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The number of analyzed sequences in the preceding two weeks that correspond to each variant group. This number may not reflect the complete breakdown of cases since only a fraction of all cases are sequenced.
Variants of severe acute respiratory syndrome coronavirus 2 ( SARS-CoV-2) are viruses that, while similar to the original, have genetic changes that are of enough significance to lead virologists to label them separately. SARS-CoV-2 is the virus that causes coronavirus disease 2019 (COVID-19).
Sep 1, 2023 · The World Health Organization (WHO) names new coronavirus variants using the letters of the Greek alphabet, starting with the Alpha variant, which emerged in 2020. Below is a list of—and information about—some of the variants that have been top-of-mind.
- kathy.katella-cofrancesco@yale.edu
Jan 28, 2021 · Here are some of the most important changes that Covid-19 has undergone so far, including what we know about the B117, B1351 and P1 variants. The super shedder. The mutation that allowed furin...
- When Does Who Designate A Variant of Concern?
- What Can We Do as Individuals to Stop The Virus circulating?
- What Can Governments and Authorities do?
- What Is Who Doing in Response to Omicron?
an increase in transmissibility or detrimental change in COVID-19 epidemiology;an increase in virulence or change in clinical disease presentation;a decrease in effectiveness of public health and social measures or available diagnostics, vaccines and therapeutics.Getting vaccinated to be protected from severe illness and death – a new study estimates that 470 000 lives have been saved among those aged 60 years and over since the start of COVID-19 vaccinatio...Combining vaccination with other protective measures as a matter of routine to further reduce our risk of exposure and prevent ourselves from passing the virus on to others – including:continuing to vaccinate, targeting those most at risk, including with booster doses for eligible groups;increasing adherence of all individuals to protective measures;putting in place social measures to prevent crowding and people gathering in confined spaces;activating and prioritizing case investigation and contact tracing for any COVID-19 cases, including Omicron;identify implications for the European Regionadjust recommendations to potential scenarioscollect data from Member States on cases of B.1.1.529 (Omicron)develop key messages for public communications.May 20, 2021 · Since their first detection in October 2020, there have been reports of these variants in countries throughout the world, with the largest number of cases detected in India, followed by the United Kingdom (where the sub-lineage B.1.617.2 has been designated a national variant of concern).”Are we likely to see many more variants? Is this ...
Aug 19, 2021 · A WHO variant of concern now dominant in Europe and the US, delta continues to drive a steep rise in cases throughout much of Asia including Bangladesh, Iran, Iraq, Japan, Kazakhstan, Malaysia, Myanmar, Pakistan, South Korea, Thailand, and Vietnam, 14 as well as in India, where it was first identified in October 2020.
