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Fatigue, soreness, fever: experts say some side effects mean vaccines are working | iNFOnews

Fatigue, soreness, fever: experts say some side effects mean vaccines are working A dose of the Pfizer-BioNTech COVID-19 vaccine is given to a recipient at a vaccination site in Vancouver Thursday, March 11, 2021. THE CANADIAN PRESS/Jonathan Hayward March 15, 2021 - 1:00 AM Sore arm, fatigue, muscle pain and fever are some of the side effects being reported in those receiving COVID-19 vaccines, and experts say that s mostly a good thing. Vaccines are supposed to trigger an immune response, they say. That s how you know they re working. If you have a vaccine that doesn t produce a reaction in people, the resulting immune response is weaker, said Earl Brown, a microbiologist with the University of Ottawa.

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