The Bihar government has issued an advisory urging people not to consume unknown fish varieties entering the state with floodwaters from Nepal, following reports of illness among some people who consumed them. The advisory, issued in August 2026, serves as a warning to residents to exercise caution when handling or consuming fish caught from floodwaters.

According to the advisory, consuming such fish has allegedly caused illness among some people. It said fish washed out of ponds, rivers, lakes and reservoirs during floods can spread across large areas and remain in prolonged contact with open drains, dead animals and decaying matter. This can increase the risk of contamination, posing a threat to human health.

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The advisory emphasizes that consuming unknown or unusual fish can lead to serious health issues, including vomiting, diarrhoea, stomach pain, dizziness, breathing difficulty, and other unusual symptoms.

The Dairy, Fisheries and Animal Resources Department has issued an advisory regarding fish arriving in Bihar from Nepal. Officials have advised people to avoid eating fish caught from floodwaters until environmental conditions return to normal and natural contaminants and pathogens subside.

The department has also asked residents to report sightings of unfamiliar fish to their respective district fisheries officer or local administration, appealing to the public to strictly avoid consuming unknown fish as a "precautionary measure". This move aims to prevent further spread of illness and protect the health of the community.

The advisory is a response to reports of illness among some people who consumed fish caught from floodwaters. The Bihar government has taken this precautionary step to ensure the safety of its citizens, particularly those living in areas where floodwaters have entered.

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The move also highlights the importance of proper food handling and hygiene practices during times of natural disasters like floods. As the situation evolves, it will be essential for residents to remain vigilant and take necessary precautions to protect their health.

The Dairy, Fisheries and Animal Resources Department's advisory serves as a reminder that even seemingly harmless fish can pose serious health risks if not handled properly.