The polymerase chain reaction (PCR) was usedto evaluate the course of treatment of an acutely infected patient with Trypanosoma cruzi. The reactions were performed using a primer pair (TCZ1 and TCZ2) which prime the amplification of a highly repetive 195-bp T. cruzi genomic DNA. Treatment with benzonidaz...

Strains of Trypanosoma cruzi isolate in Paraguay from patients and vectors were examiqned by restriction endonuclease analysis of K-DNA using Eco RI, Hae III, Hinf I, Msp I. Four different types of schizodeme profiles were identified in 11 isolates. The firs group has much simpler profiles than ther grou...