Analysis on malaria prevalence in 3 counties at minority regions of Northern Liuzhou, Guangxi Zhuang Autonomous Region during 2000-2007

Abstract

Objective To analyze the endemic situation of malaria in 3 counties at minority regions of Northem Liuzhou during 2000-2007 and the relations with the malaria transmission areas and outbreak foci of neighboring provinces. Nethods The rate of blood smear examined in fever patients and positive rate of blood smears were investigated and statistically analysed.The malaria patients in mobile population were classi-fled.The distribution of malaria patients in villages of 3 counties was described.The species of malaria para-sites were also identified. Results During 2000-2007.there were 202 malaria cases reported with 179 cases in mobile population.The dominant parasite was Plasmodium vivax and there were alSO a feW P.falciparum and mixed infection.Malaria cases in the local residents were only 23 and no fatciparum malaria cases were repor-ted.Most malaria patients in mobile population of Sanjiang county were infected in Southeast Asia countries,accounting for 69.7%of malaria patients in local mobile population.But malaria patients in mobile population of Rongshui and Rongan counties were mostly infected in Hainan Province.accounting for 90.9%and l 0HD%of malaria patients in local mobile population respectively. Conclusion At present,malaria patients in the are-as were mostly infected in other provinces then returned home.There Was almost no relation with the malaria transmission areas of neighboring provinces.The poptdation threatened by malaria accounting for 1.34% of the total.thus the malaria prevalence rate Was effectively controlled under 1/10000. Key words: Malaria; Mobile population; Southeast Asia; Minority