Fear over possible Covid-19 infection gripped some vendors and shoppers in Hong Kong on Wednesday, a day after a cluster of cases plagued busy wet markets at the heart of the city.Doctors have called for testing for all market workers as a precaution, after groups of patients were linked to fish stalls at Hung Hom and To Kwa Wan markets.Microbiologist Dr Ho Pak-leung, speaking on a radio show, said wet markets were common sources of outbreaks, not just in Hong Kong.“The Food and Health Bureau…
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