Objective: To understand the epidemic characteristics of imported malaria in Henan Province from 2012 to 2014, so as to provide the evidence for proposing the reasonable suggestions for imported malaria prevention and control.
Methods: The data of imported malaria were collected and the epidemic characteristics were analyzed in Henan Province from 2012 to 2014.
Results: A total of 569 imported malaria cases were reported in Henan Province from 2012 to 2014, including 445 cases of falciparum malaria, 48 cases of vivax malaria, 61 cases of ovale malaria, 14 cases of quartan malaria, and 1 case of mixed infection. All the malaria cases were confirmed in laboratory. During the three years, the time of higher incidence was in Spring Festival, and May and June, and the cases mainly distributed in Luoyang, Zhengzhou, Puyang, Xinxiang, Anyang, Xuchang and Nanyang cities, accounting for 68.54%. Totally 82.43% of the patients were male youth and middle-aged. Of the 569 patients, 534 (93.85%) returned from Africa and 35 (6.15%) returned from Southeast Asian countries. The average time was 6.22 d and the median was 4 d from the onset to diagnosis. Among 569 cases, 290 (50.97%) were confirmed by different levels of centers for disease prevention and control, and 279 (49.03%) were diagnosed by different levels of medical institutions.
Conclusions: The imported malaria cases have been increased obviously in recent 3 years in Henan Province. Therefore, the health education for the knowledge about malaria prevention and control, and the technician training should be strengthened.
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