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Prevalence of Cystic Echinococcosis in Slaughtered Sheep as an Indicator to Assess Control Progress in Emin County, Xinjiang, China.

Yang S, Wu W, Tian T, Zhao J, Chen K, Wang Q, Feng Z - Korean J. Parasitol. (2015)

Bottom Line: The results showed a significant decline trend of prevalence in all age groups during the 7 years when the control program was implemented; particularly, the rate was reduced by 72% after first 3 years.Among the sheep slaughtered, the age distribution evidenced that the prevalence increased significantly as the sheep grew older.Significant decline started from 2008 at the age <1, from 2009 at age of 1~, 2010 at 2~ to 3~, and the latest, in 2012 at age ≥ 4.

View Article: PubMed Central - PubMed

Affiliation: National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, WHO Collaborating Centre for Malaria, Schistosomiasis and Filariasis, Shanghai 200025, China.

ABSTRACT
Hydatid disease imposing serious threat on human health and great loss in live¬stock pastoralism remains a major public health problem in western China. To assess and monitor the effect of control program on transmission dynamics, we used the prevalence of cystic echinococcosis in slaughtered sheep at slaughterhouse as an indicator during the period of 2007 to 2013 in Emin County, Xinjiang Uygur Autonomous Region, China. The results showed a significant decline trend of prevalence in all age groups during the 7 years when the control program was implemented; particularly, the rate was reduced by 72% after first 3 years. Among the sheep slaughtered, the age distribution evidenced that the prevalence increased significantly as the sheep grew older. The baseline data indicated that the rate was 4.5% at the age <1, 6.7% at age 2~, and reached to the highest 17.9% at age ≥ 4 years. Earlier response to the intervention pressure was seen in the sheep at the younger age. Significant decline started from 2008 at the age <1, from 2009 at age of 1~, 2010 at 2~ to 3~, and the latest, in 2012 at age ≥ 4. This study demonstrated that the prevalence of cystic echinococcosis in slaughtered sheep may be used as an indicator to assess and monitor the transmission status during and after control program providing information for betterment of performance to sustain control strength.

No MeSH data available.


Related in: MedlinePlus

Geographic location of Emin County, Xinjiang, China.
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f1-kjp-53-3-355: Geographic location of Emin County, Xinjiang, China.

Mentions: To evaluate the effect of the control program on E. granulosus transmission in Emin County, we investigated the changes of the hydatid cyst prevalence in slaughtered sheep from October 2007 to November 2013. Emin County is located in the north border of Xinjiang, at latitudes 46°N and altitudes 83°E (Fig. 1). It consists of 11 administrative townships including 5 pastures and 1 farm, covering 1,050 acres of natural grassland and a total population of 220 thousands with multiethnic groups. Xinjiang is one of the 5 major pastoral areas in the country, and a highly endemic area of CE. Implementing the national control program, deworming of dogs was carried out as a main component among other measures. In the county, all the domestic dogs were registered and monthly administered with PZQ at a dosage of 200 mg for the body weight under 15 kg and 400 mg for over 15 kg. The stray dogs were also dewormed by auto-feeding with PZQ-mixed food placed at assigned sites and checked regularly. After dosed, the dog feces were deep buried to avoid environment contamination [11]. To ensure implementation of the control program, each village appointed a resident to be responsible for deworming of dogs and delivering health education. The County Department of Quarantine strengthened inspection of the slaughterhouse, strictly restricting feeding dogs with offal and prohibiting sales of sick animals’ offal.


Prevalence of Cystic Echinococcosis in Slaughtered Sheep as an Indicator to Assess Control Progress in Emin County, Xinjiang, China.

Yang S, Wu W, Tian T, Zhao J, Chen K, Wang Q, Feng Z - Korean J. Parasitol. (2015)

Geographic location of Emin County, Xinjiang, China.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4510681&req=5

f1-kjp-53-3-355: Geographic location of Emin County, Xinjiang, China.
Mentions: To evaluate the effect of the control program on E. granulosus transmission in Emin County, we investigated the changes of the hydatid cyst prevalence in slaughtered sheep from October 2007 to November 2013. Emin County is located in the north border of Xinjiang, at latitudes 46°N and altitudes 83°E (Fig. 1). It consists of 11 administrative townships including 5 pastures and 1 farm, covering 1,050 acres of natural grassland and a total population of 220 thousands with multiethnic groups. Xinjiang is one of the 5 major pastoral areas in the country, and a highly endemic area of CE. Implementing the national control program, deworming of dogs was carried out as a main component among other measures. In the county, all the domestic dogs were registered and monthly administered with PZQ at a dosage of 200 mg for the body weight under 15 kg and 400 mg for over 15 kg. The stray dogs were also dewormed by auto-feeding with PZQ-mixed food placed at assigned sites and checked regularly. After dosed, the dog feces were deep buried to avoid environment contamination [11]. To ensure implementation of the control program, each village appointed a resident to be responsible for deworming of dogs and delivering health education. The County Department of Quarantine strengthened inspection of the slaughterhouse, strictly restricting feeding dogs with offal and prohibiting sales of sick animals’ offal.

Bottom Line: The results showed a significant decline trend of prevalence in all age groups during the 7 years when the control program was implemented; particularly, the rate was reduced by 72% after first 3 years.Among the sheep slaughtered, the age distribution evidenced that the prevalence increased significantly as the sheep grew older.Significant decline started from 2008 at the age <1, from 2009 at age of 1~, 2010 at 2~ to 3~, and the latest, in 2012 at age ≥ 4.

View Article: PubMed Central - PubMed

Affiliation: National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, WHO Collaborating Centre for Malaria, Schistosomiasis and Filariasis, Shanghai 200025, China.

ABSTRACT
Hydatid disease imposing serious threat on human health and great loss in live¬stock pastoralism remains a major public health problem in western China. To assess and monitor the effect of control program on transmission dynamics, we used the prevalence of cystic echinococcosis in slaughtered sheep at slaughterhouse as an indicator during the period of 2007 to 2013 in Emin County, Xinjiang Uygur Autonomous Region, China. The results showed a significant decline trend of prevalence in all age groups during the 7 years when the control program was implemented; particularly, the rate was reduced by 72% after first 3 years. Among the sheep slaughtered, the age distribution evidenced that the prevalence increased significantly as the sheep grew older. The baseline data indicated that the rate was 4.5% at the age <1, 6.7% at age 2~, and reached to the highest 17.9% at age ≥ 4 years. Earlier response to the intervention pressure was seen in the sheep at the younger age. Significant decline started from 2008 at the age <1, from 2009 at age of 1~, 2010 at 2~ to 3~, and the latest, in 2012 at age ≥ 4. This study demonstrated that the prevalence of cystic echinococcosis in slaughtered sheep may be used as an indicator to assess and monitor the transmission status during and after control program providing information for betterment of performance to sustain control strength.

No MeSH data available.


Related in: MedlinePlus