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- Title
Characteristics of within-household varicella transmission events associated with school outbreaks in Shanghai, China, 2009–2018.
- Authors
Yuan-Fang Chen; Qi Zhou; Jing-Yi Liu; Rui-Jie Gong; Shu-Qian Mao; Zhuo-Jun Ye; Qiang-Song Wu
- Abstract
Transmission of varicella occurs frequently in schools and households. We investigated the characteristics of varicella cases derived from within-household transmission and the modes of varicella transmission between school and household settings in Shanghai, China, from 2009 to 2018. Within-household transmission occurred in 278 households, of which 134 transmission events were between children. Sixty-one household varicella transmission events may be attributed to isolation procedures for infected students during school outbreaks, and 7.6% of school outbreaks were caused by schoolchildren cases derived from within-house- hold transmission. The frequency of ‘school-household-school’ transmission adds an add- itional layer of complexity to the control of school varicella outbreaks. Administration of varicella vaccine as post-exposure prophylaxis after exposure is considered to be an effective measure to control varicella spread within households and schools.
- Publication
Epidemiology & Infection, 2020, Vol 148, p1
- ISSN
0950-2688
- Publication type
Article
- DOI
10.1017/S0950268820000448