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Seroprevalence and factors associated with Coxiella burnetii exposure in goats in Moretele
2023
Magadu, Rungano(University of Pretoria Faculty of Veterinary Science) | Thompson, Peter N.(University of Pretoria Faculty of Veterinary Science)
Infection with Coxiella burnetii causes significant economic impact and poses zoonotic risk to people exposed to livestock, yet few studies in South Africa have assessed seroprevalence of C. burnetii infection and no information is available for goats. Very little information is available regarding risk factors and outcomes of C. burnetii infection in peri-urban farming areas where widespread mixing of ruminants occurs. This study estimated the seroprevalence of C. burnetii infection among communally farmed goats in an area adjacent to the densely populated Gauteng province. Sera were collected from 216 goats in 39 herds, and questionnaires were completed to establish management practices as potential risk factors. C. burnetii antibody testing was done by ELISA. Thirty two out of 216 goats tested positive for C. burnetii antibodies and the overall seroprevalence, adjusted for sampling weights and clustering, was 18.4% (95% confidence interval [CI]: 12.2% - 23.5%). The intraclass correlation coefficient was 0.06, indicating low-to-moderate clustering. Multiple logistic regression showed age was significantly associated with seropositivity, with higher seroprevalence in animals ≥ 19 months old (26%) than animals ≤ 6 months old (6%) (odds ratio [OR]: 6.6; p = 0.010). We concluded C. burnetii infection is common in goats in Moretele and a potential cause of abortion in goats and poses the potential zoonotic disease risk. CONTRIBUTION: Despite the threats posed on animal health and productivity, scant information is published on C. burnetii in South Africa. This research established preliminary estimates of C. burnetii seroprevalence. The research is original from a South African perspective, relevant to Africa and focused on infectious disease in livestock.
Показать больше [+] Меньше [-]Brucellosis and chlamydiosis seroprevalence in goats at livestock-wildlife interface areas of Zimbabwe
2019
Bhandi, Solomon(University of Zimbabwe Faculty of Veterinary Science Department of Clinical Veterinary Studies,Research Platform Production and Conservation in Partnership) | Pfukenyi, Davies M.(University of Zimbabwe Faculty of Veterinary Science Department of Clinical Veterinary Studies,Research Platform Production and Conservation in Partnership) | Matope, Gift(Research Platform Production and Conservation in Partnership ,University of Zimbabwe Faculty of Veterinary Science Department of Paraclinical Veterinary Studies) | Murondoti, Absolom(University of Zimbabwe Faculty of Veterinary Science Department of Clinical Veterinary Studies) | Tivapasi, Musavengana(University of Zimbabwe Faculty of Veterinary Science Department of Clinical Veterinary Studies,Research Platform Production and Conservation in Partnership) | Ndengu, Masimba(University of Zimbabwe Faculty of Veterinary Science Department of Clinical Veterinary Studies,Research Platform Production and Conservation in Partnership) | Scacchia, Massimo(The Experimental Zooprophylactic Institute of Abruzzo and Molise) | Bonfini, Barbara(The Experimental Zooprophylactic Institute of Abruzzo and Molise) | de Garine-Wichatitsky, Michel(Research Platform Production and Conservation in Partnership ,Kasetsart University Faculty of Veterinary Medicine)
In Zimbabwe, there have been no chlamydiosis and limited brucellosis studies in goats. This study was conducted to determine the seroprevalence and risk factors of the two diseases in goats at three different livestock-wildlife interface areas: porous, non-porous and non-interface in the south-eastern lowveld of Zimbabwe. Collected sera (n = 563) were tested for Brucella antibodies using the Rose Bengal plate test (RBPT) and the complement fixation test (CFT); and for Chlamydia abortus antibodies using the CFT. All tested goats were negative for Brucella antibodies. Overall, chlamydial seroprevalence was 22%. The porous [c² = 9.6, odds ratio (OR) = 2.6, p = 0.002] and non-porous (c² = 37.5, OR = 5.8, p < 0.00001) interfaces were approximately three and six times more likely to be chlamydial seropositive than the non-interface area, respectively. Chlamydial seroprevalence was not associated with sex (c² = 0.5, OR = 1.2, p = 0.5), abortion history in female goats (c² = 0.7, OR = 1.3, p = 0.4), keeping goats with cattle (c² = 0.2, OR = 1.5, p = 0.7) or flock size (c² = 0.03, OR = 1.4, p = 0.9). Our study provides the first serological evidence of chlamydiosis in goats in Zimbabwe and the results suggest that proximity to wildlife is associated with increased chlamydial seropositivity. Further studies are required to determine the role of chlamydial infection on goat reproductive failure and that of wildlife on C. abortus transmission to domestic ruminants.
