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 ... | 1997 | 9580115 |