Skip to main content
Fig. 6 | BMC Infectious Diseases

Fig. 6

From: Identification of SARS-CoV-2 variants using viral sequencing for the Centers for Disease Control and Prevention genomic surveillance program

Fig. 6

Trends in evolution of CDC designated variants of concern in our dataset from April 2021 to February 2022. a A total of 161 lineages of the SARS-CoV-2 variants were detected in the study from April 2021 to June 2021. The prevalence by percent total samples tested are indicated by each data point for the month through February 2022. The top 3 variants of concern by percent of total samples processed are depicted above. b Phylogenetic analysis shows the prevalence of variants as a % of positive samples sequenced in January of 2022 to March of 2022. Omicron lineage BA.16 in January 2022 accounted for ~ 61% of positive samples sequenced, where is in March of 2022 99% of all variants detected were lineages of Omicron (BA.1, BA.1.1, and BA.2)

Back to article page

BMC Infectious Diseases

ISSN: 1471-2334

Contact us