DHS and Laboratory Partners Identify Variant Strain B.1.1.7 of SARS-CoV-2 in Wisconsin
On January 12, the Wisconsin Department of Health Services and laboratory partners identified a variant strain of SARS-CoV-2, the virus that causes COVID-19, in Wisconsin.
The particular variant, referred to as B.1.1.7, was first discovered circulating widely in England during November and December of 2020. Based on epidemiologic and modeling studies, researchers believe that this new strain spreads more rapidly and easily than the original strain of SARS-CoV-2. However, there is no evidence that the new strain causes more severe illness or increased risk of death.
“We already know that COVID-19 is easily transmitted through respiratory droplets, and with this new variant appearing to be even more infectious, taking preventative measures like wearing a mask and physically distancing are even more important,” said DHS Secretary-designee Andrea Palm.
“Mutations among viruses are very common. It’s not unusual – in fact, it’s expected. As time goes on in the pandemic and the virus continues to replicate on a large scale, the genetic sequence of the virus will change,” said Chief Medical Officer Dr. Ryan Westergaard.
DHS, the Wisconsin State Laboratory of Hygiene, and other laboratory partners regularly work together to ensure whole genome sequencing is performed on a small proportion of tests collected. This routine analysis of genetic sequence data assisted in identifying the new variant strain in Wisconsin.
Now in the second year of the COVID-19 pandemic, molecular surveillance of SARS-CoV-2 will increase in importance to quickly identify and understand new variants. DHS and laboratory partners continue to analyze genetic sequence data to stop the spread of COVID-19. With emerging mutations of SARS-CoV-2, and those that may be more infectious, it is critically important to follow best public health practices, including wearing a mask, staying home, maintaining physical distance, and washing hands frequently.
For up-to-date information about Wisconsin’s COVID-19 response, visit the DHS COVID-19 webpage. We encourage you to follow @DHSWI on Facebook(link is external), Twitter(link is external), or dhs.wi on Instagram(link is external) for more information on COVID-19.
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