Via China Daily :
" The bird flu virus, also known as H5N1, seems to exist widely in the poultry markets, particularly in South China, posing a tough challenge for the nation's epidemic intervention work, senior experts warned.
Worse, a mutant strain of the virus called H5N1-2.3.2.1 was found spreading among live poultry, which the vaccine now in use cannot fully protect against, Guo Fusheng, technical adviser in animal health of the Food and Agriculture Organization (FAO) of the United Nation, told China Daily on Tuesday, citing information and statistics from China's Ministry of Agriculture.
"With the arrival of autumn and winter, the country is facing an escalating risk of bird flu outbreaks among poultry as well as that of humans getting infected," he warned.
Yu Kangzhen, the national chief veterinary officer of the Ministry of Agriculture, said previously that it would be hard to avert regional bird flu cases during autumn and winter but "the chance of large-scale outbreaks is quite slim".
In late August, FAO warned of a possible resurgence of bird flu outbreaks around the world. According to the organization, since the virus was first detected in 2003, it has infected at least 560 people worldwide, killing 331 of them.
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