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  1. Severe acute respiratory syndrome coronavirus 2 ( SARS‑CoV‑2) is a strain of coronavirus that causes COVID-19 (coronavirus disease 2019), the respiratory illness responsible for the ongoing COVID-19 pandemic. The virus previously had a provisional name, 2019 novel coronavirus ( 2019-nCoV ), and has also been called human coronavirus 2019 ...

  2. Mar 24, 2022 · Everyone who has symptoms that are consistent with COVID-19 and people with known high-risk exposures to SARS-CoV-2 should be tested for SARS-CoV-2 infection. Such testing should employ either a nucleic acid amplification test (NAAT) or an antigen test to detect SARS-CoV-2. Testing may also be used for screening, determining the length of a ...

    • Sars-Cov-2 Is Transmitted by Exposure to Infectious Respiratory Fluids
    • Prevention of Covid-19 Transmission
    • References

    The principal mode by which people are infected with SARS-CoV-2 (the virus that causes COVID-19) is through exposure to respiratory fluids carrying infectious virus. Exposure occurs in three principal ways: (1) inhalation of very fine respiratory droplets and aerosol particles, (2) deposition of respiratory droplets and particles on exposed mucous ...

    The infectious dose of SARS-CoV-2 needed to transmit infection has not been established. Current evidence strongly suggests transmission from contaminated surfaces does not contribute substantially to new infections. Although animal studies22-24 and epidemiologic investigations25 (in addition to those described above) indicate that inhalation of vi...

    Stadnytskyi V, Bax CE, Bax A, Anfinrud P. The airborne lifetime of small speech droplets and their potential importance in SARS-CoV-2 transmission. Proc Natl Acad Sci U S A. Jun 2 2020;117(22):1187...
    Alsved M, Matamis A, Bohlin R, et al. Exhaled respiratory particles during singing and talking. Aerosol Science and Technology. 2020;54(11):1245-1248. doi:10.1080/02786826.2020.1812502
    Echternach M, Gantner S, Peters G, et al. Impulse Dispersion of Aerosols during Singing and Speaking: A Potential COVID-19 Transmission Pathway. Am J Respir Crit Care Med. Dec 1 2020;202(11):1584-1...
    Asadi S, Wexler AS, Cappa CD, Barreda S, Bouvier NM, Ristenpart WD. Aerosol emission and superemission during human speech increase with voice loudness. Sci Rep. Feb 20 2019;9(1):2348. doi:10.1038/...
  3. Mar 15, 2020 · An ongoing outbreak of pneumonia caused by a novel coronavirus, currently designated as the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), was reported recently. However, as SARS-CoV-2 is an emerging virus, we know little about it. In this review, we summarize the key events occurred during the early stage of SARS-CoV-2 outbreak ...

    • Jun Zheng
    • 2020
  4. Feb 11, 2020 · Point-of care serial screening testing can provide rapid results and is critical to identifying people with COVID-19 who do not have symptoms and slowing the spread of SARS-CoV-2. This is especially important when the COVID-19 Community Level is high. When selecting which SARS-CoV-2 test to use and interpreting results, healthcare providers ...

  5. Jul 09, 2020 · Transmission of SARS-CoV-2 can occur through direct, indirect, or close contact with infected people through infected secretions such as saliva and respiratory secretions or their respiratory droplets, which are expelled when an infected person coughs, sneezes, talks or sings. (2-10) Respiratory droplets are >5-10 μm in diameter whereas ...

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