Incubation period of coronavirus disease 2019: new implications for intervention and control.
Int J Environ Health Res
; 32(8): 1707-1715, 2022 Aug.
Article
in English
| MEDLINE | ID: covidwho-1165122
ABSTRACT
The COVID-19 pandemic has been causing serious disasters to mankind. The incubation period is a key parameter for epidemic control and also an important basis for epidemic prediction, but its distribution law remains unclear. This paper analyzed the epidemiological information of 787 confirmed non-Wuhan resident cases, and systematically studied the characteristics of the incubation period of COVID-19 based on the interval-censored data estimation method. The results show that the incubation period of COVID-19 approximately conforms to the Gamma distribution with a mean value of 7.8 (95%CI7.4-8.5) days and a median value of 7.0 (95%CI6.7-7.3) days. The incubation period was positively correlated with age and negatively correlated with disease severity. Female cases presented a slightly higher incubation period than that of males. The proportion of infected persons who developed symptoms within 14 days was 91.6%. These results are of great significance to the prevention and control of the COVID-19 pandemic.
Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
COVID-19
Type of study:
Experimental Studies
/
Observational study
/
Prognostic study
Limits:
Female
/
Humans
/
Male
Country/Region as subject:
Asia
Language:
English
Journal:
Int J Environ Health Res
Journal subject:
Environmental Health
Year:
2022
Document Type:
Article
Affiliation country:
09603123.2021.1905781
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