NEW YORK/MEMPHIS: Matthew Davidson was beating his heroin addiction. The 31-year-old was attending group recovery meetings. He had a restaurant job he liked. He was a doting uncle to a baby nephew.

Then the coronavirus pandemic hit. Davidson lost his job. He started staying home alone in his apartment near Georgetown, Kentucky - depressed and yearning for his recovery support group that had stopped gathering in person, said his cousin Melanie Wyatt.