Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2003-8-12
pubmed:abstractText
In 1989, high-titer (HT) Edmonston-Zagreb measles vaccine with a titer more than 10(4.7) plaque-forming-units was recommended by the World Health Organization for use in areas with a high incidence of measles in children younger than 9 months. In 1992, the recommendation was rescinded following reports from Guinea-Bissau, Senegal, and Haiti showing an increased incidence of female mortality occurring after administration of HT Edmonston-Zagreb vaccination. We reviewed 9 studies of HT measles vaccines that reported data on mortality. These reports included 4 randomized trials comparing HT vaccine administered to children younger than 9 months with standard-titer (ST) vaccines (10(3.0) to 10(4.0) plaque-forming-units) given at 9 months of age. Five studies from Zaire, Haiti, Senegal, Rwanda, and Zaire had no control group receiving ST vaccine at 9 months of age, but investigators were able to examine the female-to-male mortality ratio within these HT studies. Investigators have hypothesized that HT vaccine had caused immune suppression similar to that of measles infection. The present review suggests first that the HT vaccine itself is unlikely to be the cause because the effect was not found in all studies. Second, the increased mortality started only after 9 to 10 months of age when controls received ST measles vaccine, and HT groups received the "control vaccine." It was not found in the studies that provided another measles vaccine instead of control vaccine. Third, because the HT studies with excess mortality rates showed increased female mortality rates, we need to find environmental or contextual conditions associated with increased female mortality rates in some studies to explain the problem associated with HT measles vaccination.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1045-1870
pubmed:author
pubmed:issnType
Print
pubmed:volume
14
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
220-32
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
High-titer measles vaccination before 9 months of age and increased female mortality: do we have an explanation?
pubmed:affiliation
Projecto do Saúde de Bandim, Danish Epidemiology Science Centre, Bissau, Guinea-Bissau.
pubmed:publicationType
Journal Article, Review, Research Support, Non-U.S. Gov't