Three state agencies are on alert after a second case of highly pathogenic avian influenza was confirmed in a migratory duck, this time on Maui.

Offiicals said it is the first confirmed detection of H5N1 on Maui.

The Northern pintail, or koloa mapu, was found along the Wailea shoreline and submitted to the U.S. Geological Survey’s National Wildlife Health Center-Honolulu Field Station, according to a joint news release today from the state Department of Land and Natural Resources, the Department of Health and the Department of Agriculture and Biosecurity.

Samples were sent to the National Wildlife Health Center in Madison, Wis., where it tested positive for influenza H5, the release said. The National Veterinary Services Laboratories in Iowa later confirmed the bird was infected with th

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