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[Seroprevalence of rubella in Kinshasa (Zaire)]
U Omanga1, B Goussard, K Kapepela
1Faculté de Kinshasa, Zaïre.
Insights
A rubella serosurvey found many women of childbearing age are susceptible. Vaccination is recommended for one-year-olds and pre-pubertal girls to prevent rubella infection.
Area of Science:
- Immunology
- Virology
- Public Health
Context:
- Rubella poses a significant risk to pregnant women and their unborn children.
- Understanding population immunity is crucial for effective disease control strategies.
Purpose:
- To assess the seroprevalence of rubella antibodies in different age groups.
- To identify susceptible populations for targeted vaccination efforts.
Summary:
- A serosurvey utilized hemagglutination inhibition and IgM assays.
- Prevalence varied: 91% in newborns, 32.7% in 9-18 month olds, 58% in 2-4 year olds, and 68% in 9-11 year old girls.
- Mothers showed 93% protective antibody presence, but significant susceptibility was noted in women of childbearing age.
Impact:
- Identifies a critical need for rubella vaccination programs.
- Highlights the importance of vaccinating both sexes at one year and girls before puberty.
- Aims to reduce the incidence of congenital rubella syndrome.
Abstract:
A serosurvey of rubella was carried out by haemagglutination inhibition and IgM assay among 106 newborn infants (91% positive); 101 suckling infants aged 9-18 months (32.7% positive); 100 children aged 2-4 (58% positive); and 100 young girls 9-11 (68% positive), while 93% of mothers showed the presence of protective antibodies. These figures indicated that large numbers of women old enough to bear children are susceptible to infection with rubella, at least early in life. A vaccination programme is therefore recommended for one year-old children of both sexes and again for young girls prior to puberty.
