VoICE : Search Immunization Evidence
The VoICE tool is a compendium of the many direct and downstream impacts of vaccine-preventable disease and immunization. The database contains summary explanations of the link between immunization and each impact, as well as sources of evidence for each link. You can browse the VoICE tool by topic, or use the filters to find results based on topic, disease or vaccine, location and published year.
A strong national immunization program can be leveraged during critical health emergencies to aid in outbreak response.
Key Evidence: The detection of H1N1 influenza virus in Mexico in 2009, and subsequently throughout other countries in the Americas, benefited from the laboratory experience with measles and rubella in the region, leading to the rapid detection of and response to what eventually became a novel pandemic virus.
Migrants and those displaced by conflict have lower vaccination rates and are especially vulnerable to vaccine-preventable diseases.
Key Evidence: Antibody screening of asylum seekers arriving in Germany found that few subgroups, such as people from the same country, were sufficiently protected against measles, rubella, and varicella, and that the majority of adolescents and adults would benefit from immunizations. The serology screening results were used to target specific high-risk groups (for example, people from certain countries and age groups) for vaccination as a cost-savings measure, which proved successful in managing varicella outbreaks at refugee reception centers.
Vaccine-preventable diseases during pregnancy can have devastating consequences for the mother and her baby.
Key Evidence: Mothers infected with rubella virus during the first trimester of pregnancy can give birth to children with permanent disabilities such as intellectual impairment, autism, blindness, deafness, and cardiac defects. The infection is completely preventable if mothers are vaccinated before pregnancy.
Leveraging infrastructure, personnel and expertise gained through prior polio eradication efforts allows countries to quickly track and control other infectious diseases.
Key Evidence: In the Americas, a platform built to secure polio eradication has been expanded to help track, control, prevent, and monitor immunization impact for measles and rubella. In India, highly trained polio health workers have become the basis for a trained workforce working towards the elimination of measles and rubella and helping ensure India’s certification by WHO for having eliminated maternal and neonatal tetanus.
Introduction of vaccines or strengthening of immunization programs can provide opportunities for increased collaboration between agencies with potential for long-term benefits.
Key Evidence: The American Academy of Pediatrics and the International Pediatric Association were included as partners in the measles and rubella elimination initiative, allowing for more direct collaboration around the interactions of primary health and immunization services and concerns.
Key Evidence: The detection of H1N1 influenza virus in Mexico in 2009, and subsequently throughout other countries in the Americas, benefited from the laboratory experience with measles and rubella in the region, leading to the rapid detection of, and response to, what eventually became a novel pandemic virus.