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  1. Nov 12, 2020 · Numerous observational studies have attempted to identify risk factors for infection with SARS-CoV-2 and COVID-19 disease outcomes. Studies have used datasets sampled from patients...

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  2. May 7, 2020 · In a Bloomberg Opinion article, the infectious diseases experts outline five key variables that can influence the severity of COVID-19 illness: Microbial dosage: Infection by a small number of viral particles may manifest in an asymptomatic or mild illness, while a large quantity of particles is likely to do more damage to the immune system ...

  3. Jun 7, 2023 · The Office of the Director of National Intelligence released the “Declassified Assessment on COVID-19 Origins,” finding that the evidence to support either of the two plausible theories was...

  4. Dec 2, 2021 · In this systematic review, the first in the current literature according to our knowledge, we analyzed all available data on the possible transmission routes of COVID-19.

    • Panagiotis Mourmouris, Lazaros Tzelves, Christiana Roidi, Anastasia Fotsali
    • 10.24171/j.phrp.2021.12.2.02
    • 2021
    • 2021/04
  5. Feb 16, 2023 · Several distinct pathological mechanisms, not active in every patient, determine health outcomes in the three different phases of COVID-19—from the initial viral replication phase to...

  6. Jun 22, 2023 · By Mayo Clinic Staff. Most people who get coronavirus disease 2019 (COVID-19) recover within a few weeks. But some people — even those who had mild versions of the disease — might have symptoms that last a long time afterward. These ongoing health problems are sometimes called post- COVID-19 syndrome, post- COVID conditions, long COVID-19 ...

  7. Mar 27, 2024 · Most people with COVID-19 have mild to moderate symptoms. But COVID-19 can cause serious medical complications and lead to death. Older adults or people who already have medical conditions are at greater risk of serious illness. COVID-19 may be a mild, moderate, severe or critical illness.

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