COVID-19

SARS-CoV-2 Variant Classifications and Definitions Key Points: Genetic variants of SARS-CoV-2 have been emerging and circulating around the world throughout the COVID-19 pandemic. Viral mutations and variants in the United States are routinely monitored through sequence-based surveillance, laboratory studies, and epidemiological investigations. A US government interagency group developed a Variant Classification scheme that defines three

The accumulation of genetic mutations is a normal part of viral evolution. Mutations change the sequence of the viral genome, creating different ‘variants.’ While some mutations might be silent, with no visible clinical effect, others might have implications for disease transmission, severity, reinfection potential, and immunity. SARS-CoV-2 variants A recently described clinically significant mutation has

ToolsWebinar_Flyer_Effectiveness of Masks for COVID-19 Protection   Despite widespread adoption of face mask use for personal protection and to help stop the spread of COVID-19, there is little or no public information available on the performance and efficacy of different types of masks or modifications on existing face coverings. Important questions, such as which type

https://youtu.be/es2nvGVPJ9U

Report-1_COG-UK_19-December-2020_SARS-CoV-2-Mutations

https://youtu.be/35Idb_lCU4o

Testing-GuidanceDownload

EPA-Water-Research-Webinar-FLYER_30Sep20Download

https://www.youtube.com/watch?v=NOK6drNPNck