Do I still need the vaccine or a booster if I’ve already had Covid-19? - South China Morning Post

3/7/2022 12:00:00 AM3 years 2 months ago

Infection can induce antibodies and cause so-called natural immunity but questions remain about how much protection it offers and for how long.

Published: 12:41pm, 8 Mar, 2022 Updated: 2:17pm, 8 Mar, 2022

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