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An outbreak of infectious conjunctivitis spread by microscopes.
L Doyle1, K Gallagher, B S Heath
1Greater Boston Occupational Health Nurses Association, Massachusetts Department of Public Health, Jamaica Plain 02130.
Journal of Occupational Medicine. : Official Publication of the Industrial Medical Association
|September 1, 1989
Summary
Microscope use can spread infectious diseases like viral conjunctivitis in workplaces. Mandatory screening and plant shutdowns were effective in controlling a large factory outbreak.
Area of Science:
- Occupational health
- Epidemiology
- Infectious disease transmission
Background:
- Microscope use presents potential occupational hazards.
- Infectious agents can transmit among employees in shared workspaces.
- Viral conjunctivitis outbreaks pose significant risks in industrial settings.
Purpose of the Study:
- To report a large epidemic of viral conjunctivitis in a microelectronics factory.
- To identify the transmission route of the viral conjunctivitis outbreak.
- To evaluate control measures for infectious disease spread in the workplace.
Main Methods:
- Retrospective case analysis of 145 viral conjunctivitis cases.
- Investigation of microscope sharing as a transmission vector.
- Evaluation of interventions including handwashing, safety glasses, screening, and plant shutdown.
Main Results:
- A large epidemic of viral conjunctivitis (145 cases) occurred, costing over $647,000.
- Sharing of microscopes was identified as the primary mode of transmission.
- Standard precautions (handwashing, safety glasses) were insufficient.
- Mandatory pre-work screening and temporary plant closure successfully controlled the outbreak.
Conclusions:
- Microscope-associated transmission of viral conjunctivitis is a significant occupational hazard.
- Effective control requires stringent measures beyond standard hygiene protocols.
- Workplace policies should include screening and potential shutdowns to prevent widespread infectious outbreaks.