This text is a part of “Improvements In: RSV,” an editorially unbiased particular report that was produced with monetary help from MSD, Sanofi and AstraZeneca.
At first, Ethel Department thought her two-year-old son, Patro, had a chilly or perhaps the flu. However on a cold day in November 2022, a seemingly frequent childhood ailment took a hairpin flip that just about despatched him into respiratory failure.
That day, fever, congestion and lethargy set in to the purpose that Department took Patro to an emergency room in Winslow, Ariz., the place he was identified with croup, given steroids and launched.
On supporting science journalism
If you happen to’re having fun with this text, think about supporting our award-winning journalism by subscribing. By buying a subscription you’re serving to to make sure the way forward for impactful tales concerning the discoveries and concepts shaping our world in the present day.
However the next day, his temperature climbed and his chest started to collapse with every breath. Frantic, Department rushed Patro to the bigger Flagstaff Medical Heart, the place he was identified with respiratory syncytial virus (RSV), positioned on oxygen and admitted to the pediatric intensive care unit.
“My son received COVID, and it was not that dangerous,” Department recollects. “The truth is, he did not even actually current signs. However with RSV, I couldn’t have waited any longer earlier than taking him into the ER as a result of his chest was depressed.”
Patro left the hospital after 4 days, however his restoration was removed from over. Three years later, he nonetheless goes to the emergency room for oxygen and respiratory remedies each winter.
For Department, a Harvard-trained lawyer and former legal professional normal of the Navajo Nation, her son’s encounter with RSV was eye-opening. She realized that the hazards of RSV have been largely unrecognized—not simply by her or the well being care staff who initially misdiagnosed him however throughout her tribal neighborhood as properly.
Over time, she additionally discovered that her son’s expertise was shockingly frequent amongst Native Individuals, particularly these on reservations, the place lack of infrastructure and multigenerational households make them uniquely susceptible to this and different sicknesses. In consequence, American Indian and Alaska Native infants bear the tragic distinction of experiencing the best charges of RSV-related hospitalization within the nation.
After Patro contracted RSV, he spent 4 days within the pediatric intensive care unit at Flagstaff Medical Heart in Arizona in 2022.
However one 12 months after Patro’s RSV scare, scientific breakthroughs emerged which have begun to bend the RSV curve amongst younger kids in Native communities: a monoclonal antibody and a maternal vaccine that may dramatically minimize RSV-related hospitalizations amongst infants.
Illness and Resilience on Navajo Lands
With a inhabitants of greater than 400,000, the Navajo Nation (whose individuals are generally known as the Diné, pronounced Din-EH, of their language) is the biggest federally acknowledged tribe within the U.S. And its reservation—residence to greater than 165,000 residents—is the biggest within the nation, encompassing roughly 27,000 sq. miles in northeastern Arizona, northwestern New Mexico and southeastern Utah. With a wealthy heritage, a definite language and cultural traditions rooted in household and ties to their land, the Diné stay one of many strongest, most vibrant Indigenous communities on the planet.
All through their historical past, the Diné—like many different tribes—have endured devastating epidemics, together with smallpox, mumps and pneumonia within the seventeenth and 18th centuries, which decimated their inhabitants. Their pressured elimination from their lands in 1864, generally known as the Lengthy Stroll, led to lethal outbreaks of measles, dysentery and pneumonia on the Bosque Redondo internment camp at Fort Sumner, N.M. The 1918 influenza pandemic killed an estimated 3,000 Diné, roughly one quarter of the tribe, based on the Navajo Occasions.
In his seminal historical past on the pre-Columbian Americas, writer Charles C. Mann famous that not one of the main infectious illnesses—together with smallpox, measles, typhoid, leprosy, bubonic plague, tuberculosis, scarlet fever, diphtheria, influenza and cholera—existed within the Western Hemisphere previous to European contact.
