https://news.mayocliniclabs.com/2021/01/13/sars-cov-2-variants-still-detected-by-sars-cov-2-polymerase-chain-reaction-tests/ Get the latest news and education from Mayo Clinic Laboratories Wed, 13 Jan 2021 21:01:22 +0000 hourly 1 https://wordpress.org/?v=6.8.3