Document Detail


Detection and identification of trypanosomes by polymerase chain reaction in wild tsetse flies in Cameroon.
MedLine Citation:
PMID:  9707369     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The prevalence of various species and subgroups of trypanosomes in infected flies from three sleeping sickness foci in Cameroon was determined by the use of polymerase chain reaction (PCR). The predominant tsetse species found were Glossina palpalis palpalis. Microscopical examination of 943 non-teneral tsetse flies revealed an average infection rate of 10.4%. A total of 90 flies were analyzed for trypanosome identification with primer sets specific for Trypanosoma (Trypanozoon) brucei s.l., T. (Duttonella) vitax, T. (Nannomonas) simiae, and forest type T. (Nannomonas) congolense. PCR succeeded in identifying 52 of the 90 infected flies. Other primers were also tested on microscope positive/PCR-negative infections, and trypanosome subgroups were detected (Kilifi type and savannah type T. congolense). PCR amplification allowed identification of immature infections and revealed mixed-infections. The PCR technique failed to identify 42.2% (38/90) of the parasitologically positive flies and the reasons for this failure are discussed.
Authors:
I Morlais; P Grebaut; J M Bodo; S Djoha; G Cuny; S Herder
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Acta tropica     Volume:  70     ISSN:  0001-706X     ISO Abbreviation:  Acta Trop.     Publication Date:  1998 Jun 
Date Detail:
Created Date:  1998-10-06     Completed Date:  1998-10-06     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370374     Medline TA:  Acta Trop     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  109-17     Citation Subset:  IM    
Affiliation:
Laboratoire d'Epidémiologie des Maladies à Vecteurs, Centre ORSTOM, Montpellier, France. cuny@orstom.rio.net
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MeSH Terms
Descriptor/Qualifier:
Animals
Cameroon
Female
Insect Vectors / parasitology*
Male
Polymerase Chain Reaction*
Predictive Value of Tests
Trypanosoma / isolation & purification*
Trypanosoma brucei brucei / isolation & purification
Trypanosoma congolense / isolation & purification
Trypanosoma vivax / isolation & purification
Tsetse Flies / parasitology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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