HARTFORD HEALTHCARE

A possible COVID-19 superspreader on the loose isn’t even human. It’s heating, ventilation, and air-conditioning systems in corporate offices, retail stores, and schools across the country.

Hartford Healthcare reports that Air-conditioning systems might be spreading airborne infections in Florida and elsewhere when people gather indoors to escape the summer heat. The cooling systems circulate little outdoor air, considered critical in dispersing viral particles in the air. Indoors, people are also less likely to practice social distancing…