Health officials from the Centers for Disease Control and Prevention (CDC) on Thursday called for more testing of people on farms who have contracted bird flu.

CDC calls for expanded testing for bird flu after blood tests reveal more farmworker infections Blood tests of 115 workers on farms in Michigan and Colorado showed eight workers had antibodies ...

The CDC says a glitch in its bird flu test hasn't harmed the agency's outbreak response, but it has ignited scrutiny of its go-it-alone approach in testing for emerging pathogens.

A child ill with fever and conjunctivitis in San Francisco tested positive for bird flu but had no known source of transmission.