On April 8, Centers for Disease Control and Prevention (CDC) posted what it terms as “Interim Guidance for Critical Infrastructure Workers Who May Have Had Exposure to a Person with Suspected or Confirmed COVID-19”.
From the CDC page:
This interim guidance pertains to critical infrastructure workers, including personnel in 16 different sectors of work including:
Federal, state, & local law enforcement
911 call center employees
Fusion Center employees
Hazardous material responders from government and the private sector
Janitorial staff and other custodial staff
Workers – including contracted vendors – in food and agriculture, critical manufacturing, informational technology, transportation, energy and government facilities
The page gives practical advice such as not sharing headsets, increasing air exchanges in rooms, and social distancing, and states:
Critical Infrastructure workers who have had an exposure but remain asymptomatic should adhere to the following practices prior to and during their work shift:
Pre-Screen: Employers should measure the employee’s temperature and assess symptoms prior to them starting work. Ideally, temperature checks should happen before the individual enters the facility.
Regular Monitoring: As long as the employee doesn’t have a temperature or symptoms, they should self-monitor under the supervision of their employer’s occupational health program.
Wear a Mask: The employee should wear a face mask at all times while in the workplace for 14 days after last exposure. Employers can issue facemasks or can approve employees’ supplied cloth face coverings in the event of shortages.
Social Distance: The employee should maintain 6 feet and practice social distancing as work duties permit in the workplace.
Disinfect and Clean work spaces: Clean and disinfect all areas such as offices, bathrooms, common areas, shared electronic equipment routinely.