热带病与寄生虫学 ›› 2023, Vol. 21 ›› Issue (4): 220-222,242.doi: 10.3969/j.issn.1672-2302.2023.04.009

• 防治研究 • 上一篇    下一篇

2011—2021年驻马店市发热患者疟原虫血检情况分析

田丽(), 魏爱平, 杜燕飞   

  1. 驻马店市疾病预防控制中心,河南 驻马店 463000
  • 收稿日期:2023-01-09 出版日期:2023-08-20 发布日期:2023-08-23
  • 作者简介:田丽,女,本科,主管医师,研究方向:寄生虫病与地方病防治。E-mail: 644171182@qq.com

Analysis on the blood smear examination results of Plasmodium in febrile patients in Zhumadian City, 2011-2021

TIAN Li(), WEI Aiping, DU Yanfei   

  1. Zhumadian Center for Disease Control and Prevention, Zhumadian 463000, Henan Province, China
  • Received:2023-01-09 Online:2023-08-20 Published:2023-08-23

摘要:

目的 分析驻马店市发热患者疟原虫血检工作开展情况,探讨消除疟疾后适合当地的监测方法,防止境外疟疾输入再传播。方法 收集2011—2021年驻马店市发热患者疟原虫血检资料,省、市两级实验室血检复核资料,疟疾网络报告疫情资料以及疟疾病例流行病学个案调查资料等,对发热患者血检情况、阳性病例分布情况和血检结果复核情况等进行分析。结果 2011—2021年驻马店市共血检发热患者435 748人·次,检出疟原虫感染患者49例,血检阳性率为1.12/万。49例疟疾病例中,恶性疟最多(26例,占53.06%),其次是间日疟(17例,占34.69%)。患者性别以男性为主(45例,占91.84%);年龄集中在21~50岁(44例,占89.80%)。44例(占89.80%)为境外输入,感染来源地主要为非洲(41例,占83.67%)。血检阳性患者报告数量前3位的县(区)依次为驿城区(14例)、西平县(12例)和泌阳县(10例)。2011—2021年市级共复核血片12 886张,阴性符合率为99.98%(12 830/12 833),阳性符合率为86.79%(46/53)。结论 发热患者疟原虫血检工作在驻马店市消除疟疾进程中发挥着重要作用,消除后应将从疟疾流行区回国的发热患者作为监测重点,同时要持续巩固专业技术人员的疟疾诊断水平,及时消除传播隐患。

关键词: 疟疾, 发热患者, 血检, 驻马店市

Abstract:

Objective To analyze the status of blood smear examination for Plasmodium in patients with fever in Zhumadian City, and explore appropriate monitoring method for local management of the infection after malaria elimination, so as to prevent re-transmission of malaria imported from abroad. Methods The data, including blood smear examination for Plasmodium in febrile patients in Zhumadian City, the testing results reviewed in both provincial and municipal laboratories, the epidemic situation data of malaria reported through network and the epidemiological investigation data of positive malaria cases in Zhumadian City were collected from 2011 to 2021. Then the results, including blood tests in febrile patients, distribution of positive cases and reexamination of blood smears, were analyzed. Results A total of 435 748 individuals with fever in Zhumadian City underwent blood smear tests, which revealed Plasmodium infection in 49 patients. The positive rate was 1.12 per 10 000 people. In the 49 patients with positive findings, Plasmodium falciparum malaria was predominant (26 cases, 53.06%), followed by plasmodium vivax malaria (17 cases, 34.69%). Males were the most affected (45 cases, 91.84%), and the age is mainly concentrate in 21 to 50 years old (44 cases, 89.80%). Forty-four cases (89.80%) were imported from abroad. The main source of infection was in African countries (41 cases, 83.67%). The top 3 counties (districts) with the highest number of patients reported with positive blood smears were Yicheng District (14 cases), Xiping County (12 cases) and Biyang County (10 cases). From 2011 to 2021, a total of 12 886 blood smears were reviewed at the municipal level, of which the negative consistency rate was 99.98% (12 830/12 833) and the positive consistency rate was 86.79% (46/53). Conclusion The blood smear examination for Plasmodium in febrile patients plays an important role in the process of malaria elimination in Zhumadian City, and the fever patients returning from malaria endemic areas should be the focus of monitoring through blood smear examination after elimination. Meanwhile, it is necessary to continually consolidate the level of professionals in diagnosis of malaria in order to eliminate the hidden danger of transmission in a timely manner.

Key words: Malaria, Febrile patient, Blood smear examination, Zhumadian City

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