Second boosters: What the studies tell us about the fourth Covid-19 jab - AsiaOne

With Covid-19 cases surging again, many countries have rolled out fourth doses of the vaccines . But most of these second booster programmes are just for vulnerable groups like the elderly and the immunocompromised as questions remain over how lasting the imm…

With Covid-19 cases surging again, many countries have rolled out fourth doses of the vaccines . But most of these second booster programmes are just for vulnerable groups like the elderly and the i… [+6070 chars]

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