A top Hong Kong microbiologist has advised that elderly and chronically ill residents take the Pfizer-BioNTech coronavirus vaccine following the death of a Sinovac recipient, though a key government expert has said there is little evidence to suggest the mainland-produced jabs should be restricted by age.The debate emerged as the city recorded 11 new Covid-19 infections on Friday, taking the overall tally to 11,066, with 201 related deaths. Four of the cases were from untraceable sources, while…
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