Recognizing the lethality of those illnesses, the Europeans turned to organic warfare to destroy and subjugate Native communities by giving them smallpox-infected blankets, clothes and different “items,” intentionally spreading the lethal sickness amongst Indigenous populations, based on medical researchers on the Nationwide and Kapodistrian College of Athens in Greece.
Due to their lack of publicity and immunity to those pathogens, scientists and geographers estimate that by the start of the 1600s, infectious illness delivered to the Americas killed greater than 56 million Indigenous folks, representing roughly 10 p.c of your entire international inhabitants on the time. This was one of many deadliest demographic collapses in human historical past. In some circumstances, whole tribes grew to become extinct, and their languages, histories and cultural methods died with them.
When COVID arrived in early 2020, tribal nations throughout North America instantly understood the risk and carried out strict prevention measures, together with lockdowns, checkpoints, temperature checks, masking and different strategies to guard their communities.
When vaccines grew to become obtainable, tribes grew to become nationwide public well being leaders by testing and vaccinating their very own members and opening their clinics and hospitals to most of the people.
Regardless of these efforts, tribal communities from Alaska to Maine nonetheless skilled a few of the highest charges of COVID an infection and demise within the nation. As of January 1, 2025, the Navajo Nation has recorded 93,980 confirmed circumstances and a couple of,334 deaths, based on the Navajo Epidemiology Heart, and at one level it claimed the best per capita an infection charge nationwide.
However at the same time as COVID captured international consideration, a quieter however relentless virus continued to stalk tribal communities, hanging Native American infants and toddlers with unmatched severity: RSV.
Battling RSV amid Social Challenges
RSV hospitalization charges amongst Indigenous infants and toddlers are as much as 10 occasions larger than the speed within the normal inhabitants.
RSV has been a persistent risk amongst all tribes. Amongst them, its impact has been devastating in Alaska’s Yukon-Kuskokwim Delta, the Navajo Nation and the White Mountain Apache Reservation in Arizona, the place pediatric hospitalization charges are among the many highest on the planet.
RSV spreads quickly by droplets, which might be transmitted from individual to individual by way of coughing or sneezing, direct human contact equivalent to touching or kissing or contact with a contaminated floor. RSV can survive on arduous surfaces for hours.
The virus’s unfold is usually accelerated by residing circumstances and different socioeconomic elements on Native lands, equivalent to overcrowded housing, restricted entry to well being care and clear water, environmental hazards and boundaries to transportation.
These stark disparities have been pushed largely by generations of displacement, damaged treaties and systemic neglect. As tribes have been pressured by the federal authorities into remoted and under-resourced reservations within the late 1800s, these circumstances grew to become the norm.
The legacy of these insurance policies continues to form the well being of their communities, leading to larger charges of infectious illnesses equivalent to RSV, based on public well being consultants and tribal epidemiologists.
“Water alone is a big public well being subject for us as a result of roughly 30 p.c of the households on our reservation haven’t any working water,” Department says. “And it’s very costly for our folks to haul their very own, and so they need to ration, which has had a direct affect on the well being of the Navajo Nation.”
Entry to primary assets and difficult residing circumstances have created environments the place infectious illnesses thrive—which highlights how well being outcomes are tied to social inequities, says Laura Hammitt, director of Infectious Illness Packages on the Johns Hopkins Heart for Indigenous Well being.

Laura Hammitt, director of Infectious Illness Packages on the Johns Hopkins Heart for Indigenous Well being, guided the Indigenous analysis portion of a worldwide nirsevimab examine. American Indian and Alaska Native kids have a few of the highest charges of RSV transmission, hospitalization and mortality within the nation.
“Social determinants of well being are actually the foundation reason for the elevated RSV illness burden amongst Native American kids,” Hammitt says. “It is a illness of poverty.”
Despite the fact that the disparity has been properly documented in medical analysis over a few years, that data has hardly ever reached Native households themselves. That’s partly as a result of the signs of RSV are just like these of different respiratory sicknesses, such because the flu and the frequent chilly. And there haven’t been culturally related public well being campaigns about RSV on Native lands, based on public well being consultants.
