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As the authors noted, there is precedent for increased vaccine-associated mortality in females: after introduction of the high-dose measles vaccine, a doubling of all-cause mortality among girls but not boys led to eventual withdrawal of the vaccine from the market [ 5 ]. Cord blood samples were collected from infants born to mothers enrolled in a clinical trial of prenatal malaria chemoprevention conducted in Tororo, Uganda, an area of high malaria endemicity. Add comment Close comment form modal. Prenatal diagnosis of birth defects and termination of pregnancy in Hunan Province, China. To our knowledge, no prior studies have reported a difference in frequencies of T regs in the cord blood of male and female infants, either in uncomplicated healthy pregnancy or after in utero exposure to a pathogen. Cell frequencies were compared between sexes using Wilcoxon rank-sum testing. All authors: No reported conflicts.

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