COVID-19 epidemic and its characteristics in Heilongjiang province
10.3760/cma.j.cn112338-20200521-00752
- VernacularTitle:黑龙江省新型冠状病毒肺炎本土相关疫情流行特征
- Author:
Jianfeng ZHANG
1
;
Hongyang ZHANG
;
Shipeng ZHANG
;
Tian TIAN
;
Xuebo DU
;
Yuliang ZHU
;
Diankun WU
;
Yan GAO
;
Jing MA
;
Yong ZHAN
;
Ying LI
;
Qiuju ZHANG
;
Wenjing TIAN
;
Xiaojie YU
;
Yashuang ZHAO
;
Guangyu JIAO
;
Dianjun SUN
Author Information
1. 黑龙江省疾病预防控制中心，哈尔滨 150030
- Keywords:
COVID-19;
Epidemic;
Cluster of case
- From:
Chinese Journal of Epidemiology
2020;41(12):2005-2009
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To describe the COVID-19 epidemic and its characteristics in Heilongjiang province, and provide evidence for the further prevention and control of COVID-19 in the province.Methods:The information of COVID-19 cases and clusters were collected from national notifiable disease report system and management information system for reporting public health emergencies of China CDC. The Software’s of Excel 2010 and SPSS 23.0 were applied for data cleaning and statistical analysis on the population, time and area distributions of COVID-19 cases.Results:On January 22, 2020, the first confirmed case of COVID-19 was reported in Heilongjiang. By March 11, 2020, a total of 482 cases domestic case of COVID-19, The incidence rate was 1.28/100 000, the mortality rate was 2.70% (13/482) in 13 municipalities in Heilongjiang. There were 81 clusters of COVID-19, The number of confirmed cases accounted for 79.25% (382/482) of the total confirmed cases and 12 cases of deaths. The family clusters accounted for 86.42% (70/81). Compared with the sporadic cases, the mortality rate, proportion of elderly cases aged 60 or above and severe or critical cases of clinical classification were all higher in the clusters especially the family clusters, but the differences were not significant ( P>0.05). There were 34 clusters involving more than 5 confirmed cases accounted for 41.98% (34/81) of the total clusters, the involved cases accounted for 68.31% (261/382) of the total cases of clusters. There were significant differences in age distribution of the cases among the case clusters with different case numbers. In the clusters involving 6-9 cases, the proportion of cases aged 65 years or above was more (26.53%, 39/147). Conclusions:The incidence rate of COVID-19 was relatively high and the early epidemic was serious in Heilongjiang, The number of cases was large in clusters especially family clusters.
