Related Experiment Videos
[Mumps vaccines: vaccination failures from an immunological viewpoint]
1Bundesamt für Gesundheitswesen, Bern.
Abstract:
The significance of mucosal and systemic immunity is illustrated with the example of the different immune response of Poliovaccine live oral (Sabin) and Poliovaccine inactivated parenteral (Salk). On the occasion of rubella- and measles-outbreaks it will be demonstrated that in vaccinated people subclinical reinfections may much more frequently occur than clinically manifest diseases. On the basis of these findings one may consider the large number of parotitis cases without complications in mumps vaccinated Swiss pupils as secondary mucosal vaccine failures at a time, when systemic immunity still was protective. Significance for vaccination policy and consequences for handling of vaccines shall be briefly discussed.
Insights
Different vaccines, like oral Poliovirus (Sabin) and inactivated Poliovirus (Salk), highlight mucosal and systemic immunity. Vaccinated individuals may experience subclinical infections, indicating potential vaccine failures even with protective systemic immunity.
Area of Science:
- Immunology
- Vaccinology
Context:
- Comparing mucosal and systemic immunity using Poliovirus vaccines (Sabin and Salk).
- Observing subclinical reinfections in measles and rubella outbreaks among vaccinated populations.
Purpose:
- To illustrate the distinct roles of mucosal and systemic immunity in vaccine response.
- To analyze vaccine failures in the context of differing immune responses.
Summary:
- Subclinical reinfections are more common than clinical disease in vaccinated individuals, as seen in measles and rubella outbreaks.
- Mumps cases in vaccinated Swiss pupils suggest secondary mucosal vaccine failures despite intact systemic immunity.
Impact:
- Findings inform vaccination policy and vaccine handling strategies.
- Highlights the importance of considering mucosal immunity in vaccine efficacy.