Health awareness

HIV community advocates spark a global conversation

Meet three HIV advocates who are using their stories to uplift, spark change, and create spaces of healing and hope across continents

October 7, 2025

Share this article

Facebook icon

.st0{fill:#00857C;} X icon

Linkedin icon

Email icon

Around the world, HIV advocates are working tirelessly to confront stigma, alleviate loneliness and empower people living with HIV through education, community building and storytelling.

Isaac Ogunkola, Erika Castellanos and Nesrine Rizk exemplify how compassionate advocacy can transform lives. Their work reminds us that even the smallest action — whether it’s sharing a story, offering support or educating just one person — can spark meaningful change.

Above, watch them reflect on their work and read on to learn more about each advocate.

Isaac Ogunkola: Empowering the next generation of HIV advocates

Isaac Ogunkola didn’t set out to be a voice for the HIV community. When he began working with young refugees and local children in Nigeria, the goal was to teach reading and writing. After learning some of them were living with HIV, he reflected on the experience of watching family members die from preventable diseases and decided he would pursue public health.

Ogunkola’s organization connects youth to clinics for testing and treatment of HIV, preventive education and harm reduction services. “People living with HIV face many challenges, and my work is about connecting them to medical services and fostering environments where they can live safely and with dignity,” Ogunkola said.

His biggest impact has been through the development of a peer education program for refugee settlements in West Africa. By training 35 young refugees as educators and advocates, they’ve been able to reach 2,000 other refugees with testing and prevention services. These peer advocates help combat stigma by creating a safe space to discuss topics related to HIV transmission, like sex and drug use, that are often stigmatized.

“The peer educators can continue the training while I’m no longer in the settlements. Seeing that the project is self-sustaining, that is success for me.”

  • Isaac Ogunkola

Although Ogunkola’s advocacy journey has expanded beyond the grassroots level to working with governments and policymakers, he’s still passionate about the power of individuals to make a difference, especially young people.

“We can tap into the strength of young people,” he said. “We can push young people to be stakeholders in the implementation of these projects right from the beginning and throughout the life of the projects.”

Erika Castellanos: The joyful warrior

Erika Castellanos first encountered the devastation of the HIV epidemic while volunteering at a hospice in Mexico in the early 1990s. As a transgender woman from a small town in Belize, Castellanos understood what it felt like to be stigmatized by her community. So, when she noticed hospice patients with HIV who had been abandoned by their relatives, she stepped in to hold their hands and read them books, making sure they knew they weren’t alone.

In 1995, Castellanos contracted HIV and was told she’d have just six months to live. She’s grateful to have survived that moment, and it was an unexpected encounter with another woman living with HIV at that time that inspired Castellanos to become an advocate herself. This other woman was always cheerful and good-humored about her condition despite her difficult prognosis, which puzzled Castellanos — until she decided to try and do the same. She realized that by embracing her own diagnosis and speaking openly about living with HIV, she could empower others. 

“It felt good to be able to laugh again, even about the things we were struggling with. If I want to do anything in life, I want to make someone else smile.”

  • Erika Castellanos

Over the past three decades, Castellanos has advocated for a better quality of life for people living with HIV and the LGBTQ+ community worldwide. She now lives in the Netherlands with her husband and two children, where she runs an organization that advances equality for the transgender and gender diverse communities.  

Even as the challenges facing these communities have changed, the most important part of her advocacy work has always been sharing positivity with others. 

“Living with HIV is not just about managing the virus, but also about managing the judgment and prejudice that comes with it,” she said. 

Castellanos emphasizes the importance of sharing stories to combat loneliness and stigma. “Don’t be shy,” she urges. “Speak out. Share your stories. Someone else will hear your message and no longer feel alone.”

Nesrine Rizk: Bridging medicine and social science in HIV care 

Dr. Nesrine Rizk believes medicine is not just a science, but also a social discipline, especially when treating people with infectious diseases like HIV.

“Because of its history and transmission route, HIV is deeply intertwined with cultural norms, stigma and how people live and interact,” said Rizk, who practices in Lebanon.

Rizk advocates for comprehensive education of health care providers and the public, policy reform and community engagement to dismantle stigma.

