PART V-THE TRYPANOSOME INFECTION RATE IN

2009 ◽  
Vol 104 (5) ◽  
pp. 157-161
Keyword(s):  
Infection Rate ◽  
Trypanosome Infection ◽  
Trypanosome Infection Rate

Field studies of Glossina morsitans Westw. (Dipt., Glossinidae) in relation to Rhodesian sleeping sickness in N'gamiland, Botswana

1972 ◽  
Vol 62 (2) ◽  
pp. 183-193 ◽  
Author(s):  
Frank L. Lambrecht
Keyword(s):  
Trypanosoma Brucei ◽  
Infection Rate ◽  
Field Studies ◽  
Epidemiological Studies ◽  
Sleeping Sickness ◽  
Trypanosome Infection ◽  
Glossina Morsitans ◽  
Seasonal Movements ◽  
Main Pathway ◽  
Trypanosome Infection Rate

Epidemiological studies of Rhodesian sleeping sickness and its vector Glossina morsitans Westw. were made near Motsowi in the western floodplains of the Okovango Swamps, Botswana, during 1967–68. The low apparent densities of the fly (12–27 in three fly rounds compared with 124 in a fourth located in a more densely forested area to the east) and low recapture rates (1·3–3·9%) indicated the Motsowi area to be a feeding ground. Peak densities in January and troughs in October reflected seasonal movements of the fly to and from their dry-season retreats to the east. Most bloodmeals (61%) were on warthog, but 5·5% were on reedbuck in which the Trypanosoma brucei infection rate was 33%. In the Motsowi area the total trypanosome infection rate in G. morsitans was 5·7%,, with T. brucei 0·6%, but the rate varied between localities elsewhere in the Okovango. Man's movements into the fly areas to the east offer the main pathway for transmission of T. brucei, perhaps aided by seasonal movements of reedbuck closer to the settlements. The incidence of human trypanosomiasis is therefore unlikely to be reduced by insecticide campaigns in the farming areas, but livestock will benefit from a reduction in cattle trypanosomiasis.

Trypanosome infection rate in cattle at Nguruman, Kenya

1999 ◽  
Vol 81 (2) ◽  
pp. 107-117 ◽  
Author(s):  
R.A. Tarimo-Nesbitt ◽  
T.K. Golder ◽  
R.D. Dransfield ◽  
M.F. Chaudhury ◽  
R. Brightwell
Keyword(s):  
Infection Rate ◽  
Trypanosome Infection ◽  
Trypanosome Infection Rate

scholarly journals Trypanosome Infection Rate in Glossina tachinoides: Infested Rivers of Limmu Kosa District Jimma Zone, Western Ethiopia

2020 ◽  
Author(s):  
behablom meharenet ◽  
Dereje Alemu
Keyword(s):  
Infection Rate ◽  
Cross Sectional Study ◽  
Tsetse Fly ◽  
Tsetse Flies ◽  
Trypanosome Infection ◽  
Glossina Tachinoides ◽  
Cross Sectional ◽  
Jimma Zone ◽  
Study Methodology ◽  
Trypanosome Infection Rate

Abstract Objective : Trypanosomosis is a disease of domestic animals and humans resulting from infection with parasitaemic protozoa of the genus Trypanosoma transmitted primarily by tsetse flies. A cross-sectional study was conducted from January-March 2018, to estimate the infection rate of trypanosome in Glossina tachinoides , their distribution, magnitude and involved trypanosome species in Limmu Kosa District of Jimma zone. Methodology and result : Study methodology involved entomological survey using monoconical traps to study the magnitude of Fly density Flay/Trap/Day (FTD) and tsetse fly dissection to estimate infection rate of trypanosome in vector flies. The study result indicated that there was only one species of Tsetse fly Glossina tachinoides detected with FTD=4.45. From total of (n=284) dissected Glossina tachinoides flies only (n= 5) positive for Trypanosome resulting in 1.76% Infection Rate. Peak trypanosome infections were observed in female tsetse 2.04%, n=4 and 1.14%, n=1 in males. Furthermore, 1.06% Glossina tachinoides were infected by Trypanosome vivax and the remaining 0.70% was Trypanosome congolense . Keywords : Limmu Kosa District, Trypanosome, Infection Rate, Glossina tachinoides

scholarly journals Trypanosome Infection Rate in Glossina tachinoides: Infested Rivers of Limmu Kosa District Jimma Zone, Western Ethiopia

2019 ◽  
Author(s):  
Behablom Meharenet ◽  
Dereje Alemu
Keyword(s):  
Infection Rate ◽  
Parasite Species ◽  
Domestic Animals ◽  
Tsetse Fly ◽  
Tsetse Flies ◽  
Trypanosome Infection ◽  
Glossina Tachinoides ◽  
Jimma Zone ◽  
Western Ethiopia ◽  
Trypanosome Infection Rate

Abstract Objective: Trypanosomosis is a disease of domestic animals and humans resulting from infection with parasitaemic protozoa of the genus Trypanosoma transmitted primarily by tsetse flies and other hematophagous flies. The study was conducted to estimate the infection rate of trypanosome in vector flies and involved parasite species. Result: The study result indicated that there was only one species of Tsetse fly Glossinatachinoides detected with high Flay/Trap/Day = 4.45. Total of n=284 tsetse flies were dissected and n= 5 positive for Glossinatachinoidesresulting in 1.76% infection rate. Higher trypanosome infections were observed in female tsetse with significant infection rate of 1.41%, n=4 and 0.35%, n=1 in males. Furthermore, 1.06% of the trypanosome infections carried by Glossinatachinoides were classified as Trypanosomavivax and the remaining 0.70% was Trypanosomacongolense.The study confirmed the absence of human trypanosomosis in study area with only identified trypanosome parasites were Trypanosomavivax and Trypanosomacongolense. However, the resulted FTD= 4.45 recommend control and suppression of the vector and parasite is mandatory due to Pathogenic Animal Trypanosomosis.

scholarly journals The resurgence of trypanosomosis in Botswana : short communication

2001 ◽  
Vol 72 (4) ◽  
Author(s):  
S.P. Sharma ◽  
T.C. Losho ◽  
M. Malau ◽  
K.G. Mangate ◽  
K.B. Linchwe ◽  
...  
Keyword(s):  
Infection Rate ◽  
Control Strategy ◽  
Short Communication ◽  
Buffy Coat ◽  
Trypanosome Infection ◽  
Tsetse Control ◽  
Blood Smears ◽  
Parasitological Survey ◽  
Trypanosome Infection Rate ◽  
Thin Blood Smears

No sleeping sickness or nagana cases have been reported in Botswana since 1985. In view of several confirmed clinical cases of nagana and reports of heavy bovine mortality, a parasitological survey was conducted to determine the prevalence of trypanosome infection in cattle in Maun and Shakawe areas of Ngamiland district. Wet blood films, buffy coat and Giemsa-stained thick and thin blood smears were used to detect trypanosomes in animals. Overall,trypanosome infection rate was 15.98%, with 5.94% and 27.29% in Maun and Shakawe respectively. The urgent need to combat trypanosomosis in Ngamiland, particularly in the Shakawe area, is highlighted, and a 3-phase integrated tsetse control strategy for this disease problem is discussed.

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