Cite
MLA Citation
Kelly M Hatfield et al.. “Effectiveness of Coronavirus Disease 2019 (COVID-19) Vaccination Against Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Infection Among Residents of US Nursing Homes Before and During the Delta Variant Predominance, December 2020–November 2021 .” Clinical infectious diseases, vol. 75, n.d., pp. S147–S154. http://access.bl.uk/ark:/81055/vdc_100167547653.0x00002f