Improving waterborne disease outbreak investigations

Area of Science:

• Environmental Health
• Epidemiology
• Public Health

Background:

• State and local public health officials investigate suspected waterborne disease outbreaks.
• Infrequent investigations highlight the need for improved outbreak investigation protocols.
• Effective collaboration among diverse experts is essential for thorough investigations.

Purpose of the Study:

• To summarize discussions and recommendations from a workshop on waterborne disease outbreak investigation.
• To emphasize the importance of methodologically sound epidemiological studies.
• To improve the prevention and management of waterborne disease outbreaks.

Main Methods:

• Workshop summary of discussions and recommendations.
• Focus on epidemiological study design and bias identification.
• Emphasis on interdisciplinary collaboration (epidemiologists, scientists, engineers).

Main Results:

• Need for formal plans to ensure methodologically sound epidemiological studies.
• Importance of advance arrangement for laboratory support (water and clinical specimens).
• Enhanced surveillance can lead to timely outbreak recognition and investigation.

Conclusions:

• Improved outbreak investigations enhance knowledge of etiological agents, water system deficiencies, and contamination sources.
• Attention to study design, bias (especially recall bias), and collaboration is key.
• Effective prevention of waterborne outbreaks relies on robust investigation practices.