An outbreak of an atypical form of ovine dermatophilosis affecting the lips and muzzle with a very high morbidity in weaners and hoggets in Kenya is reported. Clinical diagnosis of ovine dermatophilosis was made and confirmed by direct microscopic examination as well as isolation and identification of Dermatophilus congolensis from scab material from the affected sheep. The morbidity rate within the flock was 31.8 % (237 / 745) with 98.3 % (233 / 237) of the affected sheep being weaners and hoggets. No fatalities were recorded. The lesions, confined in the lips and the muzzle, were swelling of both the upper and lower lips, circumscribed lumps in the skin of both the upper and lower lips, oedema of the head and the submandibular area and scabs and crusts on the lips and muzzle. Within 1 week following treatment with long acting oxytetracycline (20 %) at a rate of 20 mg/kg body weight, intramuscularly and a topical application of oxytetracycline spray, lumps regressed in size and were covered by dark-brown scabs. Removal of the dark-brown scabs revealed erythematous areas covered with purulent material and horny erythematous projections (papillae) projecting from the surfaces. Within the 2nd week, the horny erythematous projections formed greyish scabs, which later peeled off leaving alopaecic areas around the lips. The paper highlights atypical dermatophilosis of sheep and we believe that this is the first published report of an outbreak of ovine dermatophilosis in Kenya
A cross sectional coprological study was undertaken to determine the prevalence of intestinal helminths. Demographic data on sex, age, purpose of dog keeping, sleeping area, fecal disposal and deworming status in dogs in Kangemi area of Nairobi, Kenya was also taken. A total of 255 dog feacal samples were collected from August to October, 2016 for parasitological analysis. Laboratory examination for worm eggs identifi cation and enumeration was done using modifi ed Mc Master technigue. Ninety samples were positive for intestinal parasites giving an overall prevalence of 35.29%. On average there were 952 and 512.5 epg for hookworms and ascarids respectively. In the sampled dogs, Ancylostoma eggs were found in 79 (30.98%), Toxocara eggs in 24 (9.41%), Trichuris eggs in 2 (0.0078%), Isosporaoocysts in 3 (0.011%) and Tapeworms in 1 (0.0039%) of samples. Ancylostomumcaninum (90.48%) and Toxocaracanis (71.54%) were the most prevalent species identifi ed. There was no signifi gant statistical difference between dog sex and worm load (P=0.9). There was high prevalence of Ascarid infection among puppies (62.5%) as compared to adults (37.5%). Most dogs (92.55%) were kept for security purposes with 53.33% not housed. In households from which samples were collected, 43.64% dispose dog feces to the nearest bush while 26.36% and 30% dispose it to garbage and pit latrines respectively. The high prevalence of potential zoonotic gastrointestinal helminthes in the study area poses health risk to the residents and calls for regular dog deworming and creation of public awareness.
Dermatophilosis, caused by Dermatophilus congo/ensis, is a disease that affects mainly cattle, sheep, camels, horses and goats and occurs as an acute or chronic exudative skin disease 1. Injury of the skin by insect and tick bites and thorny bushes accompanied by prolonged wetting are thought to be important predisposing factors 1 ,2. Affected animals initially develop moist, round, circumscribed papules that later turn to scabs and crusts whose location is highly variable 3 ,4.
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