These are the different Covid-19 vaccines, how they work and their side effects – IOL

Globally, there are several vaccines that are either approved or have received emergency authorisation based on preliminary evidence that they are safe and effective. #Vaccines

By Rudolph Nkgadima4h ago
Cape Town – There are at least 65 Covid-19 vaccines currently in clinical trials and 20 have reached the final stages of testing.
Before vaccines are approved, they have t…

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