| sylvatic focus of american trypanosomiasis in the state of morelos, mexico. | wild vectors and reservoir hosts of trypanosoma cruzi were surveyed from february 1993 to june 1994 in ticumán (18 degrees 46'n, 99 degrees 07'w), mexico (deciduous tropical forest). direct faeces examination showed that 87% of triatoma pallidipennis hosted the parasite; t. cruzi forms were present in cultures inoculated with faeces of fifty 67% triatomine bugs and thirty cd-1 strain mice (10 d old) inoculated (peritoneum) with faeces of positive insects t. cruzi amastigotes were found in heart ... | 2001 | 11935921 |