“Similar to other COVID variants, BA.2 spreads more easily in crowded, indoor locations with limited ventilation,” said Bernadette Boden-Albala, director and founding dean of the Program in Public Health at the University of California, Irvine. … Andrew Noymer, an [associate professor of public health], epidemiologist and demographer who studies infectious diseases at University of California, Irvine, said the main takeaway is that COVID-19 spreads indoors. “Anywhere you’re indoors, that’s where it’s spreading — anywhere and everywhere,” Noymer said.
The common places BA.2 and other omicron subvariants are spreading
HuffPost, May 9, 2022
May 9, 2022