SINGAPORE – At least 80 per cent of Singapore’s population would have to be vaccinated in order to achieve herd immunity against Covid-19, said the Health Ministry’s chief health scientist, Professor Tan Chorh Chuan.
“Where most of a population have immunity to the virus, this “herd immunity” indirectly reduces the risk of infection for those who are not immune to it, thereby limiting infection clusters,” he said on Wednesday (Dec 16).
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