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Analysis of epidemiological trend and spatial aggregation characteristics from 2016 to 2023 of varicella in Shaanxi Province
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Ni ZHU, Guojing YANG, Shu WANG, Xinxin LI*
Chinese Journal of School Health | 2025, 46(2) : 272 - 275
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收藏切换
Chinese Journal of School Health | 2025, 46(2): 272-275
• Disease Control •
Analysis of epidemiological trend and spatial aggregation characteristics from 2016 to 2023 of varicella in Shaanxi Province
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Ni ZHU, Guojing YANG, Shu WANG, Xinxin LI*
Affiliations
  • Infectious Disease Prevention and Control Institute, Shaanxi Provincial Center for Disease Control and Prevention, Xi'an (710054), Shaanxi Province, China
Published: 2025-02-25 doi: 10.16835/j.cnki.1000-9817.2025049
Outline
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Objective

To grasp the distribution characteristics and incidence trend of varicella in Shaanxi Province, so as to provide a reference for scientific and accurate prevention and control strategies.

Methods

Data of 161 377 varicella cases in Shaanxi Province from 2016 to 2023 were collected and described from Surveillance Report Management System, a subsystem of National Disease Control and Prevention Information Systems of Chinese Center for Disease Control and Prevention. FlexScan 3.1.2 software was used to determine irregular spatial clustering, and spatial clustering area was detected for each year.

Results

The incidence of varicella in Shaanxi Province showed a seasonal bimodal distribution with peaks from April to July (36.68%) and from October to next January (48.07%). The cases were mainly concentrated in the 3-12 years old group (60.50%), and there was a trend of high incidence age shift within the 0-19 age group from 2021. Most of the cases were students (62.40%) and preschool children (17.78%). The outbreaks mainly occurred in primary schools (76.47%). The regional distribution was mainly concentrated in some areas of southern Shaanxi and Guanzhong. Through spatial analysis, the primary clusters were primarily concentrated in Ankang and Hanzhong cities in southern Shaanxi from 2016 to 2023, and the secondary clusters were mainly found in some areas of Guanzhong (Xi'an, Baoji and Weinan cities).

Conclusions

Prevention and control of varicella should be focused on students and kindergartens aged 3-12 years in southern and Guanzhong areas of Shaanxi Province. Continuous varicella surveillance and vaccination measures should be carried out, and the two-dose vaccination strategy and intensive vaccination of key groups should be actively promoted.

Chickenpox  /  Disease outbreaks  /  Incidence  /  Epidemiologic studies
朱妮, 杨国婧, 王舒, 李欣欣. 陕西省2016—2023年水痘流行趋势与空间聚集特征分析. 中国学校卫生, 2025 , 46 (2) : 272 -275 . DOI: 10.16835/j.cnki.1000-9817.2025049
Ni ZHU, Guojing YANG, Shu WANG, Xinxin LI. Analysis of epidemiological trend and spatial aggregation characteristics from 2016 to 2023 of varicella in Shaanxi Province[J]. Chinese Journal of School Health, 2025 , 46 (2) : 272 -275 . DOI: 10.16835/j.cnki.1000-9817.2025049
Year 2025 volume 46 Issue 2
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doi: 10.16835/j.cnki.1000-9817.2025049
  • Receive Date:2024-11-04
  • Online Date:2026-11-06
  • Published:2025-02-25
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  • Received:2024-11-04
  • Revised:2024-12-11
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    Infectious Disease Prevention and Control Institute, Shaanxi Provincial Center for Disease Control and Prevention, Xi'an (710054), Shaanxi Province, China
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表12种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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