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  2. The major COVID variants we've seen so far and which one to ...

    www.aol.com/news/major-covid-variants-weve-seen...

    The COVID-19 pandemic was the third leading cause of death globally in 2020 and the second in 2021, according to a recent World Health Organization report.The almost 13 million lives lost during ...

  3. SARS-CoV-2 - Wikipedia

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

    Research into the natural reservoir of the virus that caused the 2002–2004 SARS outbreak has resulted in the discovery of many SARS-like bat coronaviruses, most originating in horseshoe bats. The closest match by far, published in Nature (journal) in February 2022, were viruses BANAL-52 (96.8% resemblance to SARS‑CoV‑2), BANAL-103 and ...

  4. COVID-19 pandemic - Wikipedia

    en.wikipedia.org/wiki/COVID-19_pandemic

    A COVID-19 vaccine is intended to provide acquired immunity against severe acute respiratory syndrome coronavirus 2 (SARS‑CoV‑2), the virus that causes coronavirus disease 2019 . Prior to the COVID-19 pandemic, an established body of knowledge existed about the structure and function of coronaviruses causing diseases like severe acute ...

  5. Emergency department visits for flu and the respiratory syncytial virus, or RSV, are very high. While Covid-19 cases leading to emergency department visits are still low, they are increasing, with ...

  6. Coronavirus - Wikipedia

    en.wikipedia.org/wiki/Coronavirus

    Porcine epidemic diarrhea virus (PEDV) is a coronavirus that has recently emerged and similarly causes diarrhea in pigs. [135] Transmissible gastroenteritis virus (TGEV), which is a member of the species Alphacoronavirus 1, [136] is another coronavirus that causes diarrhea in young pigs.

  7. What virus is going around? The flu, COVID, norovirus - AOL

    www.aol.com/news/virus-going-around-flu-covid...

    COVID, flu and norovirus on the rise, CDC says. The level of the virus that causes COVID-19 is up in wastewater, too, according to the CDC's National Wastewater Surveillance System.That viral ...

  8. A look back: Key moments from the first months of COVID-19 - AOL

    www.aol.com/news/look-back-key-moments-first...

    A morning aerial photo taken on March 30, 2020 shows deserted streets and the Colosseum monument in Rome during the country's lockdown aimed at curbing the spread of the COVID-19 infection, caused ...

  9. SARS-CoV-2 Iota variant - Wikipedia

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

    Iota variant, [1] also known as lineage B.1.526, is one of the variants of SARS-CoV-2, the virus that causes COVID-19. It was first detected in New York City in November 2020. The variant has appeared with two notable mutations: the E484K spike mutation, which may help the virus evade antibodies, and the S477N mutation, which helps the virus ...