Methods| Regulatory review with waiver of consent was completed by Cedars-Sinai Medical
Center (CSMC). From all samples from symptomatic inpatients and ambulatory care (urgent …

In this issue of JAMA, Zhang and colleagues1 report the emergence of a novel severe acute
respiratory syndrome coronavirus 2 (SARS-CoV-2) variant in Southern California that …

On January 10, 2020, the first genomic sequence of the severe acute respiratory syndrome
coronavirus 2 (SARS-CoV-2) isolated from a patient in Wuhan, China, was posted online. As …

CDC's genomic surveillance for SARS-CoV-2 variants generates population-based
estimates of the proportions of variants among all SARS-CoV-2 infections in the United …

Background SARS-CoV-2 is an enveloped, positive-sense single-stranded RNA virus with a
30-kilobase genome, which, like all viruses, accumulates nucleotide mutations over time …

The rapid spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has
gravely affected societies around the world. Outbreaks in different parts of the globe have …

Recent months have seen surges of SARS-CoV-2 infection across the globe along with
considerable viral evolution. Extensive mutations in the spike protein of variants B. 1.1. 7 …

Methods| We retrospectively identified all SARS-CoV-2 cases diagnosed in 12 hospitals
within the Mass General Brigham health care system between July 1, 2020, and February …

The emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants
with concerning phenotypic mutations is of public health interest. Genomic surveillance is an …

Recent reports suggest that some SARS-CoV-2 genetic variants, such as B. 1.1. 7, might be
more transmissible and are quickly spreading around the world. As the emergence of more …