Abstract
Abstract A description is provided for Arthroderma simii . Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: The natural habitat of this species is uncertain. It was first isolated from the rhesus monkey but occurs more frequently on the fowl and it has been suggested that the fowl is the primary host, the monkey becoming infected when it raids the chicken yard for food. Also recorded from man (particularly poultry attendants), chimpanzee, dog and domestic rabbit. It has also been isolated from small mammals (gerbil, guineapig, mouse, shrew, squirrel, rat) without apparent lesions (RMVM 6, 1188; 8, 440; 11, 1889) and sporadically from soil (especially chicken yard soil). The fowl, guineapig, man, cynomolgus monkey, mouse and rabbit have been experimentally infected. DISEASE: Ringworm (dermatophytosis, tinea). In the fowl lesions are usually detected on the comb and wattles, occasionally at the base of the flank feathers. In man the body (tinea corporis) and less frequently the groin (tinea cruris), feet (tinea pedis), scalp (tinea capitis) and beard (tinea barbae) may be infected. Lesions in animals and man are scaling and very inflammatory and kerion formation is usual in scalp and beard infections of man (RMVM 7, 1241). Hair invasion is minimal except in experimental infections of guineapigs; in these the infected hairs show an ecto-endothrix type of invasion and usually a vivid green fluorescence under Wood's light. GEOGRAPHICAL DISTRIBUTION: India [see NOTES].
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