一九九七年全国疟疾形势

MALARIA SITUATION IN THE PEOPLES REPUBLIC OF CHINA IN 1997

１９９７年全国疟疾形势基本稳定，疫情报告疟疾发病人数比１９９６年略有减少，除５个省、市疫情回升外，其余各省、市、自治区疟疾发病率有不同程度降低，没有发生较大范围的暴发流行。防治工作据疟区１９个省、直辖市、自治区统计，休止期服药人数为１７６２８９２人，...

Abstract According to the case reporting system, the number of malaria cases in China numbered 34 645(Taiwan Province and Hong Kong not included)in 1997, with a mean incidence of 2.91 per a hundred thousand and lethal cases of 46. However, the estimated number of actual malaria cases based on investigations at provincial level was 220 000-250 000, showing a slight diminution as compared with that in 1996. Yunnan and Hainan were continued to be the major provinces endemic for malaria, where the number of malaria cases amounted to 46% of the total in the whole country. In Yunnan Province, an increase of outbreak spots and resurgence of malaria incidence in border region were reported, while the incidence was stable or slightly declined in most other provinces, but was fluctuated in provinces distributed with Anopheles anthropophagus . Blood examination on febrile patients for 9 209 102 man/time in 1 294 counties of 18 provinces/municipalities/autonomous regions (P/M/A)with a population of 569 703 000 detected 26 816 cases positive for malaria parasite, showing a mean positive rate of 0.29%; of which the number of falciparum malaria cases were 4 114( including mixed infections with vivax malaria, the same below), accounting for 15.3% of the total parasite positives ;of the three quartan malaria cases detected, one was infected via blood transfusion. Totally 568 783 target population and migratory people were surveyed, 2 861 were positive for malaria parasite, with a mean parasite rate of 0.50%; and 586 falciparum malaria cases were among the positives. As a whole, the endemicity of falciparum malaria was still confined to 44 counties of Hainan and Yunnan Provinces . Imported falciparum cases were reported in 74 counties located in 17 P/M/A, however, no introduced falciparum malaria cases were recorded.