BIOLOGICAL STUDIES ON ASCARIS EGGS
نویسندگان
چکیده
منابع مشابه
A Quantitative Assessment Method for Ascaris Eggs on Hands
The importance of hands in the transmission of soil transmitted helminths, especially Ascaris and Trichuris infections, is under-researched. This is partly because of the absence of a reliable method to quantify the number of eggs on hands. Therefore, the aim of this study was to develop a method to assess the number of Ascaris eggs on hands and determine the egg recovery rate of the method. Un...
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The objective of this study was to evaluate the effects of several different commercial disinfectants on the embryogenic development of Ascaris suum eggs. A 1-ml aliquot of each disinfectant was mixed with approximately 40,000 decorticated or intact A. suum eggs in sterile tubes. After each treatment time (at 0.5, 1, 5, 10, 30, and 60 min), disinfectants were washed away, and egg suspensions we...
متن کاملEffects of Some Pesticides on Development of Ascaris suum Eggs
To evaluate the effects of pesticides to parasite eggs, Ascaris suum eggs were incubated with 5 different pesticides (1:1,500-1:2,000 dilutions of 2% emamectin benzoate, 5% spinetoram, 5% indoxacarb, 1% deltamethrin, and 5% flufenoxuron; all v/v) at 20℃ for 6 weeks, and microscopically evaluated the egg survival and development on a weekly basis. The survival rate of A. suum eggs incubated in n...
متن کاملInactivation of Ascaris eggs in source-separated urine
9 Sustainable management of toilet waste must prevent disease transmission but allow reuse of plant 10 nutrients. Inactivation of uterus-derived Ascaris suum eggs was studied in relation to ammonia in 11 source-separated urine without additives and in human faeces to which urea had been added, in order to 12 evaluate ammonia-based sanitation for production of safe fertilisers from human excreta...
متن کاملInactivation of viable Ascaris eggs by reagents during enumeration.
Various reagents commonly used to enumerate viable helminth eggs from wastewater and sludge were evaluated for their potential to inactivate Ascaris eggs under typical laboratory conditions. Two methods were used to enumerate indigenous Ascaris eggs from sludge samples. All steps in the methods were the same except that in method I a phase extraction step with acid-alcohol (35% ethanol in 0.1 N...
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ژورنال
عنوان ژورنال: Japanese Journal of Medical Science and Biology
سال: 1952
ISSN: 0021-5112,1884-2828
DOI: 10.7883/yoken1952.5.45