| infection by trypanosomes in marsupials and rodents associated with human dwellings in ecuador. | small mammals trapped in domestic and peridomestic environments of rural ecuador were screened for trypanosome infection by direct microscopy and hemoculture. identification of species of trypanosomes was then performed by morphological characteristics and by polymerase chain reaction (pcr) assays. of 194 animals collected, 15 were positive for infection (7.73%). eight (4.12%) were infected with trypanosoma cruzi (1 of 33 didelphis marsupialis; 7 of 61 rattus rattus). eleven r. rattus (18.03%) h ... | 2006 | 17304802 |