Virginia Monthly Morbidity Surveillance Report

This report is undergoing revisions and certain conditions, including chlamydia, gonorrhea, early syphilis, and tuberculosis, are not currently presented. To access data on these and other reportable conditions, please visit the Communicable Disease Data Page.

The Division of Surveillance and Investigation compiles monthly morbidity reports for most reportable conditions in Virginia. Data are updated on the 15th of each month for the previous months. Laboratories, medical providers, and local health departments report data on persons with a reportable disease. These data are entered into the Virginia Electronic Disease Surveillance System (VEDSS) or Enhanced HIV/AIDS Reporting System (eHARS) and sent to the Centers for Disease Control and Prevention (CDC) if nationally reportable. Surveillance data enable public health agencies to act quickly to prevent the spread of disease, identify and respond to outbreaks, and provide an overall snapshot of disease trends at the local, state, and national levels.

This monthly report summarizes the burden and trends for select reportable diseases reported by local health jurisdictions to VDH. It includes the current number of cases compared to the 5-year average by reportable condition by selected health district or the state.

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Please keep the following notes in mind when reviewing these data: 

  • Data in these reports are preliminary, as additional morbidity reassignments, de-duplication, and other data cleaning procedures may occur after report generation. These data are solely intended to provide a snapshot of current activity in Virginia. Although changes may be minimal, please contact the Division of Surveillance and Investigation for official statistics.  
  • Reporting of diseases contained in this report is required by state law (Sections 32.1-36 and 32.1-37 of the Code of Virginia and 12 VAC 5-90-80 and 12 VAC 5-90-90 of the Board of Health Regulations for Disease Reporting and control. 
  • Data are based on morbidity assigned to specific health regions and health districts, regardless of where the field investigation may have occurred. Epidemiologic follow-up is not always performed by health department staff in the locality where morbidity is assigned. 
  • Past year’s data is counted using the year of report to CDC or MMWR year. Current year data are considered preliminary and are counted using the month and year of the event date, which represents the earliest known date among illness onset date, diagnosis date, specimen collection date, date reported to local public health, or the date the investigation was initiated. 
  • Data include only those investigations for which notifications have been submitted and approved by VDH Central Office staff as meeting CDC/CSTE case definition criteria. 
  • A surveillance case definition is a set of uniform criteria used to define a disease for public health surveillance. Surveillance case definitions enable public health officials to classify and count cases consistently across reporting jurisdictions. Every year, some case definitions are updated, which could impact case counts from year to year. This should be considered when interpreting trends over time. 
  • Current year’s data is suppressed for confidentiality if the number of cases is 1-4. This will be shown as an asterisk (*). 

 Comments and questions can be directed to 

For additional surveillance data, please visit the Communicable Disease Data Page.