Asymptomatic and pre-symptomatic infection in Coronavirus Disease 2019 pandemic
Abstract: With the presence of Coronavirus Disease 2019 (COVID-19) asymptomatic infections detected, their proportion, transmission potential, and other aspects such as immunity and related emerging challenges have attracted people’s attention. We have found that based on high-quality research, asymptomatic infections account for at least one-third of the total cases, whereas based on systematic review and meta-analysis, the proportion is about one-fifth. Evaluating the true transmission potential of asymptomatic cases is difficult but critical, since it may affect national policies in response to COVID-19. We have summarized the current evidence and found, compared with symptomatic cases, the transmission capacity of asymptomatic individuals is weaker, even though they have similar viral load and relatively short virus shedding duration. As the outbreak progresses, asymptomatic infections have also been found to develop long COVID-19. In addition, the role of asymptomatic infection in COVID-19 remains to be further revealed as the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants continue to emerge. Nevertheless, as asymptomatic infections transmit the SARS-CoV-2 virus silently, they still pose a substantial threat to public health. Therefore, it is essential to conduct screening to obtain more knowledge about the asymptomatic infections and to detect them as soon as possible; meanwhile, management of them is also a key point in the fight against COVID-19 community transmission. The different management of asymptomatic infections in various countries are compared and the experience in China is displayed in detail.
- Location
-
Deutsche Nationalbibliothek Frankfurt am Main
- Extent
-
Online-Ressource
- Language
-
Englisch
- Bibliographic citation
-
Asymptomatic and pre-symptomatic infection in Coronavirus Disease 2019 pandemic ; volume:2 ; number:1 ; year:2022 ; pages:66-88 ; extent:023
Medical Review ; 2, Heft 1 (2022), 66-88 (gesamt 023)
- Creator
-
Wang, Yutong
Zheng, Ke
Gao, Wenjing
Lv, Jun
Yu, Canqing
Wang, Lan
Wang, Zijun
Wang, Bo
Liao, Chunxiao
Li, Liming
- DOI
-
10.1515/mr-2021-0034
- URN
-
urn:nbn:de:101:1-2022101314283269747719
- Rights
-
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
- 15.08.2025, 7:25 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Wang, Yutong
- Zheng, Ke
- Gao, Wenjing
- Lv, Jun
- Yu, Canqing
- Wang, Lan
- Wang, Zijun
- Wang, Bo
- Liao, Chunxiao
- Li, Liming
Other Objects (12)
Cold-chain transmission, asymptomatic infection, mass screening, vaccine, and modelling: what we know so far for coronavirus disease 2019 control and experience in China
Asymptomatic and Pre-Symptomatic COVID-19 in China
Norovirus shedding among symptomatic and asymptomatic employees in outbreak settings in Shanghai, China
A survey of core and support activities of communicable disease surveillance systems at operating-level CDCs in China
Obstacle avoidance planning of space manipulator end-effector based on improved ant colony algorithm
Urban virtual environment landscape design and system based on PSO-BP neural network
Remaining Useful Life Estimation of Aircraft Engines Based on Deep Convolution Neural Network and LightGBM Combination Model
Coproduction and enhancement of electricity and biobutanol using adsorption carrier solid-state fermentation
Epithelioid hemangioendothelioma of the right atrium invaded the superior vena cava: case report and review of literature
Numerical Simulation of Present-day Kinematics at the Northeastern Margin of the Tibetan Plateau
Reverse Channel Design: Profitability vs. Environmental Benefits
Characterization of the rice NLA family reveals a key role for OsNLA1 in phosphate homeostasis
Cold-chain transmission, asymptomatic infection, mass screening, vaccine, and modelling: what we know so far for coronavirus disease 2019 control and experience in China
Asymptomatic and Pre-Symptomatic COVID-19 in China
Norovirus shedding among symptomatic and asymptomatic employees in outbreak settings in Shanghai, China
A survey of core and support activities of communicable disease surveillance systems at operating-level CDCs in China
Obstacle avoidance planning of space manipulator end-effector based on improved ant colony algorithm
Urban virtual environment landscape design and system based on PSO-BP neural network
Remaining Useful Life Estimation of Aircraft Engines Based on Deep Convolution Neural Network and LightGBM Combination Model
Coproduction and enhancement of electricity and biobutanol using adsorption carrier solid-state fermentation
Epithelioid hemangioendothelioma of the right atrium invaded the superior vena cava: case report and review of literature
Numerical Simulation of Present-day Kinematics at the Northeastern Margin of the Tibetan Plateau
Reverse Channel Design: Profitability vs. Environmental Benefits
Characterization of the rice NLA family reveals a key role for OsNLA1 in phosphate homeostasis
Cold-chain transmission, asymptomatic infection, mass screening, vaccine, and modelling: what we know so far for coronavirus disease 2019 control and experience in China
Asymptomatic and Pre-Symptomatic COVID-19 in China
Norovirus shedding among symptomatic and asymptomatic employees in outbreak settings in Shanghai, China
A survey of core and support activities of communicable disease surveillance systems at operating-level CDCs in China
Obstacle avoidance planning of space manipulator end-effector based on improved ant colony algorithm
Urban virtual environment landscape design and system based on PSO-BP neural network
Remaining Useful Life Estimation of Aircraft Engines Based on Deep Convolution Neural Network and LightGBM Combination Model
Coproduction and enhancement of electricity and biobutanol using adsorption carrier solid-state fermentation
Epithelioid hemangioendothelioma of the right atrium invaded the superior vena cava: case report and review of literature
Numerical Simulation of Present-day Kinematics at the Northeastern Margin of the Tibetan Plateau
Reverse Channel Design: Profitability vs. Environmental Benefits