In California, unvaccinated people are more than six times as likely to contract the coronavirus than those who have their shots, according to state data released on Monday.

And in Los Angeles County, the state’s most populous, an unvaccinated person is as much as 25 times more likely to be hospitalized with the disease.

“That, in a sense, is our proof that vaccines work,” said Dr. Robert Kim-Farley, an infectious-disease expert at the University of California, Los Angeles’s Fielding School of Public Health…

Of the 20 California counties with the highest proportion of residents currently hospitalized with the coronavirus, 19 have a vaccination rate below the statewide average of 55 percent, according to The New York Times’s coronavirus tracker. (The percentages include children under 12 who are not yet eligible for the vaccines.)