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2. Symptoms of COVID-19 - Wikipedia

   en.wikipedia.org/wiki/Symptoms_of_COVID-19

   As of September 2020, it was unclear whether these symptoms were due to direct infection of brain cells, or of overstimulation of the immune system. [ 63 ] A June 2020 systematic review reported a 6–16% prevalence of vertigo or dizziness , 7–15% for confusion, and 0–2% for ataxia .

3. These Are the 2 Most Common COVID Symptoms Doctors Are ... - AOL

   www.aol.com/2-most-common-covid-symptoms...

   A 2022 U.K. study that gathered self-reported data on COVID-19 symptoms via smartphone apps indicated that a sore throat became a more prevalent sign when Omicron's dominance rose in 2021 ...

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. SARS-CoV-2 Omicron variant - Wikipedia

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

   In May 2022, a preprint indicated Omicron subvariants BA.4 and BA.5 could cause a large share of COVID-19 reinfections, beyond the increase of reinfections caused by the Omicron lineage, even for people who were infected by Omicron BA.1 due to increases in immune evasion, especially for the unvaccinated. However, the observed escape of BA.4 and ...

6. COVID variant HV.1 is still spreading. These are its most ...

   www.aol.com/news/covid-variant-hv-1-now...

   The new boosters have been reformulated to target omicron XBB.1.5, which was the dominant COVID variant for most of 2023. While XBB.1.5 has since been overtaken by HV.1 and other variants, it is ...

7. US study finds 1 in 10 get long COVID after omicron, starts ...

   www.aol.com/us-study-finds-1-10-140000029.html

   WASHINGTON (AP) — About 10% of people appear to suffer long COVID after an omicron infection, a lower estimate than earlier in the pandemic, according to a study of nearly 10,000 Americans that ...

8. Portal:COVID-19 - Wikipedia

   en.wikipedia.org/wiki/Portal:COVID-19

   A COVID‑19 vaccine is a vaccine intended to provide acquired immunity against severe acute respiratory syndrome coronavirus 2 , the virus that causes coronavirus disease 2019 . The COVID‑19 vaccines are widely credited for their role in reducing the spread of COVID‑19 and reducing the severity and death caused by COVID‑19.

9. New XEC COVID variant is on the rise. What are its symptoms ...

   www.aol.com/news/xec-covid-variant-rise-symptoms...

   The timing and severity of COVID-19 surges is difficult to predict, says Pekosz, but he speculates that there's a chance this winter wave may come later or not be as big as last year's due to the ...