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genetic structure of triatoma sordida (hemiptera: reduviidae) domestic populations from bolivia: application on control interventions.the genetic population of triatoma sordida group 1, a secondary vector of chagas disease in bolivia, was studied by multi-locus enzyme electrophoresis. a total of 253 nymphal and adult specimens collected from seven neighbouring localities in the velasco province, department of santa cruz, were processed. the relatively low genetic variability was confirmed for this species (rate of polymorphism: 0.20). the absence of genetic disequilibrium detected within the seven localities was demonstrated. ...199910348981
low probability of transmission of trypanosoma cruzi to humans by domiciliary triatoma sordida in bolivia.the role of triatoma sordida in the domestic transmission of trypanosoma cruzi was assessed in 7 rural localities in velasco province, department of santa cruz, bolivia. tri. sordida, the only triatomine species identified in these localities, was found inside 58.0% of houses but not in large numbers (3.1 bugs per infested house on average). a total of 220 faecal samples from domiciliary bugs was examined microscopically and by the polymerase chain reaction for the presence of trypanosomes: 21.4 ...19979580115
trypanosoma cruzi genotypes associated with domestic triatoma sordida in bolivia.triatoma sordida is the second species of triatominae considered of epidemiological significance in bolivia. associated with triatoma infestans in various regions, it is as yet the only triatomine species established in human dwellings in localities of velasco province, department of santa cruz. this domestication is considered as primary. flagellate parasites were detected in 16.2% of domiciliary t. sordida and the kdna-pcr confirmed the presence of trypanosoma cruzi. frequencies of t. cruzi cl ...19989879736
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