Prévalence de la trypanosomose chez le mouton et la chèvre dans une région du Nord-Nigéria

Daniel, A. D.; Joshua, R.A.; Kalejaiye, J. O.; Dada, A J

doi:10.19182/remvt.9091

Cited by 11 publications

(3 citation statements)

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“…In the present study, the occurrence of Trypanosoma sp. was identified in 34 animals (20%), and in Paraguay, 1 case has been reported (TOMASSI et al, 2018); In addition, the percentage of determined cases (20%) is higher than those reported in countries such as Ecuador (2%) (COELLO et al 2020), Iraq (3.3%) (HASAN, 2012), Nigeria (3.03%) (ADEMOLA & ONYIQUE, 2013) and Spain (7.4-8.4%) (DANIEL et al, 1994;RODRÍGUEZ, 2012). In contrast, the percentage of determined cases (20%) is among the cases reported in Venezuela (9.75-62.3%) (MORA & CASTRO, 2015) and below the cases reported in Brazil (25.4-78.43%) (BATISTA et al, 2009;GALIZA et al 2011), Kenya (25.3%) (NG'AYO et al, 2005), Colombia (34,8-46.2%) (AVILA et al, 2013) and a new effectiveness review is needed.…”

Section: Discussionmentioning

confidence: 90%

Natural infection of Trypanosoma sp. in domestic sheep from Ecuador

Coello-Peralta

Solórzano²,

Mazamba

et al. 2022

Cienc. Rural

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Trypanosomosis in sheep is a hemoparasitic disease of worldwide interest due to its effects on the health of animals and the economic impact on producers, is caused by the protozoan Trypanosoma sp. In the present study, the occurrence of Trypanosoma sp. in sheep from the urban-rural area of the canton Salitre was determined, through an applied study with a qualitative descriptive prospective cross-sectional approach, carried out between October 1, 2019, and February 19, 2020. Blood samples were extracted from the jugular vein and analyzed by the blood smear method using the Giemsa and Diff-Quick staining techniques. Previously, in a first study realized between 2018 and 2019, 2 cases (2%) of Trypanosoma sp., 1 case of Babesia sp. (1%), and 4 cases of Anaplasma marginale (4%) were identified, but without the presence of symptoms of the disease. However, in this new research study, of 170 animals sampled from 5 herds and aged between 3 and 8 years, 34 (20%) were positive for Trypanosoma sp., 6 for Babesia sp. (3.52%) and 6 for A. marginale (3.52%) with coinfection between them. In this research, deteriorated clinical aspects and low hematological values were also determined in positive animals; besides of the total of positive cases, 25 presented symptoms of hemoparasitic disease, 3 sheep had abortions and 8 died. The results of this study showed that Trypanosoma sp. could already become an endemic parasitosis in sheep in the country, representing a serious problem of animal health.

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Section: Discussionmentioning

confidence: 90%

Natural infection of Trypanosoma sp. in domestic sheep from Ecuador

Coello-Peralta

Solórzano²,

Mazamba

et al. 2022

Cienc. Rural

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“…27,28, 29, 30,31 Two studies investigated trypanosomiasis infection in pigs – porcine trypanosomiasis. 32, 33 Three studies investigated infection in ruminants – sheep, goat, cattle, 34,35,36 while one study investigated in dogs – canine trypanosomiasis. 37 The remaining two studies investigated infection in multiple animal hosts including monkey.…”

Section: Resultsmentioning

confidence: 99%

Prevalence of Human and Animal African Trypanosomiasis in Nigeria: A Scoping Review

