Population immunity to pre-Omicron and Omicron SARS-CoV-2 variants in US states and counties through December 1, 2021.
Clin Infect Dis. 2022 Jun 20:ciac438. doi: 10.1093/cid/ciac438. Online ahead of print.
Clin Infect Dis. 2022.
PMID: 35717642
Free PMC article.