Key points are not available for this paper at this time.
Aircraft rescue and firefighting (ARFF) personnel are first responders located at airports in the United States who provide emergency response, mitigation, evacuation, and rescue of passengers and crew of aircraft at airports. The nature of their work puts ARFF personnel in close contact with travelers on a regular basis and at elevated risk for COVID-19 exposure.
Lê et al. (Tue,) studied this question.