The Association between Influenza Vaccination and the Risk of SARS-CoV-2 Infection, Severe Illness, and Death: A Systematic Review of the Literature.
Int J Environ Res Public Health. 2020 Oct 27;17(21):7870. doi: 10.3390/ijerph17217870.
Int J Environ Res Public Health. 2020.
PMID: 33121070
Free PMC article.