[The investigation on the incidence of varicella in Shandong, Gansu and Hunan Provinces in 2007].
OBJECTIVE
To analyse the incidence character of varicella in Shandong, Gansu and Hunan provinces in 2007.


METHODS
One township of rural area and one community of urban area were selected from Shandong, Gansu and Hunan each province for sampling. 34578 children were sampled and 1213 clinical diagnostic cases were confirmed.


RESULTS
The incidence of 0-14 ys was 1836.72/100,000 and the estimated incidence of entire population was 357.95/100,000. The peak age of incidence was 5-9 age group children.


CONCLUSIONS
The incidence of varicella in China was high and the incidence was different between areas or ages.
Yin
Da-Peng
DP
National Immunization Programme, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
Song
Li-Zhi
LZ
Zhang
Xiao-Shu
XS
D000293:Adolescent; D017677:Age Distribution; D002644:Chickenpox / Q000453:epidemiology* / Q000821:virology; D002648:Child; D002675:Child, Preschool; D002681:China / Q000453:epidemiology; D005260:Female; D006801:Humans; D015994:Incidence; D007223:Infant; D007231:Infant, Newborn; D008297:Male