A genetic analysis of samples from the patient in Louisiana recently hospitalized with the country’s first severe case of H5N1 bird flu show the virus likely mutated ... at the time of infection,” the CDC said. “Although concerning, and a reminder ...

Public health officials have just reported the first known “severe” case of bird flu in the United States. There are now 61 confirmed cases across eight states. This week, the Centers for Disease Control and Prevention (CDC) announced that a person had been hospitalized with a “severe case” of bird flu.

The CDC has declared the first “severe” case of H5N1 bird flu in the U.S., according to a press release published Wednesday. The good news? The person who contracted the virus appears to have gotten it from backyard poultry,

The first severe case of H5N1 bird flu was confirmed in Louisiana. Here is a map of other states that have been affected.

The first severe case of bird flu in the US includes unique mutations, as per CDC. These mutations, found in the patient's respiratory sample, are rare but typically seen during severe infections. The mutations may enhance the virus's ability to infect human cells but haven't been found in birds,

Connecticut has not been spared from the ongoing bird flu outbreak that has primarily been impacting livestock.

The first 'severe' human case of bird flu has many around the country concerned, but those in New Jersey may not need to feel too alarmed.

The U.S. Centers for Disease Control and Prevention said on Thursday its analysis of samples from the first severe case of bird flu in the country last week showed mutations not seen in samples from an infected backyard flock on the patient's property.

California’s battle with bird flu has been intensified as two new confirmed cases have been found in Stanislaus and Los Angeles counties. The rate at which the flu lathers has led California Governor Gavin Newsom to declare a state of emergency on December 18.