“Stigma will impact the ability of a person to access prevention methods, stigma will impact an individual’s access to HIV health care, and stigma will affect treatment and adherence to therapy,” she said. “Stigma creates barriers to accessing prevention, care and treatment, and can lead to late diagnosis and increased mortality. It impacts their quality of life profoundly.”

In Rizk’s region, access to condoms can be limited, at-home testing is often unavailable and patients sometimes feel compelled to hide their medication from loved ones. These additional barriers to care have, in part, contributed to the region’s steep rise in new infections.

Rizk believes physicians should normalize discussions about sexual health and HIV in primary care settings, just as providers would address cholesterol or blood pressure.

“The bond between providers and people living with HIV is unique,” she said. “Being present to support patients throughout their life journey is essential.”

  • Nesrine Rizk

These stories are a powerful reminder that HIV advocacy is not just about HIV — it’s about humanity. Through empathy, courage and connection, individuals like Ogunkola, Castellanos and Rizk show us that change often begins with one person making the effort to care. Whether by listening, sharing or simply standing beside someone on their journey, we all have the power to make a difference.

Health awareness

Debunking 6 common myths about pneumonia in adults

Don't underestimate the severity of this infection of the lungs

October 1, 2025

Share this article

Facebook icon

.st0{fill:#00857C;} X icon

Linkedin icon

Email icon

couple being consulted by a female doctor wearing a white coat

What is pneumonia?

Pneumonia is an infection of one or both lungs that can make it difficult to breathe and limit your ability to get enough oxygen.

Some common myths about pneumonia in adults, explained:

01.

Myth: Pneumonia is only viral.


Fact: Viral and bacterial pneumonia are the most common types of pneumonia.

Viral pneumonia is typically caused by respiratory viruses like the flu, SARS-CoV-2 (the virus that causes COVID-19), respiratory syncytial virus (RSV) or human metapneumovirus (HMPV). If you have viral pneumonia, you’re also at risk for developing bacterial pneumonia as a complication.

The most common type of bacterial pneumonia is called pneumococcal pneumonia, which occurs when the bacteria Streptococcus pneumoniae causes a lung infection. Pneumococcal pneumonia can be a serious illness.

02.

Myth: Cold weather causes pneumonia.

Fact: Cold weather doesn’t cause pneumonia — viruses and bacteria do. Pneumonia can be a concern year round, especially for those at increased risk.

03.

Myth: Only elderly people get pneumonia.

Fact: It’s true that adults 50 years of age and older are particularly at risk, but people of all ages can get pneumonia.

Pneumonia risk factors for people of all ages include medical conditions such as diabetes, heart disease, lung disease and HIV.

04.

Myth: Pneumonia isn’t contagious.

Fact: The viruses and bacteria that cause pneumonia are contagious. People who are infected can spread the virus or bacteria through the air when they cough, sneeze or talk. People who have the virus or the bacteria in their respiratory tract, but have no symptoms, can pass it on to others.

People can occasionally catch pneumonia by touching something that has the virus or bacteria on it and then touching their noses or mouths.

05.

Myth: Pneumonia’s only symptom is a cough.

Fact: Cough is a common symptom, but pneumonia can present differently in people based on a variety of factors. Other symptoms include:

  • Fever
  • Difficulty breathing
  • Shortness of breath
  • Chills
  • Rapid breathing
  • Chest pains
  • Confusion
  • Loss of appetite

Older adults with pneumonia may even have a lower-than-normal temperature and, at times, sudden changes in mental awareness. For those with chronic lung conditions, pneumonia may exacerbate existing symptoms. Sometimes, pneumonia symptoms can be mild, making it more difficult to diagnose.

06.

Myth: Pneumonia isn’t serious.

Fact: Pneumonia can cause serious illness, such as respiratory failure, fluid or pus in or around the lungs and sepsis. These complications can be life-threatening.

As you grow older, your risk for pneumonia increases. Speak with your health care provider to learn more about the disease and the actions you can take to help reduce your risk.

Health awareness

From awareness to action: understanding triple negative breast cancer (TNBC)

Early detection is important for this aggressive type of breast cancer. Learn more about the risk factors, signs and symptoms of TNBC.