Odebunmi,

Ibeachu,

Chukwudi

2024

Preprint

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Background: African trypanosomiasis continues to pose a substantial threat to both human and animal health in sub-Saharan Africa. This study examined the prevalence of African trypanosomiasis within human and animal populations in Nigeria, the trypanosome species involved, the spread of animal reservoirs, and the variability in diagnostic methodologies employed. Methodology/principal findings: A scoping review was performed, following the methodological framework outlined in PRISMA-ScR checklist. Eligible studies were explored for disease prevalence, causative parasites, reservoir hosts, and diagnostic techniques used. A total of 16 eligible studies published between 1993 and 2021 were retrieved. 13 studies reported the prevalence of African trypanosomiasis in animals, and 3 for humans. Varying prevalence rates were recorded depending on the host population and diagnostic methods employed. The overall prevalence of Animal African Trypanosomiasis (AAT) and Human African Trypanosomiasis (HAT) was 27.3% (4,404/16,117) and 3.6% (72/1,974) respectively. The highest incidence of HAT was detected using the Card Agglutination Test for Trypanosomiasis (CATT), whereas that of AAT was observed using PCR, followed by microscopy which was the most extensively employed technique in this study. The various diagnostic methods used in various studies showed a variety of sensitivities and specificities, affecting the accuracy of disease detection. Remarkably, domestic animals like cattle, pigs, and dogs were identified as potential reservoirs for the human-infective parasites (T. b. gambiense) in Nigeria. Conclusion: This study highlights the high prevalence rate and complex epidemiology of African trypanosomiasis in humans and animals in Nigeria. These findings underscore the importance of comprehensive measures involving both veterinary and human health sectors to combat African trypanosomiasis effectively in Nigeria. Only few studies have investigated the prevalence of HAT in Nigeria. Hence, adequately coordinated epidemiological surveys are imperative to ascertain the true epidemiological status of HAT in Nigeria and inform targeted intervention policies to achieve WHO’s NTD elimination targets in 2030.

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“…23,24,25,26,27 Two studies investigated trypanosomiasis infection in pigsporcine trypanosomiasis. 28,29 Three studies investigated infection in ruminants -sheep, goat, cattle, 30,31,32 while one study investigated in dogs -canine trypanosomiasis. 33 The remaining two studies investigated infection in multiple animal hosts including monkey.…”

Section: Description Of Eligible Studiesmentioning

confidence: 99%

Prevalence of Human and Animal African Trypanosomiasis in Nigeria: a Scoping Review

Odebunmi,

Ibeachu,

Chukwudi

2024

Preprint

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Background African trypanosomiasis affects both humans (HAT) and animals (AAT). HAT is an NTD targeted for elimination in 2030, and has not been officially reported by WHO from Nigeria in the last decade despite frequent reports of animal carriers. Conversely, the burden of AAT continues to increase. This study synthesized published evidence on the prevalence of African trypanosomiasis within human and animal populations in Nigeria, the trypanosome species involved, the spread of animal reservoirs, and the variability in diagnostic methodologies employed. Methodology/principal findings A scoping review was performed following the methodological framework outlined in PRISMA-ScR checklist. A total of 16 eligible studies published between 1993 and 2021 were reviewed. 13 studies reported the prevalence of AAT, and 3 for HAT. Varying prevalence rates were recorded depending on the diagnostic methods employed. The overall prevalence of HAT was 3.6%, and AAT 27.3%. The highest incidence of HAT was detected using the Card Agglutination Test for Trypanosomiasis (CATT), and AAT by PCR, followed by microscopy (the most used technique). Domestic animals like cattle, pigs, and dogs were identified as carriers of the human-infective trypanosomes (T. brucei gambiense). Conclusion This study highlights the high prevalence and complex epidemiology of African trypanosomiasis in humans and animals in Nigeria. Remarkably, published evidence indicate that HAT is highly prevalent in Nigeria despite not being reported by WHO. However, only few studies have investigated HAT in Nigeria, indicating limited disease surveillance. Unfortunately, diagnostics challenges and disease reporting protocols seem to limit HAT reporting to WHO. Therefore, adequately coordinated epidemiological surveys and targeted intervention policies are imperative to ascertain the true epidemiological status of HAT in Nigeria towards achieving WHO’s elimination targets in 2030. The presence of animal carriers of human-infective trypanosomes underscores the importance of a one-health approach to avoid breeding the next epidemic clone in Nigeria and combat African trypanosomiasis effectively.

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Prévalence de la trypanosomose chez le mouton et la chèvre dans une région du Nord-Nigéria

Cited by 11 publications

References 1 publication

Natural infection of Trypanosoma sp. in domestic sheep from Ecuador

Natural infection of Trypanosoma sp. in domestic sheep from Ecuador

Prevalence of Human and Animal African Trypanosomiasis in Nigeria: A Scoping Review

Prevalence of Human and Animal African Trypanosomiasis in Nigeria: a Scoping Review

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