الفهرس 
AcknowledgementOnly 14 pages are availabe for public view
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Abstract
In this study, laboratory investigation was done to determine the rate of ring worm inf ection among farmers seeking medical advice at the out patient clinic ~ Abbis 11 rural center.& to determine the most prevalent types of dermatophytes among population of this rural area and investigating the role of animals and soil in being a source of dermatophyte infection to human beings. Samples for laboratory investigation were taken from one hundred and fifty patients clinically diagnosed as tinea lesions,& forty five animals1 of suspected cases_in addition to ~eventy soil samples. Infection rate and laboratory investigation:of ring worm: 1. Infection rate of human ring WOrm was 34 . 2. The main bulk of cases were chi Idren between 1 - 10 years (52.9 ) an~ t. capitis was the most cOmmOn type of infection. The second group were teenagers 10-20 Iyears 01.3 ) 3. Males were more affected than females; the difference l1li was detected at the age group 1 - 10 , 10 - 20 years. At the age 20 - 30 years, nearly equal distribution was observed in both sexes. t .,; 4. The rate of human ring wOrm infection was highest in spring (54.93 ) and low in summer (11.54 ), moderate in autu~n (23.33 ). This is most probably due to climatic and environ~ental conditions~ 5. Eight different species of der~atophytes were isolated and characterized as follows: T. violaceum 37.25 E. floccosum 5.88 - - T. mentagrophytes 27.45 T. verrucosum 5.88 T. verrucosum 5.88 ,. ferrugineum 3.92 - - 7.84 1. 96 T. soudanense M.. canis - .- AnifT!a Is: The infection rate of the disease in animals (cattle, sheep and horse) of suspected cases for rine Worm was 57.7 and..1’... verrucosum was the most preva lent type. a Soil: . 23(23.85 ) were positive on culture among the soil collected from the suspected human houses, and :h ajello & M. gypseum tophytes isolated. were the most frequent derma Possible sources of infection: 1. ~oophilic source: The same zoophilic dermatophyte (31.37 ) was isolated from human - cases. c\ .. 2. Geophilic source: ” ;~ 9.8 gave the same typical growth of geophilic dermatophytes isolated from the far~ers’ house soil. One cannot neglect the important role of animals and soil as sources of ring worm infection in addition to the bad health habits and overcrowding of farmers in small sized primary schools. . houses or in slums and students in Hence, the importance of health education programms. ) and winter (8.7