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Fetene E, Leta S, Regassa F, Büscher P. Global distribution, host range and prevalence of Trypanosoma vivax: a systematic review and meta-analysis. Parasit Vectors 2021; 14:80. [PMID: 33494807 PMCID: PMC7830052 DOI: 10.1186/s13071-021-04584-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 01/06/2021] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Trypanosomosis caused by Trypanosoma vivax is one of the diseases threatening the health and productivity of livestock in Africa and Latin America. Trypanosoma vivax is mainly transmitted by tsetse flies; however, the parasite has also acquired the ability to be transmitted mechanically by hematophagous dipterans. Understanding its distribution, host range and prevalence is a key step in local and global efforts to control the disease. METHODS The study was conducted according to the methodological recommendations of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) checklist. A systematic literature search was conducted on three search engines, namely PubMed, Scopus and CAB Direct, to identify all publications reporting natural infection of T. vivax across the world. All the three search engines were screened using the search term Trypanosoma vivax without time and language restrictions. Publications on T. vivax that met our inclusion criteria were considered for systematic review and meta-analysis. RESULT The study provides a global database of T. vivax, consisting of 899 records from 245 peer-reviewed articles in 41 countries. A total of 232, 6277 tests were performed on 97 different mammalian hosts, including a wide range of wild animals. Natural infections of T. vivax were recorded in 39 different African and Latin American countries and 47 mammalian host species. All the 245 articles were included into the qualitative analysis, while information from 186 cross-sectional studies was used in the quantitative analysis mainly to estimate the pooled prevalence. Pooled prevalence estimates of T. vivax in domestic buffalo, cattle, dog, dromedary camel, equine, pig, small ruminant and wild animals were 30.6%, 6.4%, 2.6%, 8.4%, 3.7%, 5.5%, 3.8% and 12.9%, respectively. Stratified according to the diagnostic method, the highest pooled prevalences were found with serological techniques in domesticated buffalo (57.6%) followed by equine (50.0%) and wild animals (49.3%). CONCLUSION The study provides a comprehensive dataset on the geographical distribution and host range of T. vivax and demonstrates the potential of this parasite to invade other countries out of Africa and Latin America.
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Affiliation(s)
- Eyerusalem Fetene
- College of Veterinary Medicine and Agriculture, Addis Ababa University, P. O. Box 34, Bishoftu, Ethiopia
| | - Samson Leta
- College of Veterinary Medicine and Agriculture, Addis Ababa University, P. O. Box 34, Bishoftu, Ethiopia.
| | - Fikru Regassa
- College of Veterinary Medicine and Agriculture, Addis Ababa University, P. O. Box 34, Bishoftu, Ethiopia.,FDRE Ministry of Agriculture, P.O.Box 62347/3735, Addia Ababa, Ethiopia
| | - Philippe Büscher
- Institute of Tropical Medicine, Department of Biomedical Sciences, Nationalestraat 155, 2000, Antwerp, Belgium
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Peters SO, Hussain T, Adenaike AS, Hazzard J, Morenikeji OB, De Donato M, Paul S, Babar M, Yakubu A, Imumorin IG. Evolutionary Pattern of Interferon Alpha Genes in Bovidae and Genetic Diversity of IFNAA in the Bovine Genome. Front Immunol 2020; 11:580412. [PMID: 33117386 PMCID: PMC7561390 DOI: 10.3389/fimmu.2020.580412] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 08/24/2020] [Indexed: 11/13/2022] Open
Abstract
Interferons are secretory proteins induced in response to specific extracellular stimuli which stimulate intra- and intercellular networks for regulating innate and acquired immunity, resistance to viral infections, and normal and tumor cell survival and death. Type 1 interferons plays a major role in the CD8 T-cell response to viral infection. The genomic analysis carried out here for type I interferons within Bovidae family shows that cattle, bison, water buffalo, goat, and sheep (all Bovidae), have different number of genes of the different subtypes, with a large increase in the numbers, compared to human and mouse genomes. A phylogenetic analysis of the interferon alpha (IFNA) proteins in this group shows that the genes do not follow the evolutionary pattern of the species, but rather a cycle of duplications and deletions in the different species. In this study we also studied the genetic diversity of the bovine interferon alpha A (IFNAA), as an example of the IFNA genes in cattle, sequencing a fragment of the coding sequence in 18 breeds of cattle from Pakistan, Nigeria and USA. Similarity analysis allowed the allocation of sequences into 22 haplotypes. Bhagnari, Brangus, Sokoto Gudali, and White Fulani, had the highest number of haplotypes, while Angus, Hereford and Nari Master had the least. However, when analyzed by the average haplotype count, Angus, Bhagnari, Hereford, Holstein, Muturu showed the highest values, while Cholistani, Lohani, and Nari Master showed the lowest values. Haplotype 4 was found in the highest number of individuals (74), and in 15 breeds. Sequences for yak, bison, and water buffalo, were included within the bovine haplotypes. Medium Joining network showed that the sequences could be divided into 4 groups: one with highly similar haplotypes containing mostly Asian and African breeds, one with almost all of the Bos taurus American breeds, one mid-diverse group with mostly Asian and African sequences, and one group with highly divergent haplotypes with five N'Dama sequences and one from each of White Fulani, Dhanni, Tharparkar, and Bhagnari. The large genetic diversity found in IFNAA could be a very good indication of the genetic variation among the different genes of IFNA and could be an adaptation for these species in response to viral challenges they face.
