Deaths tell one story of the pandemic. The lives saved tell another - Umair Irfan


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The Covid Virus Keeps Evolving. Why Haven't Vaccines?

While the currently available vaccines have greatly reduced death and hospitalization due to Covid-19, “their effectiveness does appear to wane with time,” said Peter Marks, director of the FDA’s Center for Biologics Evaluation and Research, during a June 28 VRBPAC meeting. Initial booster shots helped restore some protection against severe disease, but their effectiveness also seems to fade.

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Last Updated : Tuesday, March 14, 2023