{Reference Type}: Journal Article {Title}: SARS-CoV-2 N gene mutations impact detection by clinical molecular diagnostics: reports in two cities in the United States. {Author}: Leelawong M;Mitchell SL;Fowler RC;Gonzalez E;Hughes S;Griffith MP;Marsh JW;Harrison LH;Rakeman JL; {Journal}: Diagn Microbiol Infect Dis {Volume}: 101 {Issue}: 3 {Year}: Nov 2021 {Factor}: 2.983 {DOI}: 10.1016/j.diagmicrobio.2021.115468 {Abstract}: Nasal and nasopharyngeal swab specimens tested by the Cepheid Xpert Xpress SARS-CoV-2 were analyzed by whole-genome sequencing based on impaired detection of the N2 target. Each viral genome had at least one mutation in the N gene, which likely arose independently in the New York City and Pittsburgh study sites.