Australian wildlife workers have launched an unprecedented effort to vaccinate wild populations of little penguins against the highly contagious H5N1 avian influenza.

After the H5N1 virus, aka bird flu, was found in Australia, a mass vaccination program has started for the Phillip Island and St Kilda little penguins.

Australian wildlife workers have launched an unprecedented effort to vaccinate wild populations of little penguins against the highly contagious H5N1 avian influenza.