The dye test for toxoplasmosis (Sabin and Feldman, 1948) depends upon the fact that toxoplasma organisms lose their affinity for methylene blue when they are exposed to specific antibody plus a heat-labile " accessory factor" at present available only from certain human sera. Accessory factor has been shown to differ from complement in several respects. Sera containing antibodies which produce ...

The dye test for toxoplasmosis (Sabin and Feldman, 1948) depends upon the fact that toxoplasma organisms lose their affinity for methylene blue when they are exposed to specific antibody plus a heat-labile " accessory factor" at present available only from certain human sera. Accessory factor has been shown to differ from complement in several respects. Sera containing antibodies which produce ...

The dye test for toxoplasmosis (Sabin and Feldman, 1948) depends upon the fact that toxoplasma organisms lose their affinity for methylene blue when they are exposed to specific antibody plus a heat-labile " accessory factor" at present available only from certain human sera. Accessory factor has been shown to differ from complement in several respects. Sera containing antibodies which produce ...

The dye test for toxoplasmosis (Sabin and Feldman, 1948) depends upon the fact that toxoplasma organisms lose their affinity for methylene blue when they are exposed to specific antibody plus a heat-labile " accessory factor" at present available only from certain human sera. Accessory factor has been shown to differ from complement in several respects. Sera containing antibodies which produce ...

Introduction: Toxoplasma gondii is one of the most important foodborne pathogens. Toxoplasmosis causes abortion and neonatal loss in livestock and imposes significant losses to farming industry. Prevalence of T. gondii in sheep and goats was investigated in three adjacent geographical areas within Gilan province in north of Iran. Methods: Serum samples were collected from 247 sheep and 155 goat...

Tests commonly used for routine determination of anti-Toxoplasma gondii immunoglobulin G (IgG) antibodies show a high level of consistency. However, considerable variations between commercial screening tests are still observed in detecting antibodies present at low concentrations, leading to a number of discrepant and/or equivocal results. It is therefore important to use a reference test to co...

introduction: toxoplasma gondii is one of the most important foodborne pathogens. toxoplasmosis causes abortion and neonatal loss in livestock and imposes significant losses to farming industry. prevalence of t. gondii in sheep and goats was investigated in three adjacent geographical areas within gilan province in north of iran. methods: serum samples were collected from 247 sheep and 155 goat...

Ocular toxoplasmosis is considered to be the most commonly recognized cause of chorioretinitis in the United States. It is commonly believed that the majority of cases of acute toxoplasmic chorioretinitis involving adults in the United States are late sequelae of congenital infection and that the condition is rarely associated with acute postnatally acquired infection. We report here the clinic...