Larry Farber couldn’t walk a mile last month without stopping three times to catch his breath, the aftereffect of a COVID-19 illness so severe that the 64-year-old was hospitalized twice and received powerful steroids and oxygen support to breathe.

Larry Farber couldn’t walk a mile last month without stopping three times to catch his breath, the aftereffect of a COVID-19 illness so severe that the 64-year-old was hospitalized twice and received powerful steroids and oxygen support to breathe.