Epidemiology Program

Epidemiology is the core science of public health. It is the study of diseases or other health events that answers the questions:

• Who gets the disease?
• When or how often does it occur?
• Which geographic areas are most affected?
• Why is the disease occurring?

LFHD Epidemiologists and Communicable Disease Investigators serve our residents by: 

• Monitoring for the occurrence of reportable and emerging diseases or suspected outbreaks of illness;
• Providing recommendations and guidance to prevent the spread of communicable diseases;
• Investigating outbreaks of disease; and   
• Responding to public health emergencies.

Clarissa Bonnefond, MPH (she/her)
Lord Fairfax Health District Epidemiologist 
clarissa.bonnefond@vdh.virginia.gov
Office: (540) 722 - 3470

Stephanie Neal, MPH
Lord Fairfax Health District Junior Epidemiologist
stephanie.neal@vdh.virginia.gov
Office: (540) 459 - 3733