Incidence of Toxoplasmosis gondii in Najran region, KSA.

Toxoplasmosis is an endemic disease all over the world. In surveying 210 individuals randomly selected from Najran area for anti-Toxoplasma IgG and IgM using ELISA, IgG was detected in 67 cases (31.9%) of the examined sera. The examined group includes (117) male, (75) female and (18) children. Four children (22.2%), 33 females (44%) and 30 males (25.6%) were found positive for IgG with statistically significant sex difference (P< 0.01). All serum samples were found negative for IgM except in one male child (0.48%) who indicates a recent infection. The samples were collected from 3 different localities: the capital city of Narran, and Sharourah and Habona Provinces. The highest anti-Toxoplasma IgG percentage positivity was reported among Sharourah inhabitants (47%) and the least was reported in the city of Najran (19.3%). Moreover, a statistically significant direct increase in the percentage positivity of anti-IgG levels was found with increasing age. The high rate of infected females has to be considered and further expanded study has to be carried out.