title: [Epidemiology of soil-transmitted nematode infections in central mountain area of Hainan province].
abstract: The epidemiology of soil-transmitted intestinal nematodes were observed in the central mountain area without anti-helminthic therapy from 1986 to 2008. The results showed that the overall prevalence decreased from 96.4% in 1986 to 35.7% in 2008. The prevalence of Ancylostoma duodenale, Ascaris lumbricoides and Trichuris trichiura decreased from 84.7%. 80.9%, 31.8% in 1986 to 32.5%, 0.3%, 4.2% in 2008, respectively. The proportion of light infection with Ancylostoma duodenale, Ascaris lumbricoides and Trichuris trichiura increased from 56.6%, 41.2%, and 66.9% in 1986 to 97.9%, 100%, and 83.7% in 2008, respectively. While that of heavy infection decreased from 6.8%, 11.9%, and 3.8% in 1986 all to zero in 2008. Water and toilet renovation, rural income increase and the improvement of sanitation and living conditions made the prevalence of soil-transmitted intestinal nematode decreased.
authors.affiliation: Institute of Parasitic Diseases Control, Hainan Provincial Center for Disease Control and Prevention, Haikou 570203, China. linshaoxiong198@sina.com
authors.forename: Shao-xiong
authors.initials: SX
authors.lastname: Lin
authors.forename: Shan-qing
authors.initials: SQ
authors.lastname: Wang
authors.forename: Xi-min
authors.initials: XM
authors.lastname: Hu
authors.forename: Dong-yan
authors.initials: DY
authors.lastname: Chen
authors.forename: Chong-jing
authors.initials: CJ
authors.lastname: Tong
authors.forename: Shan-wen
authors.initials: SW
authors.lastname: Li
mesh_terms: D000818:Animals; D002681:China / Q000453:epidemiology; D006801:Humans; D009349:Nematode Infections / Q000453:epidemiology* / Q000469:parasitology* / Q000635:transmission; D015995:Prevalence; D012987:Soil / Q000469:parasitology*
chemical_list: D012987:Soil