Abstract
Epidemiological Characteristics of Varicella in Yunyang County, Chongqing from 2013 to 2017
Highlights
Varicella is a highly contagious acute respiratory disease caused by varicella zoster virus, and mainly composed of unilateral clustered varicella herpes [1]
The data of varicella cases were from China Information System for Diseases Prevention and Control, and data of varicella outbreaks were from National Management Information System for Public Health Emergency
More than 10 cases of varicella reported in one school or kindergarten within one week were regarded as varicella outbreak, which meets the criterion of reporting to National Management Information System for Public Health Emergency and inputting on Public Health Information System for National Monitoring Infectious Diseases [3]
Summary
Varicella is a highly contagious acute respiratory disease caused by varicella zoster virus, and mainly composed of unilateral clustered varicella herpes [1]. The source of infection of varicella is patients with varicella and zoster virus, and the routes of transmission are air droplet, direct contact, rash rupture, mother-infant vertical transmission, etc. Human beings are susceptible to varicella and will get certain immunity after being recovered. Those antibodies fail to eliminate varicella zoster virus in ganglion of spinal dorsal root, so some patients may relapse with zoster virus [2,3]. The incidence of varicella among children has increased in recent year by year in China, which cause social and economic loss, and lead to some public health issues
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