“I used to be doing plenty of advocacy regarding COVID on the time [of the pandemic], as a result of I used to be main the Navajo and Hopi Households COVID-19 Aid Fund, a mutual support nonprofit,” Department explains. “So I had a hyperawareness of issues like this. Besides, I had no concept what RSV was.”
After her son’s hospitalization, Department started researching RSV and was shocked to study that top transmission charges on the Navajo Nation reservation had been a significant issue for years.
As COVID circumstances started to say no and lockdowns eased on the reservation, she realized a public well being disaster was rising as folks started to assemble once more, spreading germs. RSV surged among the many tribe’s kids, so Department penned a column within the Navajo Occasions about her son’s expertise and commenced educating different dad and mom and caregivers concerning the dangers and warning indicators of RSV.
In the meantime frontline well being staff, armed with expertise from COVID, have been constructing higher methods to trace and combat infectious illnesses, laying the groundwork that continues to form the Navajo Nation’s response to RSV and different medical threats.
How COVID Formed the RSV Response
When pediatrician Amanda Burrage arrived on the Tuba Metropolis Regional Well being Care Company on the Navajo Nation reservation in 2018, the power had no coordinated effort to trace and monitor RSV circumstances and admissions. However the emergence of COVID served as a catalyst for remodeling the general public well being equipment.
Burrage led the efforts at Tuba Metropolis’s hospital by organizing a complete response, together with information assortment, contact tracing, neighborhood outreach, illness surveillance, testing, vaccination campaigns and employees coaching. As soon as that infrastructure was in place, Burrage and her group may apply these identical instruments to different infectious illnesses equivalent to RSV.
“Previous to COVID, we didn’t have anyone on employees at Tuba Metropolis centered on the info or monitoring the RSV assessments that have been optimistic and circumstances that have been hospitalized,” says Burrage, who serves as the power’s medical director of public well being. She splits her time between her medical follow and public well being efforts aimed toward bettering illness surveillance, prevention and response throughout the area.

Amanda Burrage, a pediatrician and public well being knowledgeable, is main the efforts at Tuba Metropolis Regional Well being Care Company on the Navajo Nation reservation to make sure kids obtain nirsevimab immunizations towards RSV.
As COVID circumstances started to recede, RSV transmission and hospitalizations began to spike at Tuba Metropolis, signaling the virus’s aggressive return after folks stopped isolating.
RSV primarily assaults the respiratory tract, inflaming the small airways and making it troublesome for infants and kids to breathe. The virus could cause a extreme buildup of mucus that blocks airflow, lowering oxygen ranges within the blood. For some kids, this may rapidly spiral into pneumonia or bronchiolitis, requiring hospitalization and generally intensive care. As a result of younger kids have extra fragile immune methods and lungs, RSV can overwhelm their our bodies rapidly, making it one of the vital harmful respiratory viruses for infants and toddlers, based on the Facilities for Illness Management and Prevention.
“As soon as RSV is current, there may be solely supportive care,” Burrage says. “There may be actually no remedy, and it turns into about administration of signs and monitoring for issues.”
A Breakthrough Years within the Making
In 2019, earlier than COVID emerged within the U.S., a multidisciplinary group of physicians, epidemiologists, public well being professionals and nationwide analysis establishments joined forces in a monumental international effort to review the efficacy of a new immunization that helps to forestall extreme RSV infections in infants and kids.
Nirsevimab, underneath the industrial identify Beyfortus, is a monoclonal antibody that gives infants passive immunization from RSV. Developed collectively by AstraZeneca and Sanofi, it’s not technically a “vaccine” however an immunization that works by delivering antibodies that goal the RSV-F protein, providing the strongest safety within the weeks after it’s administered.
