Although both Dermatophilus congolensis and Microsporum gypseum infections have been reported separately in camels, mixed infection involving both agents has not been reported to date. The authors describe a mixed infection of D. congolensis and M. gypseum in camels reared on a dairy farm in Saudi Arabia. A total of 131 out of 559 camels (23.4%) were affected. Forty-eight camels less than one year of age had discrete, circumscribed, crusty, hairless lesions, found in particular on the neck and forelegs. Eighty-three camels of varying ages had extensive hair matting with crusty, hairless lesions, especially on the flanks. Camel calves and young camels demonstrated a relatively greater amount of skin lesions. D. congolensis and M. gypseum were diagnosed by direct microscopy, isolation and histopathology.
Natural Dermatophilus congoíensis infection of camels has been reported in Kenya in semi-arid areas. Research is being conducted to discover how widespread the condition is in neighbouring countries with similar eco-climatic conditions. Severe skin infections of camels from the Butana region of Eastern Sudan were examined. The infections were first found in two herds of adult camels, of which 50%-75% of the animals were affected. In the other thirteen herds examined, camel calves were more likely to be infected (34%) than adults (8.9%), and lesions were more severe and involved most parts of the body. The lesions began as hair matting and later developed into hard crusts. The case fatality rate ranged from 10% to 30%. D. congolensiswas isolated from the scabs. Camel dermatophilosis was found to be among the most serious problems faced by camel herders in the Butana region.
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