Study on rapid recognition technique of schistosome susceptibility water bodyⅠAnimal skin making and effect assessment / 中国血吸虫病防治杂志

Objective To develop a bionic animal skin and evaluate its detective effect of Schistosoma japonicum cercariae so as to provide a new technique for the monitoring of the schistosome susceptibility water body.Methods A bionic animal skin was made with pigskin and the experiments were carried out for evaluating its detective effects of S.japonicum cercariae in labo-ratory and simulate fields,and at the same time,the sentinel mouse method was used as the control.Results In the laborato-ry,the cercariae were found in 10-,30-,60-cercaria subgroups in the bionic animal skin group after 1 and 2 hours,but the cer-cariae were found only in the 60-cercaria subgroup in the sentinel mouse group.In the simulate fields,in the water body with 5 schistosome-infected Oncomelania hupensis snails,the cercariae were found in 2 bionic animal skin devices(2/4)and 3 bionic animal skin devices(3/4)after 2 hours and 4 hours respectively,and in the water body with 10 schistosome-infected O.hupensis snails,the cercariae were found in 4 bionic animal skin devices(4/4)and 3 bionic animal skin devices(3/4)after 2 hours and 4 hours respectively in the bionic animal skin group.In the the sentinel mouse group,in the above-mentioned water bodies(with 5 or 10 schistosome-infected O.hupensis snails),the cercariae were found in 2 sentinel mice(2/4)and 1 sentinel mice(1/4)af-ter 2 hours and 4 hours respectively;and the cercariae were found in 2 sentinel mice(2/4)and 3 sentinel mice(3/4)after 2 hours and 4 hours respectively.Conclusion The bionic animal skin device can be used to detect the S.japonicum cercariae, and its sensibility and efficiency are superior to the traditional sentinel mouse method.

Infectivity of Microtus fortis to schistosome in Dongting Lake region / 中国血吸虫病防治杂志

Objective To study whether Microtus fortis can be infected with schistosome in wild. Methods Two villages (Banghu Village of Yueyang County and Nangang Village of Yuanjiang City) were selected as the study pilots. M. fortis were captured from both outside and inside embankment of the 2 villages. The liver, portal vein and mesentery vein of the captured M. fortis were examined for schistosome eggs, adult worms and schistosomula. Results A total of 1 440 M. fortis were captured, and after examined there were no eggs, adult worms and schistosomula of schistosome found. Conclusion M. fortis can not be infected with schistosome in wild environment.