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Typical, modified, and atypical measles
Abstract:
A small outbreak of measles that occurred in August and September of 1975 was studied. One adolescent boy who had received killed measles vaccine 12 years previously had atypical measles, a 31-year-old woman had typical primary measles, and two other boys with measles were live vaccine failures. Of these latter two cases, clinical and serologic findings suggest that one boy had primary vaccine failure and the other may have had a secondary immunologic response. The findings of this study, as well as the results of other recent investigations, suggest that measles will be of increasing concern for the internist.
Insights
Measles outbreaks can occur despite vaccination. This study examined cases of atypical measles, primary measles, and vaccine failures, highlighting the need for internists to remain vigilant.
Area of Science:
- Epidemiology
- Infectious Diseases
- Immunology
Background:
- Measles outbreaks pose a public health concern.
- Vaccine efficacy and waning immunity are critical factors in disease transmission.
Purpose of the Study:
- To investigate the characteristics of a measles outbreak in 1975.
- To analyze different measles presentations and vaccine failure mechanisms.
Main Methods:
- Case study analysis of a small measles outbreak.
- Clinical and serologic evaluation of affected individuals.
Main Results:
- One case of atypical measles in an individual previously vaccinated with killed measles vaccine.
- One case of typical primary measles.
- Two cases of live measles vaccine failure, one suggesting primary vaccine failure and the other a possible secondary immunologic response.
Conclusions:
- Measles remains a concern for internists, even with vaccination.
- Understanding vaccine failure is crucial for disease control and prevention strategies.