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Epidemiology of SARS-CoV-2
Bernd Salzberger1, Felix Buder2, Benedikt Lampl3
1Abt. Krankenhaushygiene Und Infektiologie, Universitätsklinikum Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany. Bernd.salzberger@ukr.de.
Infection
|October 9, 2020
Summary
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spreads via droplets and aerosols, with a low fatality rate of 0.5-1%. Effective control measures kept attack rates low globally.
Area of Science:
- Virology
- Epidemiology
- Public Health
Background:
- Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a novel beta-coronavirus.
- Understanding its epidemiologic features is crucial for public health response.
Purpose of the Study:
- To present current knowledge on the epidemiologic features of SARS-CoV-2.
- To analyze transmission, incubation period, and fatality rates.
Main Methods:
- Non-systematic review of existing literature.
- Analysis of consensus estimates for key epidemiologic parameters.
Main Results:
- SARS-CoV-2 transmits via droplets and aerosols, with a basic reproduction number (R0) of 2-3 and a median incubation of 5.7 days.
- The infection fatality rate is estimated at 0.5-1%; risk factors for severe disease include older age and comorbidities.
- Social distancing measures led to rapid reductions in transmission, though the effectiveness of specific interventions remains unclear.
Conclusions:
- Despite rapid global spread, SARS-CoV-2 attack rates were low in most regions.
- Implemented control measures, such as social distancing, demonstrated efficacy in mitigating widespread outbreaks.
Keywords:
Basic reproduction numberCOVID-19EpidemiologyIncubation periodInfection fatality riskMortalityPandemicSARS-CoV-2More Related Videos
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