Wastewater surveillance may be able to predict flu outbreaks and distinguish which strain is predominant roughly a week before official surveillance data are published, according to a new study led by researchers from the University of Osaka in Japan.

Bird flu cases reported in parts of Maharashtra have triggered fresh public health concern, especially after infected poultry were detected in affected zones. While human infections remain rare, experts say people who come in close contact with infected birds or contaminated environments must stay cautious.