Polio outbreak in Honduras. Clinical efficacy of trivalent oral polio vaccine tested

1985 and 1986, based on estimations of vaccination coverage with three or more doses of vaccine (by one-year age group) and data on disease cases in vaccinated chil- dren.. l

Brazil is producing measles vaccine, while Mexico has developed a production capa- bility for both measles and oral polio vaccines.. Cuba is developing a

If polio vaccine strains are able to interfere with the natural spread of enteroviruses up to 60 days after vaccination, and if enteroviruses have some

90% of the children had received three or more doses of oral polio vaccine, irre- spective of supplementary vaccinations provided on National Vaccination Days; a

By saying “we” I mean not only the staff of the Pan American Sanitary Bureau but everyone involved in the effort-from the collaborating agencies (Canadian

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