Washington resident infected with different strain of bird flu, health officials say

A Washington resident has been hospitalized with a different strain of bird flu than those seen in past cases, state health officials announced Friday.

The person was infected with a bird flu called H5N5. State and federal health officials say it appears to be the first known human infection with the H5N5 bird flu virus.

The individual has a mixed backyard flock that was exposed to wild birds, making either the domestic birds or the wild ones the most likely source of infection, the Washington State Department of Health said . Public health officials are continuing to investigate.

It is the nation's first human case of bird flu since February . The older adult with underlying health conditions remains hospitalized. State health officials had announced the preliminary bird flu