Monday, March 01, 2021

CDC: COVID Variant Map Update (Feb 28th)


 

#15,840

Overnight the CDC updated their COVID Variant map, and once again Florida leads the nation with 599 B1.1.7 (25% of national total), and half (n=5) of all reported P.1 variants. Michigan comes in second with 429 B.1.17 variants, and California 3rd with 206 B1.1.17 and 3 B.1.351 variants. 

Despite reports suggesting that other variants detected in New York (B.1.526) and in California (B.1.427/B.1.429) (see CIDRAP's New COVID-19 variants found in New York, California) may be of equal concern, the CDC updates continue for now to focus on the `three international' variants of greatest concern.
  • B.1.1.7 aka `UK' variant 
  • B.1.351 aka `South African' variant
  • P.1 ak `Brazilian' variant
The reality is, many states are doing very little genomic testing, so the numbers reported by the CDC should be assumed to represent a tiny fraction of actual cases in the population.



Download Accessible Data excel icon[CSV – 669 KB]

The emerging variants CDC is closely monitoring have mutations in the virus genome that alter the characteristics and cause the virus to act differently in ways that are significant to public health (e.g., causes more severe disease, spreads more easily between humans, requires different treatments, changes the effectiveness of current vaccines). It’s important to understand that genetic mutations are expected, and some variants can spread and become predominant while others subside.

02/11/21 – To maintain a limited number of colors and allow for an easier comparison between states, the data ranges have changed from 1-50 to 1-100.

*The cases identified above are based on a sampling of SARS-CoV-2-positive specimens and do not represent the total number of B.1.1.7, B.1.351, and P.1 lineage cases that may be circulating in the United States and may not match numbers reported by states, territories, tribes, and local officials.

†Numbers will be updated on Sunday, Tuesday, and Thursday by 7:00 pm.


Learn more about Genomic Surveillance for SARS-CoV-2 Variants.