The different, rarer sub-type of the common avian influenza H5N1 virus has been found on a duck farm in Merced County, California, according to the World Organization for Animal Health.
The findings come at a time when outbreaks of bird flu -- a different subtype of the ... of the highly pathogenic avian influenza (HPAI) H5N1 influenza virus currently circulating ...
The H5N1 virus has a ways to go before it can successfully jump to humans but that it doesn’t reduce the threat it poses.