I. Collected studies on the insect transmission of Trypanosoma evansi

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Govt. Print. Off. , Washington
Flies as carriers of disease., Trypanosoma., Mosquitoes., Ant
Other titlesSummary of experiments in the transmission of anthrax by biting flies.
Statementby M. Bruin Mitzmain. II. Summary of experiments in the transmission of anthrax by biting flies, by M. Bruin Mitzmain.
Series[U.S.] Hygienic Laboratory. Bulletin, no. 94
LC ClassificationsRA421 .U4 no. 94
The Physical Object
Pagination53 p.
ID Numbers
Open LibraryOL6572462M
LC Control Number14030700

Get this from a library. Collected studies on the insect transmission of Trypanosoma evansi. [Bruce Mayne; Hygienic Laboratory (U.S.)]. Trypanosoma evansi is a species of excavate trypanosome in the genus Trypanosoma that causes one form of surra in animals. It has been proposed that T.

evansi is—like T. equiperdum—a derivative of T. brucei. Due to this loss of part of the mitochondrial (kinetoplast) DNA T. evansi is not capable of infecting the invertebrate vector and establishing the Class: Kinetoplastea.

Jennifer L. Davis, in Equine Ophthalmology (Second Edition), Trypanosomiasis. Trypanosoma evansi is a protozoal parasite that causes a chronic wasting syndrome in horses and numerous other species, including cattle and dogs.

Less frequently, it can cause a severe encephalitis or myeloencephalitis with asymmetric leukoencephalomalacia, edema. Experimental Transmission of Surra by Lice.

The Carabao is a variety of the Indian buffalo (Bubalus bubalis) and is commonly regarded as being indigenous to the Philippines. The author's first enquiry was into the dispersal of the lice of this buffalo and their role in the transmission of Trypanosoma evansi.

The transmission of T. lewisi by the agency of lice has been effected by Cited by: 6. Trypanosoma evansi- Source Epidemiology.

Surra is enzootic in Africa, the Middle East, many parts of Asia, and Central and South America. evansi has a wide host range. In some countries incidence of surra increases significantly during the season when biting fly populations have greatly Size: KB.

This paper reviews the transmission modes of Trypanosoma worldwide distribution is attributed to mechanical transmission. While the role of tabanids is clear, we raise questions on the relative role of Haematobia sp. and the possible role of Stomoxys sp. in delayed transmission. A review of the available trypanocidal drugs and their efficacy in various host Cited by: The aims of this study were to investigate Trypanosoma evansi venereal transmission in ewes and its presence in ram’s semen and hematological and biochemical alterations.

Trypanosoma evansi, the agent of “surra,” is a salivarian trypanosome, originating from is thought to derive from Trypanosoma brucei by deletion of the maxicircle kinetoplastic DNA (genetic material required for cyclical development in tsetse flies).

It is mostly mechanically transmitted by tabanids and stomoxes, initially to camels, in sub-Saharan by: Trypanosoma brucei is a species of parasitic kinetoplastid belonging to the genus parasite is the cause of a vector-borne disease of vertebrate animals, including humans, carried by genera of tsetse fly in sub-Saharan Africa.

In humans T. brucei causes African trypanosomiasis, or sleeping animals it causes animal trypanosomiasis, also called Class: Kinetoplastea.

Trypanosomiasis in India • Two cases of self-limiting febrile illness due to Trypanosoma lewisi reported of an adult couple who lived in a rat-infested village •symptoms resolved without specific treatment after two to three days • the first case of human Trypanosoma evansi -- induced trypanosomiasis was formally identified in.

Epidemiological studies (parasitological, serological and molecular techniques) of Trypanosoma evansi infection in camels (Camelus dromedarius) in Egypt Ahmed Abdel-Rady Department of Animal Medicine, Infectious diseases, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt Abstract Trypanosomosis in camel caused by Trypanosoma.

Comparative biochemical studies on natural Trypanosoma evansi infection in she-camels Article (PDF Available) in Comparative Clinical Pathology 21(5) October with 93 Reads. Trypanosoma evansi belongs to the genus Trypanosoma, subgenusTrypanozoon (salivariansection)togetherwith (i)brucei,oneoftheagentsofadiseasecalled Naganainlivestock,andforwhichwildanimalsoften actasareservoir;Naganaisacomplexofdiseasesdue toanumberofTrypanosomaspecies File Size: 5MB.


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STUDIES ON THE SEROLOGICAL DIAGNOSIS OF TRYPANOSOMA EVANSI By B. GILL* Wellcorm Laboratories of Tropical Medicim, London INTRODUCTION Advances made in the recent years in immunological techniques have revived interest in the immunity of by: Trypanosoma [tri″pan-o-so´mah] a multispecies genus of protozoa parasitic in the blood and lymph of invertebrates and vertebrates, including humans; most species live part of their life cycle in the intestines of insects and other invertebrates, the typical adult stage being found only in the vertebrate host.

gambien´se and T. rhodesien´se cause. African animal trypanosomosis, transmitted cyclically by tsetse flies or mechanically by other biting flies, causes serious inflictions to livestock health.

This study investigates the extent of non-tsetse transmitted animal trypanosomosis (NTTAT) by Trypanosoma (T.) evansi and T. vivax in domestic animals in the tsetse-free regions of Cited by: Trypanosoma evansi, the agent of “surra,” is a salivarian trypanosome, originating from Africa.

