The Guam Department of Public Health and Social Services (DPHSS) has confirmed one new case of pertussis, bringing the total number of cases on island to seven in 2026.
Health officials said the latest case was reported March 25, with epidemiological investigations and contact tracing now underway to identify potential exposure sources and limit further spread.
Pertussis, commonly known as whooping cough, is a highly contagious respiratory disease caused by bacteria and spread through close contact with infected individuals. Symptoms can include severe coughing fits lasting weeks, vomiting, exhaustion, and a distinct “whoop” sound when breathing in. In infants, the illness can be especially dangerous, sometimes causing apnea, or pauses in breathing.
DPHSS continues to monitor local, regional, and national trends while urging the community to take preventive measures.
Vaccination remains the most effective protection against pertussis. Officials recommend DTaP vaccines for infants and young children, and Tdap vaccines for adolescents, adults, and pregnant women.
Residents are also advised to:
Avoid close contact with individuals who are sick
Stay home when experiencing symptoms
Practice proper hygiene, including handwashing and covering coughs
Seek medical care if symptoms develop
Health officials emphasized that early detection and prevention are key to limiting transmission, particularly among vulnerable populations such as infants and those with weakened immune systems.
DPHSS is urging the public to remain vigilant and ensure vaccinations are up to date as the situation continues to develop.