Transplacentally transferred maternal-infant antibodies to dengue virus.

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Abstract

Antibodies of all four dengue virus serotypes were detected by hemagglutination inhibition (HI) in 97% of 2,000 infants' cord sera at the time of delivery. In comparison with 250 mother-infant's paired sera, we found that 53% of the infants' serum HI titers were higher than those of the mother's. The mother/infant IgG subclasses 1, 2, 3, and 4 titers were 53.1/87.0, 8.4/11.7, 0.14/0.11, and 1.1/1.0 mg/dL, respectively. In 18 months of follow-up of 100 infants studied, we observed that antibody to dengue virus disappeared in 3% by two months of age, in 19% by four months of age, in 72% by six months of age, in 99% by nine months of age, and in 100% by 12 months of age, with a half-life of 41 days. We conclude that the antibodies to dengue virus disappeared in the first year of life. We suggest that the most appropriate age for vaccination with a live-attenuated dengue vaccine in an endemic area is one year of age.

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APA

Watanaveeradej, V., Endy, T. P., Samakoses, R., Kerdpanich, A., Simasathien, S., Polprasert, N., … Nisalak, A. (2003). Transplacentally transferred maternal-infant antibodies to dengue virus. The American Journal of Tropical Medicine and Hygiene, 69(2), 123–128. https://doi.org/10.4269/ajtmh.2003.69.123

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