September 29, 2025

Share this article

Facebook icon

.st0{fill:#00857C;} X icon

Linkedin icon

Email icon

Three women sit on couch

Breast cancer is the most commonly diagnosed cancer among women in the U.S. There are many different types and subtypes of breast cancer — defined by where it starts in the breast, how much it has grown or spread, and how it behaves. One of the more aggressive and difficult-to-treat types is triple-negative breast cancer (TNBC), and knowing the facts is one of the most important steps in a patient’s cancer journey. 

What is TNBC? 

Breast cancer tumors may be tested for three receptors, or proteins, that make cancer grow. A TNBC diagnosis is made when the tumor tests negative for estrogen and progesterone receptors and does not over express HER2. 

TNBC differs from other types of invasive breast cancer, as it tends to grow and spread faster, with a worse prognosis for patients. It also has a high likelihood of recurrence.   

Approximately 1 in 8 women in the U.S. will be diagnosed with breast cancer. Approximately 10-15% of these diagnoses are TNBC. 

Who’s at risk of developing TNBC? 

While TNBC can affect anyone, some people may be at higher risk. Factors that make someone more likely to be diagnosed with TNBC include: 

  • Sex: People assigned female at birth are at higher risk for TNBC compared to people assigned male at birth.
  • Race/ethnicity: TNBC disproportionately affects Black women. Nearly 20% of breast cancers diagnosed in Black women are TNBC.
  • Age: TNBC is more common in women younger than 40.
  • Genetic mutations: Mutations in certain genes are associated with TNBC.

What are the signs and symptoms of TNBC?

TNBC may have the same signs and symptoms as other common types of breast cancer, though most breast cancers are detected before any symptoms appear through regular screenings.

Possible signs and symptoms of breast cancer may include:

  • A new breast lump or mass
  • Swelling of all or part of a breast
  • Skin dimpling
  • Breast or nipple pain
  • Nipple retraction
  • Nipple or breast skin that’s red, dry, flaking or thickened
  • Nipple discharge
  • Swollen lymph nodes, under the arm or near the collar bone
Health practitioner explaining medical test to female patient in hospital room

Our commitment to access to health  

We recognize that barriers like limited access to screening and quality care, differences in potential risks and other factors continue to fuel disparities among those disproportionately affected by breast cancer. That’s why it’s critical to ensure those who need it have access to care and support early enough in their journey to benefit them. Through a combination of digital support tools and resources, we’re closing care gaps and helping patients overcome barriers to care, no matter where they are in their journey.

Josette Gbemudu

Early detection of breast cancer isn't just important — it could be life-saving. That’s why we’re focused on helping women get the care they need.

— Josette Gbemudu

AVP, patient health innovation 

Navigating breast cancer, especially aggressive types like TNBC, can be daunting and for some — overwhelming. However, access to information and the right tools and resources can contribute to a more equitable patient journey for those impacted. By equipping patients to make better informed decisions, we can help them to advocate and determine the best path forward.  

”We focus our work on making the most impact for patients — from advancing science to help patients living with this condition to creating patient-friendly education materials. We’re committed to improving outcomes for breast cancer patients, globally,” said Dr. Karen Lisa Smith, senior principal scientist.   

Learn more about our commitment to expanding access to health.

Health awareness

Finding joy after surviving cervical cancer twice

How one woman embraced life, marriage and motherhood despite her cervical cancer diagnosis

September 25, 2025

Share this article

Facebook icon

.st0{fill:#00857C;} X icon

Linkedin icon

Email icon

Chrstine Granado and her family

Several years ago, Christine Granado was living happily in New Jersey with her fiancé and then-9-year-old son, but she felt something wasn’t right.

In the span of a year, she lost three pregnancies. The first miscarriage came as a total shock. With the second, she felt confused. After the third, she was afraid something was terribly wrong. She decided to go for a routine checkup. While undergoing a series of tests ordered by her OB-GYN, she got surprising news: she was diagnosed with stage IIB squamous cell cervical cancer that had spread to her lymph nodes. At just 28, Christine said she felt disbelief.

