›› 2002, Vol. 20 ›› Issue (2): 11-108.

• 论著 • Previous Articles     Next Articles

Prevalence Survey on Cyclospora cayetanensis and Cryptosporidium ssp. in Diarrhea Cases in Yunnan Province

ZHANG Bing-xiang 1;YU Hui 1;ZHANG Li-li 1;TAO Hong 1;LI Yan-zhong 1;LI Ying 1;CAO Zhi-kuan 2;BAI Zhi-ming 3;HE Yong-qing 3   

  1. 1 Yunnan Center for Disease Control and Prevention;Kunming 650022; 2 Luoping County Health and Anti- Epidemic Station, Luoping 655800;3Yuanyang country Health and Anti-Epodemic Station, Yuanyang 662400
  • Received:1900-01-01 Revised:1900-01-01 Online:2002-04-30 Published:2002-04-30

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Abstract: 　Objective To investigate the prevalence and distribution characteristics of Cyclospora cayetanensis and Cryptosporidium ssp. infection in diarrhea cases of Yunnan Province. Methods To collect fresh faeces from diarrhea cases in 7 counties/cities, examine the specimens by direct smear with iodine staining and modified acid-fast staining. Results The infection rate of C. cayetanensis and Cryptosporidium ssp. was 3.97% and 5.29%, respectively. The infection rate of the two pathogenic coccidians was as high as 10.64% and 8.51% in preschool children. C. cayetanensis was found in 3 counties and Cryptosporidium in 6 counties. Conclusion Both C. cayetanensis and Cryptosporidium ssp. are prevalent in Yunnan Province with the latter distributed more widely, and the two pathogens are more prevalent in preschool children.

Key words: Cyclospora cayetanensis, Cryptosporidium ssp., diarrhea, prevalence, survey