上海市88例本地感染疟疾流行病学特征分析

Analysis on epidemiological characteristics for the 88 local infected malarias in Shanghai

目的了解和掌握上海市疟疾流行规律与特征。方法对2003～2007年上海市本地感染疟疾病例的流行病学特征进行分析。结果在5年间共发现了88例本地感染病例,占疟疾报告病例的13.12%(11.17%～15.12%);其中间日疟72例,没有恶性疟病例,16例未分虫种;病例分布于10个郊区县,为散发;发病季节主要集中于8～10月份;男女性別比为2.38∶1,年龄在3～79岁间,其中本地居民的年龄主要集中于30～60岁,外来人员的年龄主要为20～40岁;职业以农民、民工和工人为主。结论本市本地感染疟疾为低水平、散发;多为间日疟,无恶性疟;主要分布于外来人员集中的郊区。

Objective To understand the epidemiological characteristics of malaria in Shanghai. Methods The data of the local infected malaria cases from 2003 to 2007 in Shanghai were collected and analyzed. Results There were 88 local infected malaria cases in the five years, which accounted for 13.12% of the total reported cases, the proportion of local infected malaria in annual malaria cases was between 11.17% and 15.12%. Of the 88 cases, 72 cases were P.vivax,16 cases were unidentified plasmodium and no cases of P. falciparum. All the cases were distributed in 10 suburbs. These cases were mainly occurred between August and October, and the ratio of male and female was 2.38:1. The age group for the native cases was mainly from 30 to 60 years old, and for the floating population was from 20 to 40 years old. The occupation for the cases was most of farmers, migrant workers and workers. Conclusion The local infected malaria cases in Shanghai was sporadic, most of the cases were P. vivax, and mainly occurred in the floating population living in the suburb.