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  2. SARS-CoV-2 Delta variant - Wikipedia

    en.wikipedia.org/wiki/SARS-CoV-2_Delta_variant

    The Delta variant (B.1.617.2) was [3] [4] a variant of SARS-CoV-2, the virus that causes COVID-19. It was first detected in India on 5 October 2020. The Delta variant was named on 31 May 2021 and had spread to over 179 countries by 22 November 2021.

  3. Variants of SARS-CoV-2 - Wikipedia

    en.wikipedia.org/wiki/Variants_of_SARS-CoV-2

    A study of samples collected in Manaus between November 2020 and January 2021, indicated that the Gamma variant is 1.4–2.2 times more transmissible and was shown to be capable of evading 25–61% of inherited immunity from previous coronavirus diseases, leading to the possibility of reinfection after recovery from an earlier COVID-19 ...

  4. Deltacoronavirus - Wikipedia

    en.wikipedia.org/wiki/Deltacoronavirus

    Deltacoronavirus (Delta-CoV) is one of the four genera (Alpha-, Beta-, Gamma-, and Delta-) of coronaviruses. It is in the subfamily Orthocoronavirinae of the family Coronaviridae. They are enveloped, positive-sense, single-stranded RNA viruses. Deltacoronaviruses infect mostly birds and some mammals.

  5. Explainer-Beyond Delta, scientists are watching new ... - AOL

    www.aol.com/news/explainer-beyond-delta...

    The continued spread of the SARS-CoV-2 virus has spawned a Greek alphabet of variants - a naming system used by the World Health Organization to track concerning new mutations of the virus that ...

  6. Ask an Infectious-Disease Doctor: What Is the Delta Variant ...

    www.aol.com/news/ask-infectious-disease-doctor...

    In the U.S., COVID-19 hospitalizations and deaths are overall significantly lower, but there are hot spots of surging infections attributable to the Delta variant.

  7. How the Delta variant upends assumptions about the coronavirus

    www.aol.com/delta-variant-upends-assumptions...

    The Delta variant is the fastest, fittest and most formidable version of the coronavirus that causes COVID-19 the world has encountered, and it is upending assumptions about the disease even as ...

  8. Coronavirus diseases - Wikipedia

    en.wikipedia.org/wiki/Coronavirus_diseases

    Coronavirus diseases are caused by viruses in the coronavirus subfamily, a group of related RNA viruses that cause diseases in mammals and birds. In humans and birds, the group of viruses cause respiratory tract infections that can range from mild to lethal.

  9. SARS-related coronavirus - Wikipedia

    en.wikipedia.org/wiki/SARS-related_coronavirus

    SARS-related coronavirus is a member of the genus Betacoronavirus (group 2) and monotypic of the subgenus Sarbecovirus (subgroup B). [13] Sarbecoviruses, unlike embecoviruses or alphacoronaviruses, have only one papain-like proteinase (PLpro) instead of two in the open reading frame ORF1ab. [14]

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    related to: difference between delta and del coronavirus disease definition biology