“How can I have cancer at this age?” she asked herself. “I remember peeking through my bangs, feeling like I was trying to hide behind them.”

Young women are at risk for cervical cancer, too

Granado wasn’t alone in asking herself that question. Cervical cancer is most often diagnosed between the ages of 35 and 44. In 2022, over 660,000 people around the world were diagnosed with cervical cancer. In 2025, it’s estimated that around 13,000 people will be diagnosed with cervical cancer in the U.S.

Regular screenings can catch early changes in the cervix before they turn into cancer, but not everyone has the same access or risk factors for cervical cancer. That’s why it’s so important to make sure everyone gets the care they need.

Beginning her cancer treatment journey

Granado started treatment as soon as possible. She was prepared for physical side effects but was overwhelmed by the other changes that soon followed, including how she felt about losing her fertility. She and her partner discussed preserving her eggs but decided against it as doing so would have delayed her treatment.

Granado’s cancer went into remission for three years, and she found joy again: She and her fiancé got married and decided to have a baby via surrogate.

The shock of a recurring cancer diagnosis

Then, soon before her son was born, Granado started having unexplained chest pains. A CT scan found enlarged lymph nodes. She was diagnosed with metastatic cancer.

“When I got the recurrence diagnosis, I was devastated. It was hard to hear, but it motivated me to finish things, to contact a lawyer and get things in my kids’ names — to think about life after me,” she said. 

It also motivated her to continue with more treatments. During her second round of treatment, Granado was able to welcome her new son. When she saw him, she took him in her arms: “I bawled my eyes out.” 

A focus on mental health 

In addition to her son’s arrival, Granado said a focus on herself has sharpened her resolve to live her best life. When the cancer came back, she grieved for her life. She would cry and sleep all day. Her depression stopped her from enjoying precious time with her family.

“The most disabling thing I dealt with was the depression,” she said. “There were days when I would feel physically OK, but I’d still stay in bed all day.” Thankfully, Granado had the support of a psychologist and a psychiatrist who helped her feel well again. 

little boy laying with a dog

Cervical cancer won’t stop her from living her best life 

Granado has been able to complete a master’s degree in health leadership, and her family has a new border collie named Harry. Even everyday activities like going to the hardware store and winding down with a book mean so much more now. She appreciates the small details, like watching TV with her son on the couch.

“Life has been amazingly boring,” she says. “In a good way.” 

Granado said she hopes her story will inspire others and give them hope in the face of a cancer diagnosis.

Health awareness

Measles: signs and symptoms

Learn more about what the measles virus is and how measles spreads

September 17, 2025

Share this article

Facebook icon

.st0{fill:#00857C;} X icon

Linkedin icon

Email icon

Baby with pacifier
Illustration of a person holding a child. A circular inset on the left side of the image contains various virus-like particles, indicating an infection or illness.

What is measles?

Measles is a highly contagious viral disease that can affect people of all ages but is most common in children. The virus lives in the mucus of the nose and throat of an infected person.

Measles spreads through the air when an infected person coughs or sneezes. Symptoms appear 7 to 14 days after contact with the virus.

Common measles symptoms include:

High fever

(may spike to more than 104°F)

Cough

Runny nose

Red watery eyes

(7-14 days after contact with the virus)

Tiny white spots in mouth

(2-3 days after symptoms begin)

Rash

(3-5 days after symptoms begin)

How measles spreads

icon
Is measles airborne?

The measles virus can live for up to two hours in an airspace after an infected person leaves an area.

icon
How contagious is measles?

If one person has measles, up to 90% of unvaccinated people close to that person will also become infected.

icon
How long is measles contagious for?

Infected people can spread measles to others four days before through four days after the rash appears.

icon
How long is the measles incubation period?

After being exposed to the measles virus, it can incubate for up to 21 days. An incubation period is how long it takes for you to develop symptoms after exposure to an infectious disease.

icon
Does measles cause complications?

Measles can cause health complications. Common complications include ear infections and diarrhea. Serious complications include pneumonia and encephalitis (an inflammation of the brain). Measles may impact the daily lives of patients and their caretakers (e.g., can result in lost work time or missed school days).

