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Leptospirosis in Chonbuk Province of Korea in 1987
1Department of Internal Medicine, Chonbuk National University, Medical School, Chonju, Korea.
Abstract:
Leptospirosis is a zoonosis with protean clinical manifestations. Its diagnosis requires a high index of suspicion and is confirmed by isolation of the organism or, more commonly, by serologic tests. In the fall of 1987, after severe flooding, we saw 93 patients with leptospirosis, confirmed by a microagglutination test. Thirteen percent of the patients had no clinical or laboratory findings except fever and headache, but the rest had mild to severe manifestations. Jaundice, renal failure, and aseptic meningitis were not common, but pulmonary symptoms, when present, were striking. The mortality rate was 5%. The main cause of death was asphyxiation due to massive hemoptysis from pulmonary hemorrhage and acute respiratory failure.
Insights
Leptospirosis outbreaks can occur after floods, causing varied symptoms. Pulmonary complications, like hemorrhage and respiratory failure, were the primary cause of death in a 1987 outbreak.
Area of Science:
- Infectious Diseases
- Public Health
- Epidemiology
Background:
- Leptospirosis is a zoonotic disease with diverse clinical presentations.
- Diagnosis relies on clinical suspicion and laboratory confirmation, often serological tests.
- Flooding events can trigger outbreaks of leptospirosis.
Purpose of the Study:
- To describe the clinical manifestations and outcomes of leptospirosis in a post-flood outbreak.
- To identify risk factors and common presentations in affected patients.
Main Methods:
- Retrospective analysis of 93 patients diagnosed with leptospirosis.
- Confirmation of diagnosis using the microagglutination test.
- Clinical data collection on symptoms, severity, and mortality.
Main Results:
- 93 patients diagnosed with leptospirosis after severe flooding in 1987.
- 13% presented with only fever and headache; others had mild to severe symptoms.
- Pulmonary manifestations, including hemorrhage and respiratory failure, were prominent and associated with a 5% mortality rate.
Conclusions:
- Leptospirosis outbreaks following floods present with significant pulmonary complications.
- Massive hemoptysis and acute respiratory failure are critical causes of mortality.
- Prompt diagnosis and management are crucial for improving outcomes in leptospirosis outbreaks.