Abstract:
OBJECTIVE:To determine the prevalence and intensity of Schistosoma japonicum infection and associated morbidity, and to estimate the infected human and buffalo populations in the Dongting Lake region, Hunan province, China. METHODS:We used data from the third national schistosomiasis periodic epidemiological survey (PES) of 2004. These included 47 144 human serological and 7205 stool examinations, 3893 clinical examinations and questionnaire surveys, and 874 buffalo stool examinations, carried out in 47 villages in Hunan province. Serological examinations were performed using the enzyme linked immunosorbent assay technique and human stool samples were examined by the Kato-Katz method. Stools from buffaloes and other domestic animals were examined for schistosome infection by the miracidial hatching test. FINDINGS:Sero-prevalence was 11.9% (range: 1.3-34.9% at the village level), and the rate of egg-positive stools was estimated at 1.9% (0-10.9%) for the same population. The prevalence of infection among buffaloes was 9.5% (0-66.7%). Extrapolating to the entire population of the Dongting Lake region, an estimated 73 225 people and 13 973 buffaloes were infected. Most frequently reported symptoms were abdominal pain (6.2%) and bloody stools (2.7%). More than half of the clinically examined people reported having had at least one prior antischistosomal treatment. CONCLUSION:There was a significant reduction in the number of humans infected with S. japonicum since the previous national PES carried out in 1995, partially explained by large-scale chemotherapy campaigns. However, a near-stable number of buffalo infections suggest continuing human re-infection, which may lead to future increases in human prevalence.
journal_name
Bull World Health Organjournal_title
Bulletin of the World Health Organizationauthors
Balen J,Zhao ZY,Williams GM,McManus DP,Raso G,Utzinger J,Zhou J,Li YSdoi
10.2471/blt.06.034033subject
Has Abstractpub_date
2007-07-01 00:00:00pages
519-26issue
7eissn
0042-9686issn
1564-0604pii
S0042-96862007000700009journal_volume
85pub_type
杂志文章abstract::The ultrastructure of the trophozoite of Entamoeba histolytica cultivated in vitro on artificial media is described from electron-microscope studies made by the authors and from other published accounts. The authors point out that the description does not present a complete picture of the trophozoite of this species o...
journal_title:Bulletin of the World Health Organization
pub_type: 杂志文章
doi:
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journal_title:Bulletin of the World Health Organization
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journal_title:Bulletin of the World Health Organization
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journal_title:Bulletin of the World Health Organization
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pub_type: 杂志文章
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journal_title:Bulletin of the World Health Organization
pub_type: 杂志文章
doi:
更新日期:1978-01-01 00:00:00
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journal_title:Bulletin of the World Health Organization
pub_type: 杂志文章
doi:
更新日期:2001-01-01 00:00:00
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journal_title:Bulletin of the World Health Organization
pub_type: 杂志文章
doi:
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journal_title:Bulletin of the World Health Organization
pub_type: 杂志文章
doi:
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journal_title:Bulletin of the World Health Organization
pub_type: 杂志文章
doi:
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journal_title:Bulletin of the World Health Organization
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journal_title:Bulletin of the World Health Organization
pub_type: 临床试验,杂志文章,随机对照试验
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