Показать больше [+] Меньше [-]Prevalence of Giardia and Cryptosporidium in young livestock and dogs in Magude District of Maputo Province, Mozambique
2019
Miambo, Regina D.(Eduardo Mondlane University Faculty of Veterinary Medicine Department of Para-Clinics,University of KwaZulu-Natal College of Agriculture, Engineering and Science School of Life Science) | Laitela, Benigna(Eduardo Mondlane University Faculty of Veterinary Medicine Department of Para-Clinics) | Malatji, Mokgadi P.(University of KwaZulu-Natal College of Agriculture, Engineering and Science School of Life Science) | Afonso, Sonia M. de Santana(Eduardo Mondlane University Faculty of Veterinary Medicine Department of Para-Clinics) | Junior, Alberto P.(Eduardo Mondlane University Faculty of Veterinary Medicine Department of Para-Clinics) | Lindh, Johan(Uppsala University Department of Cell and Molecular Biology) | Mukaratirwa, Samson(University of KwaZulu-Natal College of Agriculture, Engineering and Science School of Life Science)
BACKGROUND: Giardia and Cryptosporidium species are significant zoonotic parasites of humans and domesticated animals. OBJECTIVES: The study aimed to determine the prevalence of Giardia and Cryptosporidium in livestock and dogs of the Magude District. METHOD: The flotation technique (Willis), modified Ziehl-Neelsen (mZN) and direct and indirect immunofluorescence (DIF and IIF) techniques were applied to determine the prevalence of Giardia and Cryptosporidium species in faecal samples of dog pups (156), goat kids (60) and calves (480) from the Magude District of Mozambique from February to September 2015. RESULTS: Using Willis, IIF and DIF, the prevalence of Giardia in calves was 0%, 8.1%, and 6.0%; in dogs 0.6%, 8.3% and 5.7% and for goats 0% and 13.3% (IIF was not performed), respectively. The prevalence of Cryptosporidium in calves using Willis, mZN, IIF and DIF was 0%, 3.8%, 4.7% and 0.4% and in dogs 0%, 0.6%, 6.4% and 0.6%, respectively. The parasite was not detected in goats. CONCLUSION: Results from the present study showed that IIF performed better diagnosis of Giardia and Cryptosporidium, and that the mZN can be used as an alternative for Cryptosporidium because of the high cost of IIF. There is a need for identification of genotypes or subtypes of these parasites through application of molecular techniques in order to determine their zoonotic potential, and we advocate a 'one health' approach in the control and prevention of these parasites.
Показать больше [+] Меньше [-]Prevalence of peste des petits ruminants virus antibodies in sheep and goats sera from Central-Western Sudan
2023
Ali, Safa E.M.(Sudan University of Science and Technology College of Veterinary Medicine Department of Pathology, Parasitology and Microbiology,Global Veterinary Services and Agriculture Equine-Specialty Center) | Ahmed, Yassin A.M.(Sudan University of Science and Technology College of Veterinary Medicine Department of Pathology, Parasitology and Microbiology,Nokhbat Alnawadir Veterinary Pharmacy) | Osman, Alwia A.(Ministry of Animal Resources General Directorate of Animal Health & Epizootics Diseases Control) | Eldin, Omiema A. Gamal(Ministry of Animal Resources General Directorate of Animal Health & Epizootics Diseases Control) | Osman, Nussieba A.(Sudan University of Science and Technology College of Veterinary Medicine Department of Pathology, Parasitology and Microbiology)
Clinical signs suggestive of peste des petits ruminants (PPR) involved herds of small ruminants, which were described elsewhere in Sudan. Peste des petits ruminants was confirmed using an Immunocapture ELISA (IC-ELISA) assay in samples of infected and dead animals in areas of outbreaks. Therefore, to update information regarding the current situation and for assessment of the serological prevalence of PPR in small ruminants mingled at Central and Western Sudan during 2018-2019, 368 sera were collected from sheep (325 sera) and goats (43 sera) with different ages and breeds. These sera included 186 sera (173 sheep and 13 goats) from White Nile State and 182 sera (152 sheep and 30 goats) from Kordofan States. Competitive ELISA demonstrated higher prevalence of PPRV antibodies of 88.9%, 90.7% and 88.6% in both sheep and goats, goats, and sheep sera, respectively. Moreover, 100%, 94.7% and 78.5% seroprevalence values were demonstrated in South Kordofan, North Kordofan and White Nile States. The higher seroprevalence values detected in sera of unvaccinated sheep and goats indicated the wide exposure of these animals to PPRV and presence of protection following PPR viral infection. The findings of the study indicated that PPR is endemic in the surveyed areas of Sudan. CONTRIBUTION: The study will contribute effectively to the global eradication programme of PPR organised by the World Organization for Animal Health (WOAH, formerly OIE) and Food and Agriculture Organization (FAO). To completely eliminate PPR from Sudan by 2030, local efforts should be directed towards effectively and wholly vaccinating small ruminants using PPRV vaccine especially in routes of seasonal animal's movement and shared grazing areas.