Measles can be serious and lead to complications 

  • About 1 in 5 unvaccinated people in the U.S. who get measles are hospitalized.
  • As many as 1 out of every 20 children with measles get pneumonia, the most common cause of death from measles in young children.
  • Approximately 1 to 3 of every 1,000 children who become infected with measles will die from respiratory and neurologic complications.

Understanding measles outbreaks

Before the vaccine became available in 1963, an estimated 3 to 4 million Americans contracted measles each year; an estimated 48,000 people in the U.S. were hospitalized and there were approximately 400 to 500 deaths annually.

icon

Endemic (regularly occurring within an area or community) measles was declared eliminated in the U.S. in 2000.

icon

2025 saw the greatest number of measles cases reported in the U.S. since 1992.

When you’re contagious with measles, up to 90% of the people around you who are not vaccinated will also become infected.

In the U.S., measles cases can originate from international travel as the disease remains common in many parts of the world. Typically, 2 out of 3 of travelers with measles are unvaccinated Americans re-entering the country.

As seen by the recent outbreaks across the country, measles can spread rapidly, and infected individuals can spread measles to other people who are not immune.

Innovation

Macrocyclic peptides: a new research frontier

Merck scientists are exploring macrocyclic peptides, a new way to combine the properties of a biologic in a pill.

September 15, 2025

Share this article

Facebook icon

.st0{fill:#00857C;} X icon

Linkedin icon

Email icon

Macrocyclic peptides

Small molecules, generally taken as pills, make up nearly 90% of medicines used today. It’s hard to think of a world without them. The use of small molecules has been critical in expanding the reach of and access to medicines around the world.

But it’s challenging for small molecules to impact the large featureless surfaces of protein-protein interactions, which govern a wide range of biological processes in our bodies.

man wearing white coat standing next to text reading drawn to science

To target these interactions, scientists have turned to large molecule biologic therapies, like monoclonal antibodies, which — taken by infusion or injection — have been critical in advancing the treatment of many diseases, including some cancers and autoimmune disorders.

Over a decade ago, Merck scientists began investigating a way to create a new kind of medicine that would combine the potency and precise targeting of an antibody with the stability and ease of administration of a small molecule or pill.

“Macrocyclic peptides allow us to cast a wider net on the protein interactions we want to drug, providing a vast and untapped opportunity to access a wider range of targets and potentially new ways to treat different diseases,” said Dani Schultz, director of chemistry.

An intermediate-sized modality: not too big, not too small

Macrocyclic peptides, with their intermediate size — not too big, not too small — combine the properties of both small molecules and biologics. With their larger size and unique ring shape, macrocyclic peptides can tightly bind ample surface area to disrupt protein-protein interactions compared to traditional, linear-shaped peptide therapies. 

Size differences between small molecule, peptide and antibody

“The design and invention of macrocyclic peptides is notoriously complicated,” said David Thaisrivongs, director of chemistry.

David Thaisrivongs

“Similarly, scaling production up for a macrocyclic peptide small molecule, with four to five times the size and complexity of a typical small molecule, represented a bold endeavor.”

  • David Thaisrivongs
    Director of chemistry, Merck

For our researchers, this work started by screening large libraries of cyclic peptides using messenger RNA display technology. This led to the identification of cyclic peptide leads that were optimized using 3-dimensional protein structure-based design and advanced computational techniques. Further molecular iterations and refinements improved the absorption, potency and stability of the first candidate.

“A diverse, interdisciplinary team of skilled and determined people from across our chemistry organization has dedicated substantial efforts to advancing this science,” said Thaisrivongs.

Macrocyclic peptides potentially open new possibilities in drug discovery 

Our ongoing macrocyclic peptide discovery efforts represent a new era in drug discovery which may one day allow us to treat diseases that have long evaded traditional small molecule approaches and help improve access to medicines typically administered via injection or intravenously. 

“Macrocyclic peptides are a new modality, and we’re still in the early stages of understanding their potential to impact disease and patient care,” said Schultz.

“There’s no playbook here, we’re innovating and developing new techniques on how to optimize and synthesize macrocyclic peptides — it’s really thrilling for me as a scientist because the potential is huge.”

