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. 2021 Jun 27;74(2):237–245. doi: 10.1093/cid/ciab380

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Published by Oxford University Press for the Infectious Diseases Society of America 2021.

This work is written by (a) US Government employee(s) and is in the public domain in the US.

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Figure 1. — Maximum-likelihood phylogenetic tree of sequences from persistent COVID-19 cases (Pe1–Pe7), COVID-19 reinfection cases (Re1–Re16), the variants of concern B.1.1.7 and B.1.351, and globally sampled sequences from GISAID. Abbreviations: CID, Clinical Infectious Diseases; COVID-19, coronavirus disease 2019; NEJM, New England Journal of Medicine; Lancet Infect Dis, Lancet Infectious Diseases; J of Inf, Journal of Infection; Emerg Infect Dis, Emerging Infectious Diseases; CMI, Clinical Microbiology and Infection; JID, Journal of Infectious Diseases .