Bird flu has spread across state borders to South Australia, marking an alarming development since the deadly H5 strain was first detected in Western Australia last week.

Testing is still under way on a second bird after Australia's first case of the deadly H5 bird flu was confirmed on WA's south coast.

The H5N1 strain has been confirmed in a northern giant petrel, near where the virus was first detected in Western Australia.

The H5N1 variant of the virus was confirmed in a sick brown skua found on a remote beach near Esperance in Western Australia, about 700km southeast of Perth.

A second bird found sick on a remote beach in Western Australia's south coast has now tested positive for a deadly strain of bird flu, authorities have confirmed.

Agriculture minister Julie Cook has confirmed a second wild bird has tested positive to the H5 bird flu.

Six more birds are being tested as officials stress the outbreak appears isolated.

SYDNEY: Australia is checking for any sign of “entrenched” H5 bird flu in its wildlife after detecting the country’s first two cases, the government said Monday. Scientists…

The bird flu straing that arrived in Australia for the time last week has already caused the deaths of hundreds of millions of birds and mammals around the world.

A migratory seabird found near Esperance has become the second bird to test positive to the H5 avian flu in Australia

Dr Carol Booth of the Invasive Species Council says "in all likelihood", Australia faces a bird flu emergency.

The desperate effort to prevent a bird flu outbreak has widened, with authorities testing two dead seabirds found in South Australia.

Two dead seabirds are being tested for bird flu in South Australia.

Ground-based surveillance and drone surveys are being carried out at sea lion breeding sites along South Australia's west and far west coasts, while testing frequency has been…

A third confirmed case of the deadly H5N1 bird flu has been found in a migratory bird on Australia's southern coast.

SYDNEY: Scientists have detected the highly contagious H5 bird flu strain in a second Australian state, the nation’s agriculture minister said on Wednesday. Australia was for…

Bird flu has spread across state borders to South Australia, marking an alarming development since the deadly H5 strain was first detected in Western Australia last week.

The number of birds killed by the H5N1 strain has climbed to four as the virus is confirmed to have crossed the border into South Australia.

Three cases of the deadly strain have been found in Western Australia, in Esperance and Quindalup, while a fourth has been discovered in South Australia.

The poultry industry is on high alert after South Australia recorded its first case of the highly contagious bird flu.

A South Australian body boarder says a bird infected with H5 bird flu tried to bite him when he found it struggling in the surf.