Vaccines against SARS-CoV-2 will have side effects – that’s a good thing – Rappler

This can be accomplished in a number of ways. One is to inject a weakened what immunologists call attenuated or even killed version of a pathogen. This approach has the benefit of looking almost identical to the real pathogen, triggering many of the same danger signals and often resulting in strong, long-term immunity, as is seen in polio vaccination. It can also be risky if you havent weakened the pathogen enough and roll out the vaccine too fast, there is a possibility of unintentionally infecting…

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