Sharing his regret on Facebook, Thomas Macias was focused on his loved ones.

“Because of my stupidity I put my mom and sisters and my family’s health in jeopardy,” the California truck driver wrote in a post his family shared with The Washington Post. He’d gone out to a party where no one wore masks, his niece Danielle Lopez said, only to learn afterward that someone knowingly attended with the novel coronavirus, apparently reasoning — erroneously — that without symptoms, it couldn’t do anyone harm.