  • Dani Schultz
    Director of chemistry, Merck
Dani Schultz

Health awareness

Helping protect against vaccine-preventable diseases

Vaccination is one of the many ways you can help protect your loved ones against certain vaccine-preventable diseases

September 10, 2025

Share this article

Facebook icon

.st0{fill:#00857C;} X icon

Linkedin icon

Email icon

Woman and child sitting at table smiling

Vaccines are one of the greatest public health success stories in history

Vaccines help protect against more than 30 potentially life-threatening diseases and are one of the greatest public health achievements of our time.

We recognize and support many global health stakeholders for their efforts in raising awareness about the importance of vaccination and helping prevent infectious diseases around the world.

Broader vaccination coverage along with other public health measures have contributed to the eradication of smallpox and significantly decreased the incidence of other vaccine-preventable diseases.

Declining immunization rates persist

Childhood immunization rates have been declining in recent years, with the global population facing the largest sustained decline in approximately 30 years.

mother laying down in bed with her newborn

A downward trend in global immunization persists, with immunization coverage stalling in 2023, leaving 2.7 million more children un- or under-vaccinated compared to 2019.

baby sitting down on table with band aid on right arm

Research shows that routine childhood vaccinations for people in the U.S. born from 1994-2023 have contributed to helping prevent about 508 million illnesses and 32 million hospitalizations.

family being consulted by doctor wearing white coat

In 2024, it’s estimated that more than 14.3 million infants around the world did not receive some routinely recommended vaccines.

Recovering immunization rates together

Now, more than ever, we have an opportunity to reimagine the role we all can play.

At Merck, our broad portfolio of vaccines helps protect against certain infectious diseases affecting individuals around the world and across all stages of life from infancy through older adulthood. Through our work in vaccines, we’re committed to helping protect people from vaccine-preventable diseases today and for generations to come.

But we can’t be successful alone. That’s why we’re working with a variety of stakeholders to help increase vaccination rates, build trust and enable access to vaccination services for everyone who can benefit from them.

We’re also encouraging individuals to speak with their health care providers about vaccines that may be recommended for them or their families.

older person with pink shirt smiling outstretching her arms to hug a younger person with braids.

Merck and its legacy companies have a 100+ year history of innovation and commitment to helping prevent disease by discovering, developing, supplying and delivering vaccines.

To keep pace with the ever-evolving disease landscape, we go where the need is to find new ways to address complex public health problems. We continue to invest in groundbreaking research and breakthrough technologies to help protect against potentially life-altering vaccine-preventable diseases.

Health awareness

Is your child up to date on their vaccines? Make a plan today

Keeping kids’ vaccinations current can help protect them against vaccine-preventable diseases

August 18, 2025

Share this article

Facebook icon

.st0{fill:#00857C;} X icon

Linkedin icon

Email icon

smiling child with band aid on her arm

One of the many ways parents can help protect their kids from certain infectious diseases is by keeping them up to date on their recommended vaccines.

“Vaccines are powerful tools that can help protect against certain diseases. Making sure your kids are up to date on their vaccines is one way you can help protect them,” said Andrew “Drew” Otoo, PharmD, president of global vaccines from 2022-2025 and current regional president, Merck. “Speak with your child’s health care provider and ask about vaccines that may be recommended.”

In addition to scheduling vaccinations, child well-visits are essential for discussing concerns about children’s health and tracking growth and developmental milestones.

Dr. Andrew Otoo
Dr. Andrew “Drew” Otoo

“For all of us, let’s get creative. We’ve seen what our communities can do when it comes to new and effective ways to reach populations for vaccination.”

Even small actions can have an impact. Parents and community members can make a point to talk about routine and recommended vaccinations. Health care providers can use electronic health records and immunization registries to remind parents to schedule well-child visits for children who may be overdue for a check-up.

It’s critical to improve and maintain high vaccination rates

In 2023:

~21M

~21 million children around the world were either unvaccinated or undervaccinated in 2023. 14.5 million children did not receive any vaccines, almost 2 million more than in 2019, according to UNICEF.

40%

40% of adults in the U.S. feel it is “extremely important” for parents to have their children vaccinated, down from 58% in 2019 and 64% in 2001. (Gallup, July 1-21, 2024).

