Determination of Seroprevalence of Toxoplasmosis among Retinitis Patients in Khartoum State- Sudan

Toxoplasma gondii is a unique intracellular parasite, which infects a large proportion of the world's population, but clinically uncommonly causes significant disease. The present study was performed to determine the prevalence of toxoplasmosis among retinitis patients in Khartoum state. Venous blood samples were collected from 90 patients whom are clinically diagnosed with retinitis from all ages during the period from October 2015 to January 2016. Enzyme linked Immunosorbent Assay (ELISA) was used to evaluate the presence of anti-Toxoplasma IgG antibodies. ELISA giving an incidental rate of toxoplasmosis of (24.6%) (P.value= 0.031). The results showed significant differences between males (40.9%) and females (59.1%) (p.value=0.047) and all of these patients were above 50 years with strong correlation between eating raw meat and toxoplasmosis infection (p.value=0.0000).