Related topics: influenza · swine flu · flu · influenza virus · virus

Bird flu detected in mammals but risk to humans low: experts

Experts have warned that the recent detection of bird flu in mammals including foxes, otters, minks, seals and even grizzly bears is concerning but emphasized that the virus would have to significantly mutate to spread between ...

No spread of H5N1 bird flu between mammals found

Mammals can become infected with the highly pathogenic (HPAI) avian influenza H5N1 virus when they feed on infected sick or dead wild birds. Studies by Wageningen Bioveterinary Research (WBVR) show that there is no spread ...

Bird flu prompts slaughter of 1.8M chickens in Nebraska

Nebraska agriculture officials say another 1.8 million chickens must be killed after bird flu was found on a farm in the latest sign that the outbreak that has already prompted the slaughter of more than 50 million birds ...

Bird flu infects Iowa egg farm with 1 million chickens

Iowa agriculture officials said Monday that another commercial egg farm in the state has been infected with bird flu, the first commercial farm case identified since April, when a turkey farm was infected.

Bird flu strikes S.Africa's endangered penguins

Close to thirty African penguins have died due to avian flu since mid-August at Boulders beach near Cape Town, a crucial breeding site in South Africa.

Mercury pollution makes ducks more likely to get bird flu: study

Ducks contaminated by mercury pollution are significantly more likely to get bird flu, a study found Wednesday, pointing towards another way that human-driven changes to the natural world increase the risk of viruses spreading.

World's first case of bird flu in porpoise: Sweden

A porpoise found stranded on a Swedish beach in June died of bird flu, the first time the virus has been detected in a porpoise, Sweden's National Veterinary Institute said Wednesday.

Wild bird monitoring to predict zoonotic disease risk

Australia's largest wild bird sample collection has been established by experts around the nation, including a Deakin University researcher. Here's what it's showing about zoonotic disease.

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Orthomyxoviridae

Influenzavirus A Influenzavirus B Influenzavirus C Isavirus Thogotovirus

The Orthomyxoviridae (orthos, Greek for "straight"; myxa, Greek for "mucus") are a family of RNA viruses that includes five genera: Influenzavirus A, Influenzavirus B, Influenzavirus C, Isavirus and Thogotovirus. The first three genera contain viruses that cause influenza in vertebrates, including birds (see also avian influenza), humans, and other mammals. Isaviruses infect salmon; thogotoviruses infect vertebrates and invertebrates, such as mosquitoes and sea lice.

The three genera of Influenzavirus, which are identified by antigenic differences in their nucleoprotein and matrix protein infect vertebrates as follows:

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