A CDC map reveals counties across the ... Shortly before the human infection, the bird flu was found in cows for the first time in the world in the US states of Texas, Kansas and New Mexico.

The reduction in global travel during COVID-19 offered researchers new insights into influenza spread and mutation. After ...

Cases of H5N1 have been climbing nationally, with one West Coast state seeing a rapid increase since the start of October.

The map below shows where H3N2 strains came from ... and spread to the rest of the world in yearly flu epidemics - which is how we can predict what strains are coming each year.