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Norwalk virus outbreak at a college campus
Southern Medical Journal
|January 1, 1986
Summary
Norwalk virus caused a nonbacterial gastroenteritis outbreak among college students, mimicking food poisoning. Lettuce consumption was linked to the illness, with vomiting and diarrhea being common symptoms.
Area of Science:
- Epidemiology
- Infectious Diseases
- Public Health
Background:
- Nonbacterial gastroenteritis outbreaks can resemble food poisoning.
- College campuses are susceptible to rapid disease transmission.
Purpose of the Study:
- To identify the cause of a gastroenteritis outbreak at a college campus.
- To investigate the association between food consumption and illness.
- To characterize the clinical presentation of the outbreak.
Main Methods:
- Case investigation and serologic testing for Norwalk virus.
- Analysis of food histories to identify potential sources.
- Clinical evaluation of affected students.
Main Results:
- A significant association was found between illness and lettuce consumption.
- Serologic evidence confirmed Norwalk virus infection.
- Leukocytosis and lymphopenia were observed in acutely ill students.
Conclusions:
- Norwalk virus was identified as the causative agent of the gastroenteritis outbreak.
- The outbreak mimicked common foodborne illnesses, highlighting diagnostic challenges.
- Early identification and control measures are crucial for managing such outbreaks.