Bird flu: a virus moving through birds with occasional human impact
The CDC reports 2,318 measles cases in 2026, making it the worst year in decades. Outbreaks in South Carolina, Utah and Arizona have prompted renewed concern over vaccination coverage as officials weigh loss of measles-free status.
Australia faces H5N1 spread among wildlife as Baudin Rocks mass mortality events are confirmed. Victoria and South Australia report dead and sick crested terns; New Zealand begins vaccination research to protect native birds; farmers strengthen biosecurity while communities assist with surveillance.
Australia is rolling out an initial vaccination program targeting captive birds at risk from H5N1 bird flu. Vaccines are not a silver bullet; the virus continues to spread among wild and domestic birds. Authorities say vaccination will help protect vulnerable species while surveillance and biosecurity remain essential.