Investigation of Virulence-Related Markers in Atypical Strains of from Brazil.

is an obligate intracellular protozoan parasite distributed worldwide that infects a wide range of warm-blooded animals, including humans. Recent studies sought to clarify the relationship between the alleles GRA15, ROP5, ROP16, ROP17, and ROP18 and the virulence of isolates in mice. This work aims to analyze the variability of genes that express virulence proteins of 103 strains.