Since early May, reports of new infections have climbed at a steep clip, roughly doubling in San Bernardino County and tripling in Riverside County. Epidemiologist Andrew Noymer, an associate professor of [public] health at UC Irvine, said those reports likely are undercounting the magnitude of the wave because many families are relying on home tests. “Those, for all intents and purposes, are not being reported,” he said. What is more accurately and completely reported, Noymer said, is the number of people in the hospital with COVID-19. “Hospitalizations have been modest, thank goodness,” he said.