Persisting challenges around vaccination equity and confidence can lead to drops in vaccination coverage rates, putting children and individuals of all ages at risk of potentially serious, yet vaccine-preventable, diseases.

“Our purpose is clear: How can we continue to increase vaccination rates for all recommended vaccines for all populations, including underserved communities, to help protect public health? There is an urgency to this work,” said Otoo.

Health literacy is also key in these efforts. When you understand health information, you can make make informed health decisions.

“We’re surrounded by so much information coming at us from so many directions, and it can be hard to make sense of where to go for guidance or answers,” said Otoo. “It’s so important to make sure that we’re providing information that parents can understand to help them make informed decisions about vaccination for their families, as well as overall health care.”

For more than 100 years, Merck has been a pioneer in the fight against vaccine-preventable diseases. But the burden is still too high, and new threats to global health will emerge. That’s why we are continuing to invest in groundbreaking research and breakthrough technologies to help protect against a variety of potentially serious infectious diseases. We’re also collaborating globally, nationally and locally to build trust, enable access and improve vaccination rates.

We remain focused on helping to protect people around the world and across all stages of life.

Sustainability

Merck publishes Purpose for Progress Impact Report 2024/2025

August 18, 2025

Share this article

Facebook icon

.st0{fill:#00857C;} X icon

Linkedin icon

Email icon

image of half of a petri dish and half of an earth merged to make a full circle. Text on top says

Our company’s purpose is to use the power of leading-edge science to save and improve lives around the world. This purpose serves as our compass and guides us every day. Our Purpose for Progress: Merck 2024/2025 Impact Report provides a comprehensive view of how we’re pursuing innovative science for the health of people and animals and ensuring our efforts drive significant and sustainable value.

“Our long-standing commitment and focus on advancing access to health, operating responsibly and implementing strategies that protect the health of people, animals and the planet is unwavering,” said Rob Davis, chairman and CEO. “As we continue to navigate the rapid pace of change happening all around us, I am proud of the progress we’ve made thus far, and I remain optimistic about our future.”

A few highlights from this year’s report*

icon
>247M

People enabled access to our innovative medicines and vaccines through access solutions.

icon
>66M

People reached with our social investments in low- and middle-income countries and in underserved populations in high-income countries. We've surpassed the goal of reaching 50 million by 2025.

icon
92%

Countries reached globally with our products, surpassing our goal for the fourth year in a row.

*All numbers as of 2024 (report page 15)

Our employees worldwide played a pivotal role in delivering novel solutions that addressed some of the world’s most serious and complex global health challenges. We’re proud that in 2024, our medicines and vaccines reached more than 450 million people around the world.

Our sustainability strategy has four main areas of focus

  • Access to health: In collaboration with global health stakeholders, our social investments aim to advance access to quality health systems, and we seek to ensure that our products are accessible and affordable worldwide.
  • Employees: We recognize that our ability to excel depends on the integrity, knowledge, imagination, skill, diversity of thought, perspectives and experiences, and well-being of our employees.
  • Environmental sustainability: We strive to operate our business sustainably, considering the impact on both the health of our planet and its inhabitants, while also providing opportunities for product innovation and reduction in costs and risks. We have a long history of environmental stewardship and compliance, and we continuously evolve our strategy and efforts in the face of a changing climate.
  • Ethics and values: Our ethics and values are at the center of everything we do. Through our unwavering commitment to transparency, we are committed to earning the trust and confidence of our stakeholders.

Learn more about our progress in these areas and read this year’s report.

Sustainability

We’re ‘seeing green’ and building a more sustainable business

Our award-winning ‘See Green, Be Green’ sustainability initiative exemplifies our company's and employees' commitment to operating responsibly

August 4, 2025

Share this article

Facebook icon

.st0{fill:#00857C;} X icon

Linkedin icon

Email icon

collage of photos showing employees working outside

Across our locations in Ireland, we’re taking the Emerald Isle ethos to heart with a call to “See Green, Be Green.”

See Green, Be Green is an employee-led initiative that aims to reduce our company’s environmental impact by embedding a sustainability mindset at every level of our operations. The program started in Ireland and has taken root across the organization, inspiring innovation, enhancing efficiency and driving progress toward our company’s climate goals.

