Bangladesh and India alert WHO about new H5N1 infections. In a monthly zoonotic flu update, the World Health Organization (WHO) said Bangladesh and India have reported new H5N1 avian flu cases that were previously unreported. Bangladesh’s patient is a child from Chittagong division in the country’s southeast who was admitted to the hospital on May 21, where a respiratory sample was collected. Symptoms included fever, diarrhea, and mild respiratory symptoms. The sample tested positive for H5 on May 28, and the neuraminidase was confirmed later as N1.
An investigation revealed the child had contact with backyard poultry before symptoms began. No other cases were detected, and the child has recovered. The illness marks Bangladesh’s 11th human H5N1 case since 2008 and its third of 2025.