It is thought to derive from Trypanosoma brucei by deletion of the maxicircle kinetoplastic DNA (genetic material required for cyclical development in tsetse flies). It is mostly mechanically transmitted by tabanids and stomoxes, initially to camels, in sub-Saharan by: Trypanosoma evansi is the causative agent of surra disease, one of the most widespread trypanosomal diseases.

The disease is endemic in many parts of Africa and Asia where * Fluorogenic data should be collected during this step through the FAM and VIC channels International Units No international units 2 x per µl 2 x per µl 2 x.

trypanosomosis with T.

Description I. Collected studies on the insect transmission of Trypanosoma evansi EPUB

evansi, which is due to poorly characterized symptoms. For these reasons, T. evansi is rarely looked for and then, rarely detected. The study of its geographical distribution, host and vector range and relative prevalence, other ways of transmission and medical and economic impacts, are necessary preliminary.

organisms of the subgenus Trypanozoon (except equiperdum) were evansi (11). Trypanosoma evansi may have originated in Africa, evolving from brucei (12) when camels entered the tsetse belt south of the Sahara, and the disease spread through camel herds as a result of transmission by biting flies.

A small trypanosome was met with in the blood of a buffalo and its morphology differed widely from that of the usual type ofT. evansi. A biological study of the organism was made on small laboratory and large animals, which also indicated that the trypanosome was different fromT.

evansi. It is considered that the organism studied is a variant ofT. evansi if not Cited by: 1. Chagas disease, also known as American trypanosomiasis, is a tropical parasitic disease caused by Trypanosoma cruzi.

It is spread mostly by insects known as Triatominae, or "kissing bugs". The symptoms change over the course of the infection. In the early stage, symptoms are typically either not present or mild, and may include fever, swollen lymph nodes, headaches, or Pronunciation: /ˈtʃɑːɡəs/, Portuguese pronunciation:.

African animal trypanosomes LIFE CYCLES. Insects are usually involved in the natural transmission of the African pathogenic trypanosomes with which we are concerned in this field guide. When this is the case, the life cycle has two phases, one in the insect vector and one in the mammalian host.

Trypanosoma evansi has multiple and complex means of transmission depending on the host and the geographical area. Biting and sucking insects transmit the parasite mechanically and the transmission can be vertical, horizontal, iatrogenic, or per-oral, each of which has different epidemiological significance depending on the season, location Cited by: 8.

SUMMARY The hemoflagellates, Trypanosoma spp. and Leishmania spp., are causal agents of a number of parasitic diseases having a major impact on humans and domestic animals over vast areas of the globe. Among the diseases are some of the most pernicious and deadly of human afflictions: African sleeping sickness, Chagas' disease, kala-azar, and Cited by: The parasite causes a disease called Gambian or West-African sleeping sickness in human-beings.

The disease African sleeping sickness was first described by Atkins in and Winterbottom inbut the causative parasite was described in human blood by Forde in and later on named as T.

gambiense by Dutton in Abstract. The pathology of Trypanosoma evansi infection was studied in Swiss albino mice using cattle isolate of the parasite. Sixteen Swiss albino mice were used in the experiment and were divided into two groups viz. infected group (I) and uninfected healthy control group (II) comprising 12 and four mice, by: Trypanosoma evansi: Genetic variability detected using Amplified Restriction Fragment Length Polymorphism (AFLP) and Random Amplified Polymorphic DNA (RAPD) analysis of Kenyan isolates.

Daniel K. Masiga1, 2, Kariuki Ndung’u3, Alison Tweedie4, Andrew Tait4 and C. Michael R. Turner1,4* 1. Introduction. evansi is a widely-distributed, monomorphic protozoan which infects large animals such as equines, camels, dogs, cattle and deer. Epidemics of the disease called ‘surra’ which is caused by T.

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evansi infections results in the death of thousands of animals amongst which horses are the most susceptible. evansi is geographically distributed in Asia, Africa and South. the species Trypanosoma evansi, the aetiological agent of surra - a form of animal trypanosomiasis. A battery of assays samples collected on the, and (templates diluted 1/).

Lane 7 to Blood samples collected on the The mode of transmission of T. evansi in this patient remains unconfirmed. The global expansion of Chagas disease is due to the constant migration of individuals from endemic countries with incidence of vector and nonvector transmission of Trypanosoma cruzi.

The disease is present in its various stages: chronological characteristic signs and symptoms of the infection and its mechanism of immune system and cell and tissue damage. The first Author: María Elena Villagran-Herrera, José Alejandro Martínez-Ibarra, Manuel Sánchez-Moreno, Hebert Luis He.Transmission by Blood Transfusion: † Single, poorly documented case of transmission by blood transfusion Cases/Frequency in Population: † WHO estimates that nearly half a million people carry this infection, albeit underreported.

Incubation Period: † Local signs present days to weeks following bite of infected tsetse fly.Rev. sci. tech. Off. int. Epiz.,11 (1), Eleventh International Meeting on Trypanosoma evansi: Report of the Working Group * Paris, 17 May L.

TOURATIER ** Summary: Three objectives have been achieved by the Working Group since.