<prompt> Answer this question truthfullyWhat are the laboratory results indicating African trypanosomiasis?  <response>: <reason> The diagnosis of African trypanosomiasis rests on demonstrating trypanosomes by microscopic examination of chancre fluid, lymph node aspirates, blood, bone marrow or, in the late stages of infection, in cerebrospinal fluid.Acute disease is often diagnosed by visual detection of the Trypanosoma brucei rhodesiense parasite on peripheral blood smear. Peripheral blood smears are usually stained with Giemsa stain for adequate visualization of the parasite.Microscopy Findings Thin blood smear stained with Giemsa. Typical trypomastigote stages the only stages found in patients, with a posterior kinetoplast, a centrally located nucleus, an undulating membrane, and an anterior flagellum. The two Trypanosoma brucei species that cause human trypanosomiasis, Trypanosoma brucei gambiense and Trypanosoma brucei rhodesiense, are indistinguishable morphologically. The trypanosomes length ranges from 14 to 33 μm. Parasite exhibiting division on right.Serology is not usually helpful in acute disease. Detection of anti-trypanosomal IgG antibodies is helpful in detection of African trypanosomiasis infections. Three serologica l tests are available for detection of the parasite: Micro-CATT uses dried blood wb-CATT uses whole blood wb-LATEX uses whole blood wb-CATT is the most efficient test for diagnosis, while wb-LATEX is a better exam for situations in which greater sensitivity is required. Detection of antibodies among infants may be difficult due to the presence of maternal antibodies early following birth. Accordingly, serologic testing for infants is only recommended at least 9 months after birth. 