Natural Dermatophilus congolensis infection in camels (Camelus dromedarius) from Kenya

Gitao, C G; Evans, J.; Atkins, D.J.

doi:10.1016/s0021-9975(08)80051-5

Cited by 10 publications

(15 citation statements)

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“…They reported that the disease was more prevalent in the wet season (21.2%) compared with its prevalence in the dry season (14.5%), and the calves were found to be more susceptible (23.1%) compared with the adults (19%). Clinically, the disease in affected camels was similar to that observed in the present study, with hair matting especially on the rump, neck, flanks, and lower abdomen with no lesions on the legs (Gitao et al 1990).…”

Section: Discussionsupporting

confidence: 87%

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Prevalence and pathology of dermatophilosis in camels (Camelus dromedaries) in Iran

Khodakaram-Tafti

Khordadmehr

Ardiyan

2011

Trop Anim Health Prod

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Gross and histopathologic lesions of the integumentary system were studied in 103 camels (Camelus dromedarius) slaughtered in Yazd Province of Iran. Dermatophilosis was diagnosed in 14 (13.6%) of the studied camels. Grossly, patchy thickening of the skin with dark brown scabs or crusts were observed on the rump, flanks, abdomen, shoulders, and neck. A heavy infestation with brown hard ticks was present on the lesions in almost all of the affected camels. On parasitology examination, all the ticks were identified as Hyalomma spp. Histopathologic examination of the affected skins revealed prominent superficial thickening of the epidermis as orthokeratotic and parakeratotic hyperkeratosis, degenerating neutrophils, serous fluid, and bacterial filaments. A lot of keratinaceous debris associated with an exudate rich in neutrophils were seen as remarkable features of the lesions on the superficial epidermis. Dermal inflammation was mild with infiltration of mononuclear inflammatory cells, particularly lymphocytes, around superficial vessels. A Gram-positive filamentous organism which was divided into parallel rows of cocci was observed in the crusts by Brown and Brenn Gram stain. This is the first report of the occurrence of dermatophilosis in the camels of Iran. With regard to infestation of the lesions by Hyalomma spp., it seems that this tick may have an important role in the pathogenesis of dermatophilosis in the camels of this region.

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Section: Discussionsupporting

confidence: 87%

“…Dermatophilosis has been described in dromedary camels in Kenya (Gitao et al 1990;Gitao 1992). They reported that the disease was more prevalent in the wet season (21.2%) compared with its prevalence in the dry season (14.5%), and the calves were found to be more susceptible (23.1%) compared with the adults (19%).…”

Section: Discussionmentioning

confidence: 99%

Prevalence and pathology of dermatophilosis in camels (Camelus dromedaries) in Iran

Khodakaram-Tafti

Khordadmehr

Ardiyan

2011

Trop Anim Health Prod

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“…Camel dermatophilosis has been described in Kenya before. 2,4 It is apparent that the condition is not restricted to one country and it may be present in other countries as well. There was a high skin involvement in the camel calves unlike in the adults.…”

Section: Resultsmentioning

confidence: 99%

A Comparison of Camel Dermatophilosis in Kenya and Sudan ^a

Gitao

Agab²,

Khalifalla

1998

Annals of the New York Academy of Sciences

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“…A previously-isolated strain of D. congolensis (8) was inoculated into nutrient broth and incubated aerobically for 72 h. The suspension was then centrifuged at 1,000 g for 15 min, and the cells resuspended in sterile saline containing 0.15% glucose. The concentration of the cells was then adjusted to 10 7 ,10 8 or 10 9 colony-forming units/ml (CFU/ml).…”

Section: Methodsmentioning

confidence: 99%

“…Camel dermatophilosis is a skin disease of camels which is caused by Dermatophilus congolensis (8). Although the initial clinical cases were found on one commercial ranch in a semi-arid area of Kenya, the disease was later found to occur in other camels in the semi-arid areas of Samburu district in northern Kenya, and therefore appears to be more widespread than originally thought.…”

Section: Introductionmentioning

confidence: 99%

An enzyme-linked immunosorbent assay for the epidemiological survey of Dermatophilus congolensis infection in camels (Camelus dromedarius)

Gitao

1993

Rev. Sci. Tech. OIE

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The breeding of camels (Camelus dromedarius) is especially important in arid and semi-arid areas of Africa, where drought and famine frequently occur. A number of diseases which impair camel production have recently been described, including dermatophilosis (caused by Dermatophilus congolensis). However, it is not possible to determine the prevalence of infection from clinical cases alone. An enzyme-linked immunosorbent assay has therefore been developed to determine the epidemiological prevalence of D. congolensis infection in sera of camels. Whole-cell antigen was used on microplates and the test serum was added. Horseradish peroxidase-conjugated sheep antibodies against heavy and light chains of camel immunoglobulin (Ig)G were then added, followed by substrate. The test was used to trace the antibody profile of twelve experimentally-infected camels. Peak antibody levels in serum occurred within twenty-one days following infection. It is planned to use this test to determine the epidemiological prevalence of D. congolensis infection in camels reared in a pastoral area of Kenya.

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Natural Dermatophilus congolensis infection in camels (Camelus dromedarius) from Kenya

Cited by 10 publications

References 5 publications

Prevalence and pathology of dermatophilosis in camels (Camelus dromedaries) in Iran

Prevalence and pathology of dermatophilosis in camels (Camelus dromedaries) in Iran

A Comparison of Camel Dermatophilosis in Kenya and Sudan ^a

An enzyme-linked immunosorbent assay for the epidemiological survey of Dermatophilus congolensis infection in camels (Camelus dromedarius)

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Natural Dermatophilus congolensis infection in camels (Camelus dromedarius) from Kenya

Cited by 10 publications

References 5 publications

Prevalence and pathology of dermatophilosis in camels (Camelus dromedaries) in Iran

Prevalence and pathology of dermatophilosis in camels (Camelus dromedaries) in Iran

A Comparison of Camel Dermatophilosis in Kenya and Sudan a

An enzyme-linked immunosorbent assay for the epidemiological survey of Dermatophilus congolensis infection in camels (Camelus dromedarius)

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Product

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A Comparison of Camel Dermatophilosis in Kenya and Sudan ^a