“We decided to collectively develop, implement and maintain this program, not just because it’s the right thing to do, but because of our shared belief that sustainability-focused business is smart business. What we do — and how we do it — truly matters.”

  • Mark O’Connor
    Associate director of engineering in our energy and environmental sustainability center of excellence

Built around four focus areas — carbon transition, waste and water management, biodiversity and culture — See Green, Be Green is a framework that guides the sites’ sustainability efforts, from installing EV chargers and solar panels to planting pollinator gardens and native trees.

Colleagues from six of our Ireland locations — Ballydine, Brinny, Carlow, Biotech Dublin, Dunboyne, and Red Oak North — form a core team that identifies shared priorities and guides projects. The country leadership team, composed of plant managers, actively sponsors this initiative and provides strategic oversight. Cross-functional teams facilitate knowledge sharing among the sites to foster innovation and drive progress countrywide.

group of 9 people standing in front of office and smiling
Members of the See Green, Be Green core team in Carlow

“As individuals, you can definitely make a difference,” said James Maher, engineering specialist and See Green, Be Green lead in Carlow. “But when you come together as a group, the change can be massive.” 

Since the program’s launch, the sites have made significant strides in reducing greenhouse gas emissions, waste and water usage, earning numerous accolades along the way, including the top honor from the Irish business community’s Green Awards, which recognizes companies excelling in environmental innovation and leadership.

Our sustainability efforts in action

Carbon transition 

Reducing carbon emissions is critical to our company’s goal of achieving net zero by 2045. All six of our Ireland locations involved in the See Green, Be Green program have been certified in ISO 50001, an internationally recognized standard for managing energy, and in 2024 sourced 56% renewable energy through virtual power purchase agreements, making progress toward our company’s target to source 100% of our purchased electricity from renewable sources by 2025.

Other initiatives include installing solar panels, using electric company vehicles and transitioning from gas to electric boilers.

  

A 15-acre, 7.3-MW solar farm in Ballydine can generate the equivalent of powering more than 5,000 households with electricity; meeting pods in Dunboyne are outfitted with 160W 12V solar panels that supply power to the internal LED lights and USB charging points.

Waste and water management 

The Ireland sites send zero waste to landfill — key to our company-wide goal for at least 50% of sites to do so by 2025 — and are now working on improving other means of disposal, such as recycling rather than incinerating when possible, and donating items to organizations in need.

Other efforts include installing water fountains to replace single-use water bottles, harvesting rainwater and providing reusable coffee cups in company cafes.

Carlow
Office furniture from our Carlow site gets a new life at a community center; a new and improved waste segregation system was unveiled in Brinny during Sustainability Week 2024.

Biodiversity

All six locations involved in the See Green, Be Green program have been accredited with All-Ireland Pollinator Plan Business certifications. Initiatives include planting pollinator-friendly and native species of plants, trees and bulbs, installing bug hotels and adopting “No-Mow May” to aid clover growth.

A bug hotel at Biotech Dublin and wildflower planters at Red Oak North help attract pollinators.

Culture 

Arguably the most important part of See Green, Be Green is creating a culture in which everyone is empowered to take action. From educational campaigns and outreach events to grow-your-own food and energy-reduction challenges, employees are encouraged to embrace sustainability at work, at home and in their communities.

“We want everyone to get involved so that we can make informed decisions about our habits and how it impacts our environment,” said O’Connor.

tree planting and beach cleanup
Carlow colleagues plant native trees as part of a joint reforestation initiative in Ireland and Africa; Red Oak North colleagues help clean up Sandymount Strand in Dublin.

While the sites continue to challenge themselves to do more and do better, the initiative’s impact is already palpable.  

“It’s the mindset changes, it’s the momentum, it’s getting things done,” said Maher. “It’s the fact that our company really cares and that we’re taking real action.”  

woman and child smiling in a garden

Environmental sustainability

Beyond Ireland, the color green is a call to action that resonates deeply with our shared values. Together, we’re sowing the seeds for a brighter, healthier future for our communities and our planet.