Initially contained to a few farms, the H5N1 bird flu has rapidly spread to over 900 dairy herds, affecting dozens of humans.
While a full-blown pandemic isn't certain, recent developments increase the likelihood of widespread infection and transmission.
Delays in data and inadequate testing, similar to the Covid-19 response, hindered early containment strategies.
Reinfections observed in Idaho suggest the virus might become endemic, potentially evolving into a considerably more dangerous strain.