Показать больше [+] Меньше [-]Species composition and geographic distribution of ticks infesting cattle, goats and dogs in a temperate and in a subtropical region of south-east Africa
2009
Horak, I.G.(University of Pretoria Faculty of Veterinary Science Department of Veterinary Tropical Diseases,University of the Free State Department of Zoology and Entomology) | Nyangiwe, N.(Döhne Agricultural Development Institute ,University of Pretoria Faculty of Veterinary Science Department of Veterinary Tropical Diseases) | De Matos, C.(Instituto de Investigação Agrária de Mozambique ,University of Pretoria Faculty of Veterinary Science Department of Veterinary Tropical Diseases) | Neves, L.(Universidade Eduardo Mondlane Faculdade de Veterinária)
The species and distribution of ticks infesting cattle, goats and dogs in the eastern region of the Eastern Cape Province, South Africa and Maputo Province, Mozambique were determined from collections made from these animals at 72 localities in the former region and 30 in the latter. Eleven ixodid and one argasid species were recovered in the Eastern Cape Province and 15 ixodid species in Maputo Province. The most common ticks infesting cattle and goats in both provinces were Amblyomma hebraeum, Rhipicephalus (Boophilus) microplus, Rhipicephalus appendiculatus and Rhipicephalus evertsi evertsi. The dominant species on dogs were Haemaphysalis elliptica and Rhipicephalus simus. The geographic distributions of the major species and some of the minor species in both regions were plotted. The partial or complete displacement of the indigenous tick Rhipicephalus (Boophilus) decoloratus by the introduced species R. (B.) microplus was a major feature of both surveys.
Показать больше [+] Меньше [-]The comparative prevalence of five ixodid tick species infesting cattle and goats in Maputo Province, Mozambique
2009
De Matos, C.(Instituto de Investigação Agrária de Mozambique ,University of Pretoria Faculty of Veterinary Science Department of Veterinary Tropical Diseases) | Sitoe, C.(Instituto de Investigação Agrária de Mozambique) | Neves, L.(Universidade Eduardo Mondlane Faculdade de Veterinária) | Nöthling, J.O.(University of Pretoria Faculty of Veterinary Science Department of Production Animal Studies) | Horak, I.G.(University of Pretoria Faculty of Veterinary Science Department of Veterinary Tropical Diseases,University of the Free State Department of Zoology and Entomology)
Seroprevalance of Toxoplasma gondii infection in goats and sheep in Zimbabawe
2005
Hove, T. (Zimbabwe Univ., Harare (Zimbabwe). Dept. of Paraclinical Veterinary Studies) | Lind, P. | Mukaratirwa, S.
Evaluation of isometamidium levels in the serum of sheep and goats after prophylactic treatment against trypanosomosis
2004
Wesongah, J.O. | Murilla, G.A. | Kibugu, J.K. (Kenya Trypanosomiasis Research Inst., Kikuyu (Kenya)) | Jones, T.W.
Parasites of domestic and wild animals in South Africa. XXXIX. Helminth and arthropod parasites of Angora goats in the southern Karoo [South Africa]
2001
Horak, I.G. (Pretoria Univ., Onderstepoort (South Africa). Veterinary Tropical Diseases Dept.) | Macivor, K.M.De F. | Greeff, C.J.
The establishment, composition and severity of infection of gastro-intestinal parasites and their impact on productivity of Tswana kids in southern Botswana
2001
Nsoso, S.J. | Senku, M.M. | Mine, O.M. (Botswana College of Agriculture, Gaborone (Botswana))