28 June 2023
A human immune system protein called butyrophilin helps to stop bird flu from infecting people, but some viruses currently circulating have mutations that might overcome this barrier
4 May 2023
Black irises have been spotted in gannets that test positive for bird flu antibodies, suggesting they are an indicator that the seabirds have survived an infection with the virus
26 April 2023
A recent outbreak of avian flu has killed 7 per cent of the wild population of California condors, and officials are bracing for the virus’ spread
21 March 2023
Analysis of wild mammals infected with H5N1 bird flu in the US found that many had brain infections and neurological symptoms, including lack of fear of people
18 March 2023
H5N1 cases in birds are expected to rise in the coming weeks as migratory species wing their way across the planet. Veterinary epidemiologist Victoria Hall explains why this outbreak is different – and what it could mean for humans
24 February 2023
An 11-year-old girl in Cambodia has died in hospital after catching bird flu. Her father has tested positive for the virus responsible, but it is unclear whether he caught the infection from her or the family's poultry collection
14 February 2023
Bird flu is infecting wild birds and poultry around the world. If it were to crossover into humans, some antiviral drugs are available but it would take time to develop a vaccine
14 February 2023
More than 600 sea lions have been found dead or dying on Peruvian beaches this year in the first mass mortality event of wild mammals from bird flu in South America
2 February 2023
Bird flu infections have been recorded in various mammals, including foxes and mink, but it is unclear whether the virus can be transmitted from one mammal to another
28 December 2022
Tens of millions of poultry are being kept indoors or have been slaughtered because of avian influenza. Without widespread vaccination of birds, free-range chickens and eggs could be off the menu forever in some countries
