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  • Title: Tenth Technical Advisory Group (TAG) meeting on vaccine-preventable diseases.
    Journal: EPI Newsl; 1992 Apr; 14(2):2-6. PubMed ID: 12285738.
    Abstract:
    In march 1992, participants met in Rio de Janeiro, Brazil for the 10th Meeting of the PAHO Technical Advisory Group (TAG) on Vaccine-Preventable Diseases. Immunization coverage for all vaccines exceeded 75%. In 1991, only 9 confirmed cases of wild poliovirus occurred out of 4000 stool specimens examined. These cases were in Colombia and Peru. Many national immunization days and mop-up operations complement routine immunization services and have contributed greatly to interruption of the wild poliovirus in the Americas. Social mobilization efforts and mass media campaigns have increased coverage rates nationally and regionally. Surveillance efforts continue to improve. Almost 20,000 health units in Latin America report each week on the existence or nonexistence of acute flaccid paralysis cases. TAG continues to prefer the oral polio vaccine for the eradication program in the Americas. Participants discussed issues pertaining to certification of polio eradication. Measles incidence in the Americas is still falling and intervals between outbreaks are growing. Some countries in the English-speaking Caribbean using a month long, mass vaccination strategy have apparently interrupted measles transmission. Since measles causes more deaths than any other vaccine preventable disease, PAHO's TAG places it as the highest priority. The proportion of neonatal tetanus cases that are being investigated is growing (1991=8% and 1990=35%). Participants challenged Venezuela and Panama to vaccinate 100% of reproductive age women in high risk areas before the next meeting. Inadequate data on pertussis prevents PAHO from measuring any changes in pertussis epidemiology. Some countries have set up systems to monitor adverse events associated with vaccination. Participants agreed that member nations should begin hepatitis B vaccination programs for high risk groups.
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