Gravitas | COVID-19 Vaccines: Immunocompromised Americans to get a 4th shot

Oct 27, 2021, 11:35 PM(IST) Palki Sharma

The United States will be rolling out a 4th dose of the Wuhan virus vaccine for the immunocompromised. Is a booster shot really needed? or is it America's way of selling vaccines that are nearing expiry? Palki Sharma brings you a report.

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