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TRANSMISSION OF ACUTE TOXOPLASMA INFECTION The survival of trophozoites in human tears, saliva, and urine and in cow's milk
Author(s) -
SAARI MATTI,
RÄISÄNEN SIMO
Publication year - 1974
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.1974.tb01121.x
Subject(s) - tears , saliva , urine , toxoplasmosis , inoculation , pasteurization , biology , transmission (telecommunications) , transplacental , medicine , virology , physiology , immunology , microbiology and biotechnology , pregnancy , fetus , food science , electrical engineering , engineering , genetics , placenta
To explain the transmission of toxoplasmosis, it has been suggested that the trophozoites might not survive outside the body, but that cysts, oocysts and transplacental infection transmit the disease. In order to evaluate the possibility that the proliferative form transmits the disease, trophozoites were preserved in human tears, saliva, and urine and in pasteurized cow's milk at 4°C and for isolation inoculated daily into healthy, toxoplasma‐free mice i.p. It was observed that trophozoites remained infectious in excretions for several days, in tears for 4 days, in saliva for 5 days, in urine for 7 days and in milk for 6 days. Results suggest that trophozoites can survive in excretions outside the body long enough to transmit the disease.