Objective To obtain a preliminary understanding of the genotype characteristics of Toxoplasma gondii infecting people with HIV in Longling County,Yunnan Province. Methods T.gondii genes were extracted with a DNA extraction kit from people with HIV in Longling County.Nested PCR was used to amplify the SAG2genes of T.gondii(241bp and 221bp).Amplification products were subjected to 1.5% agarose gel electrophoresis and observed under a UV projector.A DNA Gel Extraction Kit was used to digest recovered PCR produ...