학술논문

Patterns of Virus Exposure and Presumed Household Transmission among Persons with Coronavirus Disease, United States, January--April 2020
Document Type
Report
Source
Emerging Infectious Diseases. September 2021, Vol. 27 Issue 9, p2323, 10 p.
Subject
United States
Language
English
ISSN
1080-6040
Abstract
Coronavirus disease (COVID-19) was first identified in Wuhan, China, in December 2019 (1). The first reported case in the United States was identified in January 2020 (2); by mid-March, cases [...]