Virus Adaptation and Spread
Recent studies reveal that the H5N1 bird flu virus, particularly the clade 2.3.4.4.b strain, has infected domestic cats in , showing neurological and respiratory symptoms, and potentially adapting to new hosts.
Cats may act as reservoirs for H5N1, capable of transmitting the virus to humans. Necropsy and lab tests confirmed H5N1 infection in cats, with mutations suggesting adaptation to feline hosts.
Public Health Implications and Surveillance
The has recorded 58 human cases of H5N1, mostly due to cattle exposure, raising concerns about zoonotic transmission. The virus's ability to infect a wide range of species emphasizes the need for comprehensive surveillance.
Experts urge increased surveillance of H5N1 in cats, given their interaction with both wild animals and humans. The 's focus on dairy farms and milk safety may overlook the broader risk of cat-to-human transmission.