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Cattle from 50 farms in Mukono County, Uganda, were monitored for trypanosomes every second month over an 18-month period (1995–1996) by mini-anion exchange chromatography and haematocrit centrifugation techniques. Eighteen trypanosome isolates collected from cattle during this period were charac...


Olila, D.McDermott, John J.Eisler, M.C.Mitema, E.S.Patzelt, R.J.Clausen, P.H.Poetzsch, C.J.Zessin, K.H.Mehlitz, D.Peregrine, A.S.[Drug sensitivity of trypanosome populations from cattle in a peri-urban dairy production system in Uganda]Drug sensitivity of trypanosome populations from cattle in a peri-urban dairy production system in Uganda

This study assessed the degree of isometamidium resistance of trypanosomes infecting cattle in the upper Didessa valley of western Ethiopia. An initial prevalence study was conducted to identify sites with a high risk of trypanosmosis in cattle. The trypanosome prevalence varied widely, with t...


Tewelde, N.Abebe, G.Eisler, M.C.McDermott, John J.Greiner, M.Afework, Y.Kyule, M.Munstermann, S.Zessin, K.H.Clausen, P.H.[Application of field methods to assess isometamidium resistance of trypanosomes in cattle in western Ethiopia]Application of field methods to assess isometamidium resistance of trypanosomes in cattle in western Ethiopia

Field studies were conducted to assess the occurrence of resistance to isometamidium chloride and diminazene aceturate in trypanosomes infecting cattle in Kenedougou Province of Burkina Faso. Forty-five of the 166 villages in Kenedougou were randomly sampled and visited to assess livestock numb...


McDermott, John J.Woitag, T.Sidibe, I.Bauer, B.Diarra, B.Ouédraogo, D.Kamuanga, M.Peregrine, A.S.Eisler, M.C.Zessin, K.H.[Field studies of drug-resistant cattle trypanosomes in Kenedougou Province, Burkina Faso]Field studies of drug-resistant cattle trypanosomes in Kenedougou Province, Burkina Faso

Testing of trypanocidal drug sensitivity in stabilates of pathogenic trypanosomes derived from cattle continues to be problematic, in spite of Development of in vitro techniques, since these are generally complicated and costly for the resources available in developing country laboratories. Furth...


Geerts, S.Ndung'u, J.M.Murilla, G.Mbwambo, H.Sinyangwe, L.Machila, N.Delespaux, V.Brandt, J.Peregrine, A.S.McDermott, John J.Holmes, P.H.Eisler, M.C.[A simplified cost-effective method for area-wide testing of trypanocidal drug sensitivity of T. congolense in mice]A simplified cost-effective method for area-wide testing of trypanocidal drug sensitivity of T. congolense in mice

Resistance to the drugs used to control African animal trypanosomosis is increasingly recognised as a constraint to livestock production in sub-Saharan Africa. The most commonly used tests for detection of trypanocidal drug resistance are tests using mice or ruminants, but these suffer from lack ...


Eisler, M.C.Brandt, J.Bauer, B.Clausen, P.H.Delespaux, V.Holmes, P.H.Ilemobade, A.Machila, N.Mbwambo, H.McDermott, John J.Mehlitz, D.Murilla, G.Ndung'u, J.M.Peregrine, A.S.Sidibe, I.Sinyangwe, L.Geerts, S.[Standardised tests in mice and cattle for the detection of drug resistance in tsetse-transmitted trypanosomes of African domestic cattle]Standardised tests in mice and cattle for the detection of drug resistance in tsetse-transmitted trypanosomes of African domestic cattle

Drug resistant trypanosome infections in livestock have been Reported from 13 sub-Saharan countries so far, in eight of which multiple resistance occurs. Since new trypanocides are unlikely to appear on the market in the near future, information about the occurrence, extent and impact of drug res...


Gall, Y.Woitag, J.Bauer, B.Sidibe, I.McDermott, John J.Eisler, M.C.Mehlitz, D.Clausen, P.H.[Detection of trypanocide failure in cattle: Diagnostic potential of PCR compared to parasitological methods]Detection of trypanocide failure in cattle: Diagnostic potential of PCR compared to parasitological methods

Trypanocidal drugs are the most widely applied method of trypanosomosis control in Africa and the only control method in Latin America and Asia . Treatment recommendations and strategies for chemotherapeutic control of trypanosomosis depends on information of trypanosomosis risk and the prevalenc...


Eisler, M.C.McDermott, John J.Mdachi, R.Murilla, G.Sinyangwe, L.Mubanga, J.Machila, N.Mbwambo, H.Coleman, P.G.Clausen, P.H.Bauer, B.Sidibe, I.Geerts, S.Holmes, P.H.Peregrine, A.S.[Rapid method for the assessment of trypanocidal drug resistance in the field]Rapid method for the assessment of trypanocidal drug resistance in the field

Chemotherapy is the single most important strategy for the control of trypanosomosis in African livestock. Trypanocidal drug resistance is a growing problem across much of sub-Saharan Africa and increasingly recognised as a major threat to livestock production. It is therefore of pressing importa...


Coleman, P.G.Eisler, M.C.McDermott, John J.Murphy, N.B.Majiwa, P.A.O.Peregrine, A.S.[Relative fitness in laboratory mice of drug resistant and drug-sensitive field isolates of Trypanosoma congolense]Relative fitness in laboratory mice of drug resistant and drug-sensitive field isolates of Trypanosoma congolense

Tsetse-transmitted trypanosomosis affects cattle production over approximately 10 million km2 of Africa. In these areas, trypanocidal drugs, both prophylactic and curative, are the most widely used methods of trypanosomosis control. However, resistance of trypanosomes to the 3 trypanocidal drugs ...


McDermott, John J.Coleman, P.G.Eisler, M.C.Peregrine, A.S.[The effects of resistance to trypanocidal drugs on trypanosome transmission]The effects of resistance to trypanocidal drugs on trypanosome transmission

The identification and tracking of sub-populations through time and space are critical to fully understanding the epidemiology of parasitic diseases. However, very little is known about the structure, distribution and dynamics of trypanosome populations in the field. Most laboratory studies that ...


Coleman, P.G.McDermott, John J.[Trypanosome population biology - an approach to support the control of drug resistance and integrated trypanosomosis control]Trypanosome population biology - an approach to support the control of drug resistance and integrated trypanosomosis control

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