Reporting Varicella or Zoster Disease
On this page:
What to report
How to report
Who is required to report
Submitting clinical materials
Other reporting
More about varicella or zoster disease
- Varicella (chickenpox): all cases must be reported to MDH within one working day, including:
- clinically diagnosed cases
- probable cases based on symptoms reported by the patient or parent/guardian
- laboratory-confirmed cases
- Zoster (shingles) must be reported to MDH within one working day in the following instances:
- any incidence in individuals <18 years old
- disseminated disease or complications other than post-herpetic neuralgia, such as visceral, CNS, or severe ocular involvement, irrespective of age
How to report varicella or zoster disease
- Yellow Disease Report Card
This disease may be reported using the MDH "Yellow Card (previously known as the "blue card")."
- Phone
Any reportable infectious disease may be reported by phone to 651-201-5414 or 877-676-5414.
For varicella-zoster disease, submission of clinical materials (isolate, if available) to MDH is required by rule.
- Clinical Materials
Clinical materials must be submitted according to these guidelines.
- Reporting Form for Chickenpox and Shingles Cases in Schools
School data will help MDH determine trends, duration, and transmission patterns, and any association between cases and immunization or disease history. Schools are to report all cases of chickenpox in students and staff and all cases of shingles in students.
- Varicella (Chickenpox) and Zoster (Shingles) Information for Child Care Providers
Information, including how to report, specific to child care providers in centers and homes.
More about varicella-zoster disease
- Varicella (Chickenpox)
MDH comprehensive varicella resource page.

