AI Article Synopsis
- The 2004 nationwide survey on schistosomiasis in China involved a sample of 250,987 residents across 239 villages in 7 endemic provinces using a stratified cluster random sampling method.
- Estimated prevalence rates of Schistosoma japonicum were highest in Hunan (4.2%) and lowest in Jiangsu (0.3%), with the lake and marshland areas showing a 3.8% rate.
- Overall, the total estimated infections in endemic areas were about 726,112, representing a 16.1% reduction from 1995, yet there was a 3.9% increase in infection rates in areas with ongoing transmission.
Article Abstract
Results from the third nationwide cluster sampling survey on the epidemiology of schistosomiasis in the People's Republic of China, conducted by the Ministry of Health in 2004, are presented. A stratified cluster random sampling technique was used, and 239 villages were selected in 7 provinces where Schistosoma japonicum remains endemic. A total of 250,987 residents 6-65 years of age were included in the survey. Estimated prevalence rates in the provinces of Hunan, Hubei, Jiangxi, Anhui, Yunnan, Sichuan, and Jiangsu were 4.2%, 3.8%, 3.1%, 2.2%, 1.7%, 0.9%, and 0.3%, respectively. The highest prevalence rates were in the lake and marshland region (3.8%) and the lowest rates were in the plain region with waterway networks (0.06%). Extrapolation to all residents in schistosome-endemic areas indicated 726,112 infections. This indicates a reduction of 16.1% compared with a nationwide survey conducted in 1995. However, human infection rates increased by 3.9% in settings where transmission is ongoing.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2851518 | PMC |
| http://dx.doi.org/10.3201/eid1310.061423 | DOI Listing |
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