Guidance for Businesses & Organizations

UPDATED October 4, 2021

Businesses are no longer required to report COVID-19 positive employees to the Health Department.

Health Department staff are available to assist with questions about COVID-19 cases or concerns. Please email [email protected] or call 734-544-6700.

Also see our COVID-19 Frequently Asked Questions for Businesses.

Although previous COVID-19 prevention strategies are no longer required for most settings, the Washtenaw County Health Department strongly encourages each facility to evaluate their operations, and to follow CDC and OSHA recommendations to prevent disease spread and protect worker and patron health and safety. (Note that healthcare settings do have OSHA and MIOSHA requirements related to COVID-19.)


Important Updates

  • Fully vaccinated individuals must still isolate for 10 days if they test positive for COVID-19.
  • Fully vaccinated individuals who are exposed to COVID-19 are recommended to get tested 3-5 days after their exposure. They should also wear a mask in indoor public settings for at least 14 days after their exposure, or until they receive a negative test result.
  • Everyone (including fully vaccinated individuals) is recommended to wear a mask in public indoor settings to help prevent spread of COVID-19, especially the Delta variant, and to protect others. See face mask recommendations from the Michigan Department of Health and Human Services (MDHHS).

Quarantine guidance for close contacts who have not been vaccinated for COVID-19

We recommend the general public quarantine for 14 days from their last contact with an infected person. This option is the safest for everyone. However, a growing body of data shows that the risk of illness is greatly reduced between days 11-14. Therefore, your quarantine can end after 10 days if:

  1. You do not develop symptoms within 10 days AND
  2. You continue to monitor your symptoms for 14 days.

To be clear, there is still a risk of developing an illness between days 11-14; it is simply lower than the first 10 days. Ending quarantine after 7 days and a negative COVID-19 test is not an option, except for very limited circumstances in schools. Please see our school guidance.

Updated quarantine guidance for close contacts who have been vaccinated for COVID-19

Vaccinated persons with an exposure to someone with suspected or confirmed COVID-19 are not required to quarantine if they meet ALL of the following criteria:

  • The individual is fully vaccinated, meaning it has been at least 14 days since receiving the final dose in the vaccine series (2 doses of Moderna; 2 doses of Pfizer; or 1 dose of Janssen/Johnson & Johnson), and
  • The individual has not developed ANY symptoms since their exposure.

The CDC recommends fully vaccinated people who are exposed to get tested 3-5 days after their exposure (PCR test recommended). They should also wear a mask in indoor public settings for at least 10 days after their exposure, or until they receive a negative test result.

Business Guidance & Resources

For local information, email [email protected] or call 734-544-6700. Please leave a message if your call is not directly answered.