Chinese health authorities reported cases of avian flu, but with different strains.

These are two cases in people hundreds of miles apart, which has raised concerns about the possibility of this virus spreading to humans, although the risk is currently estimated to be low, despite human cases.

One of the cases occurred in eastern China’s Jiangsu province when a 53-year-old woman tested positive for the H5N1 strain, which has been reported around the world to have caused the deaths of millions of infected birds.

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The second case occurred in a man in southern China’s Guangdong province, who instead tested positive for the H5N6 strain. The patient had been in contact with live birds when symptoms appeared and is currently in serious condition.

As of 2014, 83 human cases of this strain have been reported.

Health authorities in mainland China have reported a total of 83 human cases of avian influenza A (H5N6) since 2014, the CHP said.

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Speaking to Sky News, Erik Karlsson, who led the team that genetically sequenced the virus from a girl who died of avian flu in Cambodia, said that this virus has evolved to better infect human cells.

However, he clarified that it has not yet fully adapted to humans, so it is still considered an avian virus.

Symptoms

The symptoms of avian influenza infection in humans depend on the virus strain; the most classic are:

Gastrointestinal symptoms they are more common with infection with the A(H5N1) virus.