Coronavirus: Hong Kong expert warns each infected person can now spread Covid-19 to four people

A top medical expert advising the Hong Kong government on Covid-19 has warned that each infected person could transmit the coronavirus to four others, as the city has now entered the most serious phase of the public health crisis.Professor Gabriel Leung, dean of the University of Hong Kong’s medical school, said he believed there were at least 50 to 60 hidden cases in the community as an international study indicated a strain of the virus had increased its infection rate by 30 per cent due to a…

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