Presence of Toxoplasma gondii in the urine of mice experimentally infected

Abstract

Toxoplasma gondii tachizoites from an avirulent strain, were used to subcutaneously infect mice (Swiss outbred strain). All died 7 to 9 days after infection (DAI) during acute phase infection. Eighty per cent eliminated T. gondii forms by urine. This was determined through infectivity test in normal mice (bioprove). Interstitial intertubular hemorrhage were the more frequently observed lesion in renal histology. Whole erythrocytes could also be seen in some glomerular Bowmann's sub-capsular space. T. gondii elimination mechanism is discussed, together with the relationship between these observations and natural toxoplasmosis transmission.