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Scrub typhus in Hong Kong
1Department of Medicine, British Military Hospital, Hong Kong.
The Journal of Tropical Medicine and Hygiene
|April 1, 1991
Summary
Scrub typhus is common in Hong Kong military personnel, especially during warmer months. Further studies are recommended to understand its prevalence in the civilian population, as current data is limited.
Area of Science:
- Infectious Diseases
- Epidemiology
- Tropical Medicine
Background:
- Scrub typhus, a zoonotic disease caused by Orientia tsutsugamushi, presents a diagnostic challenge in endemic regions.
- Limited data exists on scrub typhus incidence within Hong Kong's civilian population.
- Military personnel in Hong Kong have historically reported cases, suggesting potential underdiagnosis in civilians.
Purpose of the Study:
- To analyze scrub typhus cases in Hong Kong military personnel from 1979-1989.
- To investigate the discrepancy in reported cases between military and civilian populations.
- To highlight the need for further research into civilian scrub typhus prevalence.
Main Methods:
- Retrospective analysis of medical records.
- Review of notified cases from the Hong Kong Medical and Health Department.
- Comparison of case data between military and civilian populations.
Main Results:
- Fifty-nine cases of scrub typhus were identified in military personnel between 1979 and 1989.
- The majority of cases occurred during the hot, humid season (May-October).
- Significantly fewer civilian cases were reported, indicating a potential underestimation of disease burden.
Conclusions:
- Scrub typhus appears to be prevalent in Hong Kong's military population, with seasonal patterns.
- The low number of civilian notifications suggests underdiagnosis or underreporting.
- Prospective studies using serological diagnostics are crucial to assess scrub typhus as a cause of fever of undetermined origin in civilians.
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