关键词: 疟疾, 流行, 预防, 效果, 分析

Abstract: Objective To study malarial epidemic situation and preventive effect after basically elimminated malaria and provide foundation for solidifing elimminated malaria in Chenzhou.Methods The data in prevention and cure of malaria were collected over the years.The pathogeny,immunology and insectology surveillance of malaria were carried out and the malarial epidemic situation was dealt with.Results Chenzhou was a high epidemic area of malaria by the spread of An.Sinensis.The rate of protozoa and incidence was high to 83.8% and 8 298.92/10 000 respectively in 50's of the 20th century.In 1977,the rate was down to 6.36/100 000 gradually by repeated checking and treatment in the past years.In 1987,Hunan Health Department affirmed that Chenzhou had arrived the standard of the basically elimminated malaria.In 1987-2002,57 426 fever cases were checked by blood;1 563 malaria cases were found;the vivax malaria was 1 538;falciparum malaria was 23;mixed infection of vivax and falciparum malaria was 1;malariae malaria was 1.The incidence rate of malaria was 0.04/100 000- 6.72/100 000 and trended to descend gradually.The constituent ratio of imported malaria was 94.27%(1 515/ 1 607).Secondary case and healthy infectious people had not been found by permanent controlling the patient,taking preventive drug and elimminating malarial mosquito when the disease was in epidemic period.Conclusion The imported malaria cases were dominated in Chenzhou after basically elimminated malaria,but the local spread of malaria could not be excluded.The crowd coming from the district of higher incidence rate of malaria should be monitored in our later malarial prevention.