COVID-19 Workplace Exposures

Employer Resources for Prevention, Preparedness, Workplace Exposures, and Outbreak Management

Institute Prevention Practices

Prepare for Exposures and Outbreaks

Identify and Manage Workplace Exposures and Outbreaks

If you have questions after reviewing these materials, contact Nevada County Public Health at (530) 265-1450 and ask for COVID Workplace Exposure Support.

COVID-19 Workplace Exposure Employer Toolkit

The County of Nevada County Public Health Division recognizes that our community, including employers, plays an important role in protecting public health. We are providing this toolkit to employers to help contain and mitigate any cases of COVID-19 within your workforce. These tools provide guidance on notifying employees of an exposure and help identify workplace exposures. The County greatly appreciated the cooperation of local businesses in mitigating the spread of COVID-19 in the community.

This guidance is not intended for use in managing or preventing outbreaks in healthcare, congregate living settings, or other workplaces where the California Aerosol Transmissible Diseases (ATD) standard applies.

First: Isolate positive individual and sanitize

Provide instructions to the worker who is positive for COVID-19. 

The worker should be sent home immediately and instructed to isolate. Share the isolation guidance with any lab-confirmed positive employee(s).

Then: Follow the steps laid out by the California Dept of Public Health's Responding to COVID-19 in the Workplace for Employers guidance


Additional Resources

Detailed Industry Guidance

Quarantine vs IsolationSample Employee Notification Letter
English  Spanish
California's Employer Playbook for a Safe ReopeningAdditional CDC GuidanceEmployer Questions about AB 685


Isolation Guidance

"Isolation" is what people with a lab-confirmed case of COVID-19 are required to do.

Quarantine Guidance

"Quarantine" is what close contacts of a lab-confirmed positive are required to do.

  • Close Contact is defined by CDC as someone who was within 6 feet of an infected person for a cumulative total of 15 minutes or more over a 24-hour period starting from 2 days before illness onset (or, for asymptomatic patients, 2 days prior to test specimen collection) until the time the patient is isolated.  
  • "Quarantine" is what someone who has an exposure to a lab-confirmed COVID-19 positive person is required to do. All Close Contacts (as defined above) should be instructed to quarantine at home for 14 days from their last known contact with the employee with COVID-19. Close contacts should be tested for COVID-19 when possible. Due to the high rates of positives in our community, Public Health will not be able to contact all Close Contacts. Employers must provide the quarantine guidance to all Close Contacts in the workplace, including visitors, subcontractors, employees, clients, etc. All Close Contacts must abide by the quarantine guidance below. 


Important Final Step: 

Do not allow employees to come to work or remain at work if they have any COVID-like symptoms. We continue to see significant transmission and workplace outbreaks as a result of employees coming to work with mild symptoms.  

If you have additional questions related to workplace exposures after reviewing these materials, contact Nevada County Public Health at (530) 265-1717 and leave a message for the Business Exposure Support Team.

Include in the message your business name, city, point of contact and contact phone number, and a brief situational update (ex. 3 employees out with fever and cough, one employee reporting a positive COVID-19 lab test).

We will do our best to get back to you within one business day.