Whooping Cough Outbreak in Yanomami Territory: Brazil Responds
A concerning outbreak of whooping cough, also known as pertussis, is impacting the vulnerable Yanomami Indigenous population in the Roraima state of northern Brazil. Brazilian health authorities have been working to contain the spread of the highly contagious respiratory illness, particularly among infants.
The Outbreak and Initial Response
The outbreak began on January 7th, and as of February 28, 2026, 16 cases have been identified, with three confirmed deaths. Reports indicate that an additional two infant deaths are suspected, awaiting confirmation by health professionals in the Parima and Roko villages. At least 59 infants have been transported out of the Yanomami territory for medical treatment.
In response, the Brazil Ministry of Health deployed a task force on February 13th to combat the outbreak. The task force is focusing on interrupting the chain of transmission through active epidemiological surveillance, investigation, diagnostic confirmation, and intensified vaccination efforts. Actions are being implemented across seven base centers: Aratha-U, Haxiu, Maloca Paapiu, Parafuri, Parima, and Surucucu.
Treatment and Prevention Strategies
Health teams are providing treatment to suspected cases and monitoring contacts. Timely chemoprophylaxis is being offered to those in close contact with confirmed or suspected cases, with a particular focus on infants under one year ancient and other high-risk individuals. This preventative measure aims to reduce transmission.
Increased Vaccination Rates
Vaccination rates within the Yanomami Territory have been a significant concern, but have shown improvement. Between 2022 and 2025, the percentage of children under one year old with a Complete Vaccination Schedule (CVS) nearly doubled, rising from 29.8% to 57.8%. Epidemiological Survivorship Rate (EVC) among children under five also increased by 39%, from 52.9% in 2022 to 73.5% in 2025.
Broader Healthcare Improvements
The response to the whooping cough outbreak is occurring alongside broader efforts to improve healthcare access for the Yanomami population. Recent data shows a 21% decrease in overall deaths in the Yanomami territory in 2024, including significant reductions in deaths from preventable causes like malaria, respiratory infections, and malnutrition. These improvements are attributed to an increased presence of healthcare professionals (a 158% increase since 2023) and investments in infrastructure, including telehealth and solar energy for healthcare hubs.
Ongoing Challenges
Despite progress, challenges remain. The Urihi Yanomami Association (UYA) has expressed concerns about the speed of the health authorities’ response. The government has also taken steps to maintain a permanent presence of the Armed Forces and Federal Police in the region to combat illegal mining, which previously hindered healthcare access.