Major Outbreak Settings
A major outbreak setting is considered 20 or more COVID-19 cases in an exposed workplace within a 30-day period. Any confirmed COVID-19 case who has been in the workplace during the high-risk exposure period counts towards the three-case threshold.
Outbreaks are serious situations that need immediate response.
In addition to the requirements for non-outbreak settings, the CPP should address the following employer actions:
- Provide testing to all employees in the exposed workplace at least twice weekly and exclude positive cases and exposures until there are no new cases detected for a 14-day period;
- Implement ventilation changes to mechanical ventilation systems, including increasing filtration efficiency to at least MERV-13, or the highest efficiency compatible with the ventilation system.
- Evaluate whether HEPA air filtration units are needed in poorly ventilated areas;
- Determine the need for a respiratory protection program or changes to an existing respiratory protection program to address COVID-19 hazards; and
- Consider halting all or part of operations to control the virus.
Knowledge Check Choose the best answer for the question.
3-6. A major outbreak setting is considered _____ within a 30-day period.
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