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Subacute sclerosing panencephalitis (SSPE): a report of 16 cases
Abstract:
Sixteen cases of subacute sclerosing panencephalitis (SSPE) were diagnosed at the Royal Children's and Mater Misericordiae Children's Hospitals in Brisbane from September 1974 to June 1983. Although the incidence of the disease with regard to age at onset, previous exposure to measles virus, and longevity was similar to that reported in the United States and Europe, the frequency of the illness was substantially higher in the present study. The high frequency of the disease in Queensland appears to reflect a relatively low level of immunity to measles virus in the population at risk.
Insights
Subacute sclerosing panencephalitis (SSPE) occurred more frequently in Queensland than expected, despite similar disease characteristics. This suggests a lower population immunity to measles virus may be a contributing factor.
Area of Science:
- Neurology
- Pediatrics
- Infectious Diseases
Background:
- Subacute sclerosing panencephalitis (SSPE) is a rare, progressive neurological complication of measles virus infection.
- Previous studies have documented SSPE incidence and characteristics in the United States and Europe.
Purpose of the Study:
- To determine the frequency and characteristics of SSPE cases in Brisbane, Queensland.
- To compare Queensland's SSPE incidence with international data.
- To investigate potential factors contributing to observed disease frequency.
Main Methods:
- Retrospective analysis of 16 SSPE cases diagnosed between September 1974 and June 1983.
- Hospitals involved: Royal Children's and Mater Misericordiae Children's Hospitals, Brisbane.
- Comparison of SSPE characteristics (age at onset, measles exposure, longevity) with existing literature.
Main Results:
- Sixteen cases of SSPE were identified over a 9-year period.
- Disease incidence, age at onset, measles virus exposure, and survival rates were comparable to US and European cohorts.
- The overall frequency of SSPE in Queensland was substantially higher than previously reported internationally.
Conclusions:
- The elevated frequency of SSPE in Queensland suggests a potential issue with measles virus immunity levels in the at-risk population.
- Further investigation into measles vaccination coverage and population immunity is warranted.
- This finding highlights the importance of maintaining high measles immunity for preventing SSPE.