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Affiliation(s)
- Sunday O. Peters
- Department of Animal Science, Berry College, Mount Berry, GA, United States
- Department of Animal and Dairy Science, University of Georgia, Athens, GA, United States
| | - Tanveer Hussain
- Department of Molecular Biology, Virtual University of Pakistan, Lahore, Pakistan
| | - Adeyemi S. Adenaike
- Department of Animal Breeding and Genetics, Federal University of Agriculture, Abeokuta, Nigeria
| | - Jordan Hazzard
- Department of Animal Science, Berry College, Mount Berry, GA, United States
| | - Olanrewaju B. Morenikeji
- Department of Biomedical Sciences, Rochester Institute of Technology, Rochester, NY, United States
- Department of Biology, Hamilton College, Clinton, NY, United States
| | - Marcos De Donato
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Queretaro, Mexico
| | - Sujay Paul
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Queretaro, Mexico
| | - Masroor Babar
- Department of Molecular Biology, Virtual University of Pakistan, Lahore, Pakistan
| | | | - Ikhide G. Imumorin
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, United States
- Department of Biological Sciences, First Technical University, Ibadan, Nigeria
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Ganyo EY, Boampong JN, Masiga DK, Villinger J, Turkson PK. Haematology of N'Dama and West African Shorthorn cattle herds under natural Trypanosoma vivax challenge in Ghana. F1000Res 2018; 7:314. [PMID: 30228875 PMCID: PMC6117849 DOI: 10.12688/f1000research.14032.2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/02/2018] [Indexed: 11/20/2022] Open
Abstract
Background: Animal trypanosomosis is a major cause of economic loss in livestock production in Africa. A suggested control measure is to use breeds with traits of trypanotolerance. The study examines the effect of natural
Trypanosoma vivax challenge on haematological parameters in two trypanotolerant cattle [N’Dama and West African Shorthorn (WASH)] herds. Methods: Trypanosoma vivax-specific primers were used to diagnose
T. vivax infection in an N’Dama herd at Cape Coast in southern Ghana and a WASH herd at Chegbani in northern Ghana from May to July 2011 in a cross-sectional study. Levels of haematological parameters comprising packed cell volume (PCV), haemoglobin (Hb) concentration and red blood cell (RBC) and total white blood cell (TWBC) counts; differential WBC counts (neutrophils, lymphocytes, eosinophils, monocytes and basophils); and RBC indices of mean corpuscular volume (MCV), mean corpuscular haemoglobin (MCH) and mean corpuscular haemoglobin concentration (MCHC) were determined in blood samples and then compared between infected and uninfected cattle. Results: We found that haematological indices for infected and uninfected animals in both breeds were within the normal range. However, the mean PCV values for
T. vivax-infected WASH and N’Dama were lower in infected compared to uninfected animals. The difference was significant (
p< 0.05) in N’Dama but not in WASH. Conclusion: Despite the presence of infection by
T. vivax, N’Dama and WASH cattle maintained their haematological parameters within acceptable normal ranges, which confirms their trypanotolerant trait. This highlights the need for low-input traditional African farmers in medium, high and severe tsetse challenge areas to be educated on the advantages of N’Dama and WASH breeds to increase their utilization in integrated tsetse and trypanosomosis control programmes.
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Affiliation(s)
- Ebenezer Yaw Ganyo
- Department of Biomedical and Forensic Sciences, School of Biological Sciences, University of Cape Coast, Ghana
| | - Johnson N Boampong
- Department of Biomedical and Forensic Sciences, School of Biological Sciences, University of Cape Coast, Ghana
| | - Daniel K Masiga
- International Centre of Insect Physiology and Ecology (icipe), Nairobi, Kenya
| | - Jandouwe Villinger
- International Centre of Insect Physiology and Ecology (icipe), Nairobi, Kenya
| | - Paa Kobina Turkson
- Department of Animal Science, School of Agriculture, University of Cape Coast, Ghana
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