Patterns of Virus Exposure and Presumed Household Transmission among Persons with Coronavirus Disease, United States, January-April 2020
EMERGING INFECTIOUS DISEASES(2021)
摘要
We characterized common exposures reported by a convenience sample of 202 US patients with coronavirus disease during January-April 2020 and identified factors associated with presumed household transmission. The most commonly reported settings of known exposure were households and healthcare facilities; among case-patients who had known contact with a confirmed case-patient compared with those who did not, healthcare occupations were more common. Among case-patients without known contact, use of public transportation was more common. Within the household, presumed transmission was highest from older (>= 65 years) index case-patients and from children to parents, independent of index case-patient age. These findings may inform guidance for limiting transmission and emphasize the value of testing to identify community-acquired infections.
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关键词
2019 novel coronavirus disease,COVID-19,SARS-CoV-2,United States,coronavirus disease,household transmission,respiratory infections,severe acute respiratory syndrome coronavirus 2,viruses,zoonoses
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