A laboratory worker carries out an autopsy on dead wild geese, looking for evidence of the bird flu virus, in the laboratory of the Hungarian national food safety authority in Budapest, on January 24, 2017. Picture taken January 24, 2017. REUTERS/Laszlo Balogh
LONDON, Jan 26 (Reuters) - The global spread of bird flu and the number of viral strains currently circulating and causing infections have reached unprecedented levels, raising the risk of a potential human outbreak, according to disease experts.
Multiple outbreaks have been reported in poultry farms and wild flocks across Europe, Africa and Asia in the past three months. While most involve strains that are currently low risk for human health, the sheer number of different types, and their presence in so many parts of the world at the same time, increases the risk of viruses mixing and mutating - and possibly jumping to people.
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