Native Individuals performed a small however essential function in a medical trial of nirsevimab generally known as the MELODY examine. Hammitt, who served because the lead investigator for the Indigenous portion of the trial, labored carefully with the Navajo Nation to recruit contributors and monitor the outcomes, guaranteeing the analysis was carried out in a culturally respectful and collaborative means.
The preliminary part of the trial was postponed throughout the first 12 months of the pandemic however began once more in 2021, based on Hammitt. Out of 1,490 international contributors in that part, roughly 83 Navajo infants have been enrolled at Fort Defiance, Ariz., and at Shiprock and Gallup in New Mexico.
The examine’s integration of Indigenous communities offered vital information on the immunization’s efficacy in a high-risk group. The CDC’s Advisory Committee on Immunization Practices subsequently endorsed nirsevimab for all infants underneath eight months born throughout or coming into their first RSV season. The committee made a particular advice that American Indian and Alaska Native kids aged eight months to 19 months obtain a second dose for his or her second RSV season.
When the trial started, previous to COVID, “we had fairly complete information on what RSV appeared like in a prepandemic setting,” Hammitt says. “We discovered that the Navajo Nation’s charge of great RSV an infection and hospitalization was about 5 occasions larger than the final U.S. numbers.”
The outcomes from the primary part of the trial have been dramatic and quick and confirmed that nirsevimab was about 75 p.c efficient at stopping RSV sickness that required medical consideration, says Hammitt, who has spent a long time partnering with tribes within the U.S. Southwest and Alaska to review the affect of infectious illness on their communities.
“We have been a small however necessary a part of the MELODY trial due to the necessity to actually exhibit that immunizations which are licensed and really helpful work within the populations that want them essentially the most,” she explains.
After nirsevimab’s approval in 2023 by the Meals and Drug Administration, public well being officers on the Navajo Nation set their new public well being equipment in movement, reaching out to folks with eligible infants. Pfizer’s RSV vaccine for pregnant folks, Abrysvo, was additionally authorized that 12 months and provided dad and mom an alternative choice to guard their infants. A single dose administered between 32 and 36 weeks of gestation confers safety to the fetus by the placenta and lasts for about six months after beginning.
“We have been very proactive in reaching each household who had a baby that was eligible,” says Burrage, whose employees labored extra time on father or mother outreach at Tuba Metropolis. “We despatched letters, made cellphone calls. And each time a father or mother is in for a well-child go to or at prenatal checkups, we actually provide it.”
Burrage stories there was a small enhance within the variety of dad and mom who’re hesitant to just accept the shot due to the affect of antivaccine teams and misinformation. However given the dangers and excessive prevalence of RSV amongst Navajo kids, she says, the overwhelming majority are selecting to immunize their kids. A second antibody injection, Enflonsia, was authorized by the FDA for toddler use in June 2025. “We actually acknowledge this to be a game-changer for us in our neighborhood,” Burrage says. “Many individuals know anyone who’s had extreme sickness that was admitted [to a hospital] with RSV—an older sibling, a niece or nephew. Folks acknowledge that it may be extreme for younger kids and have virtually universally accepted it.”

After Patro’s hospital keep, Department started educating different dad and mom and caregivers concerning the dangers of RSV within the Navajo Nation. She encourages all Indigenous dad and mom to get their kids immunized towards the virus.
Department, who now serves as deputy county legal professional for the Coconino County Lawyer’s Workplace in Flagstaff, Ariz., hopes her son’s story will function a wake-up name concerning the hazards of RSV.
Patro fell ailing earlier than any prevention measures have been obtainable. Each winter she has to whisk him to the emergency room if he reveals indicators of wheezing or labored respiratory, a vestige of his severe brush with RSV in 2022.
“You don’t need your child to get RSV—ever,” Department says. “So get that vaccine so it can save you your self and your youngster the trauma of getting it within the first place, which is a horrible expertise for everybody. There are long-lasting results, and also you don’t need to have to enter the ER each winter along with your youngster.”