Bird flu (H5N1) primarily affects birds but has spread to mammals, including humans. While human transmission remains rare, scientists fear mutation could make it airborne, potentially triggering a global health crisis.

Nevada just confirmed its first human case of avian flu from infected cattle. Nevada’s first case was found in Churchill County, the Central Nevada Health District announced on Monday.

A new strain of bird flu has infected a dairy worker in Nevada, marking the first cow-spread case, the CDC has reported. Jacob Glanville of Centivax addressed the public risk.

Bosnia has reported an outbreak of highly pathogenic H5N1 avian influenza, the World Organisation for Animal Health said on Tuesday, as a seasonal wave of the disease known as bird flu continues in Europe.