H7N9

The woman, a resident of southeast China, has since recovered.

An analysis of stored samples shows that H7N9 precursor H9N2, a virus widespread in chickens, has shown increased fitness in recent years.

The death of a medical worker in China prompts worries that the virus can spread between humans.

Genetic diversity helped avian influenza A viruses make the leap from birds to humans, researchers report.

September 2013's selection of notable quotes

The avian influenza virus H7N7, a cousin to H7N9, has been found in Chinese live poultry markets.

Flu researchers propose H7N9 studies; NIH makes deal to share HeLa genome; herbal “remedies” can cause cancer; scientists record grid cell activity in humans

The H7N9 avian flu strain appears to have been transmitted from human to human for the first time, but its ability to jump between people is limited.

In a bid to avoid the controversy that dogged H5N1 research last year, flu researchers have published a letter proposing how to approach potentially dangerous research on H7N9.

Chinese scientists confirm that the avian flu virus subtype can spread through the air between ferrets.

Three patients infected with the new H7N9 bird flu have developed resistance to antiviral drug treatment, causing great concern among doctors.

The virus is able to transmit between the small mammals, but does not appear to spread readily through human-to-human contact.

An analysis of the novel virus indicates it’s descended from at least four different bird flu strains.

Two people have died and five have fallen ill from the H7N9 virus.