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'Immunity one gets after Covid-19 recovery not long-term, cannot replace vaccine'

Health Ministry Clinical Research Institute director Dr Kalaiarasu Peariasamy said it may not be possible to gain long-term immunity against Covid-19 by getting infected with it.

This is because current research shows normal antibodies last for about eight months or more after recovery from the disease.

However, Kalaiarasu noted that there is no...

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