Seasonal variation in congenital toxoplasmosis.

Seasonal variation in congenital toxoplasmosis.

Congenital toxoplasmosis.

Congenital toxoplasmosis results from the transplacental transmission of the parasite Toxoplasma gondii after a maternal infection acquired in pregnancy. Prevalence of congenital infection ranges from 0.1 to 0.3 per 1000 live births. The maternal-fetal transmission rate increases with gestational age at maternal seroconversion, from less than 15% at 13 weeks of gestation to over 70% at 36 weeks...

Congenital toxoplasmosis.

The history of toxoplasmosis began in 1923 with the F first published description of a human case, a congenitally infected baby. Toxoplasma gondii had been recognised 15 years earlier, but it was not until 1%96 that the life cycle of this protozoan parasite was understood, with the discovery that the definitive host : was any member of the cat family (fig 1).' 2 _ Despite extensive clinical and...

[Congenital toxoplasmosis].

Since congenital toxoplasmosis was first recognized as a human infection 18 years ago, it has been found in many parts of the world, and, following the first report by Jacoby and Sagorin in 1948, over 50 cases have been recorded in the British literature. Only four of the reports from this country concern the findings in fatal cases (Cathie and Dudgeon, 1949; Valentine, 1952; Valentine, Lane, B...

Seasonal variation in the incidence of congenital talipes equinovarus.

A review of 77 neonates who presented with congenital talipes equinovarus over a seven-year period revealed an increase in the condition amongst babies born in the winter quarter. This finding was particularly apparent among the less severe cases of club-foot. Possible reasons for this seasonal variation are discussed.