On a Friday afternoon in early October this year, 8-year-old Maricia Redondo came home from her third grade class in the San Francisco Bay Area with puffy eyes, a runny nose and a cough.

"On Saturday morning we both got tested," says Vanessa Quintero, Maricia's 31-year-old mother. "Our results came back Monday that we were both positive."

Vanessa stared at her phone in shock and called her doctor's test-result hotline again, in disbelief. "This is wrong," she thought. "I hung up and dialed again. It's positive. This is wrong. I hung up again. And then I did it again!"

She was freaking out for two reasons. First, her large, extended family had already fought a harrowing battle against COVID-19 last year — in the fall of 2020. The virus had traveled fast and furious through their working class neighborhood back then, in the East Bay city of San Pablo. Four generations of Vanessa's family live next door to each other in three different houses there, all connected by a backyard.

Vanessa was also terrified because she couldn't fathom another round of treatment against a more dangerous variant than she'd faced before. The pandemic has disproportionately struck Latino families across the United States, and delta is currently the predominant variant in the U.S., according to the U.S. Centers for Disease Control and Prevention. It's twice as contagious and may cause more severe illnesses than previous variants in unvaccinated people.

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