Trypanosoma evansi

Trypanosoma evansi
Trypanosoma evansi in blood
Scientific classification
Kingdom: Protista
Phylum: Euglenozoa
Class: Kinetoplastea
Order: Trypanosomatida
Family: Trypanosomatidae
Genus: Trypanosoma
Species: T. evansi
Binomial name
Trypanosoma evansi
Steel, 1884

Trypanosoma evansi is a protozoan trypanosome in the genus Trypanosoma that causes one form of surra in animals.[1] It has been proposed that T. evansi is—like T. equiperdum—a derivative of T. brucei.[2] Due to this loss of part of the mitochondrial (kinetoplast) DNA T. evansi is not capable of infecting the invertebrate vector and establishing the subsequent life-stages.[3][4] Due to its mechanical transmission T. evansi is not restricted to transmission via the tsetse fly but shows a very broad vector specificity including the genera Tabanus, Stomoxys, Haematopota, Chrysops and Lyperosia.[5] It rarely causes disease in humans,[6] indeed, it has only been recorded in cases where the patient lacks a normal component of human serum, Apolipoprotein L1.[7] T. evansi is very common in India and causes acute disease in camels and horses, and chronic disease in cattle and buffaloes. The treatment for trypanosoma evansi is triquin(0.025ml/10 kg B.wt.)[8] and surral (0.5 mg/kg B. wt.)

References

  1. Rjeibi, Mohamed Ridha; Ben Hamida, Taoufik; Dalgatova, Zara; Mahjoub, Tarek; Rejeb, Ahmed; Dridi, Walid; Gharbi, Mohamed (2015). "First report of surra (Trypanosoma evansi infection) in a Tunisian dog". Parasite. 22: 3. doi:10.1051/parasite/2015004. ISSN 1776-1042. PMID 25654368.
  2. Lai DH; Petritsch, W; Schreiber, F; Warnkross, H; Pietsch, B; Passath, A; Leb, G; Tilz, GP; Kellner, A (February 2008). "Adaptations of 'Trypanosoma brucei to gradual loss of kinetoplast DNA: Trypanosoma equiperdum and Trypanosoma evansi are petite mutants of T. brucei". PNAS. 105 (3): 1999–2004. doi:10.1073/pnas.0711799105. PMC 2538871Freely accessible. PMID 18245376.
  3. Borst P, Fase-Fowler F, Gibson WC (January 1987). "Kinetoplast DNA of Trypanosoma evansi". Mol Biochem Parasitol. 23 (1): 31–38. doi:10.1016/0166-6851(87)90184-8. PMID 3033499.
  4. Hoare CR (1972). "The trypanosomes of the Mammals". Blackwell, Oxford.
  5. Luckins AG (May 1988). "Trypanosoma evansi in Asia". Parasitol Today. 4 (5): 137–42. doi:10.1016/0169-4758(88)90188-3. PMID 15463067.(and references therein)
  6. Powar RM; Shegokar, VR; Joshi, PP; Dani, VS; Tankhiwale, NS; Truc, P; Jannin, J; Bhargava, A (1 January 2006). "A rare case of human trypanosomiasis caused by Trypanosoma evansi". Indian J Med Microbiol. 24 (1): 72–74. doi:10.4103/0255-0857.19904. PMID 16505565. Retrieved 2006-04-05.
  7. Benoit Vanhollebeke, Eng., Philippe Truc, Ph.D., Philippe Poelvoorde, M.Sc., Annette Pays, M.Sc., Prashant P. Joshi, M.D., Ravindra Katti, M.D., Jean G. Jannin, M.D., and Etienne Pays, Ph.D., Benoit; Truc, Philippe; Poelvoorde, Philippe; Pays, Annette; Joshi, Prashant P.; Katti, Ravindra; Jannin, Jean G.; Pays, Etienne (December 28, 2006). "Human Trypanosoma evansi Infection Linked to a Lack of Apolipoprotein L-I". N Engl J Med. 355 (26): 2752–6. doi:10.1056/NEJMoa063265. PMID 17192540.
  8. Bal, M. S.; Sharma, Amrita; Ashuma; Batth, Balwinder Kaur; Kaur, P.; Singla, L.D. (February 2014). "DETECTION AND MANAGEMENT OF LATENT INFECTION OF TRYPANOSOMA EVANSI IN A CATTLE HERD". INDIAN JOURNAL OF ANIMAL RESEARCH. 48 (1): 31–37. doi:10.5958/j.0976-0555.48.1.007.


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