Flu vaccine may increase the risk of coronavirus disease – Elsevier
https://www.sciencedirect.com/science/article/pii/S0264410X19313647?via%3Dihub
Flu vaccine may increase the risk of coronavirus disease – Elsevier
https://www.sciencedirect.com/science/article/pii/S0264410X19313647?via%3Dihub
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