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Explainer: How U.S. states are testing for bird flu

States in the U.S. are playing a key role in the nation's response to a growing outbreak of avian flu among dairy cattle that has also infected a small number of humans. The states are chiefly responsible for testing cows and people for the virus, but they take different approaches. Scientists tracking bird flu are increasingly concerned that current surveillance efforts are not sufficient.






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Bovine bird flu reports still at zero in Canada

Results of a national testing program conducted by the Canadian Food Inspection Agency (CFIA) released June 18 showed no evidence of the highly pathogenic avian influenza (HPAI) in the country’s milk supply. "Commercially sold milk and milk products remain safe to consume," said a release from the CFIA and the Public Health Agency of Canada (PHAC). It was also noted that even if traces of the virus were found, the pasteurization process would have rendered them harmless.


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Dairy testing for bird flu expanded in Canada

Non-clinical dairy cattle eligible for funded testing

On June 17, the Canadian Food Inspection Agency updated their guidance for private veterinarians on highly pathogenic avian influenza (HPAI). The update noted the expanded eligibility for testing, and that the CFIA would cover lab test fees at any Canadian Animal Health Surveillance Network (CAHSN) lab that is approved to test samples in domestic animals. The agency will not, however, pay veterinarian fees for sample collection or shipment to the lab.