Scientists concerned about new 'deadly' bird flu

Experts are concerned about the spread of a new strain of bird flu that has already killed one woman in China.

The 73-year-old from Nanchang City caught the H10N8 virus after visiting a live poultry market, although it is not known for sure if this was the source of infection.

A second person has since become infected in China's Jiangxi province.

Scientists said the potential for it to become a pandemic "should not be underestimated".

In recent months, China has already been coping with an outbreak of a similar influenza virus called H7N9, which has killed around a quarter of those infected.

Scientists who have studied the new H10N8 virus say it has evolved some genetic characteristics that may allow it to replicate efficiently in humans.

The concern is that it could ultimately be able to spread from person to person, although experts stress that there is no evidence of this yet.