The Guam Department of Public Health and Social Services is reporting the fifth confirmed case of pertussis — also known as whooping cough — for 2025 locally, with epidemiologic investigation and contact tracing already underway to identify possible exposure sources.

Health officials are urging the public to make sure they are up to date on vaccinations, as pertussis is a highly contagious but vaccine-preventable respiratory illness that can cause severe coughing fits lasting several weeks, followed by a high-pitched “whoop” sound when breathing in.

Public Health warns the infection can be especially dangerous for infants, leading to serious complications such as pneumonia, dehydration, seizures, brain damage — and in some cases, life-threatening pauses in breathing.

The agency reminds parents and caregivers that DTAP and TDAP vaccines are provided through the vaccines for children program for eligible youth, and appointments can be made through the northern and southern region community health centers.

Anyone experiencing flu-like or pertussis symptoms is encouraged to contact their primary care provider as officials continue efforts to prevent further spread and protect the community.