LA County regresses to 'medium' COVID level as cases spread

Los Angeles County's rising rate of COVID-19 caused the county to downgrade Thursday from the federal government's "low" virus level to "medium" -- prompting calls from county officials to mask up indoors, get vaccinated and boosted and get tested at the first sign of illness.

LA County health officials urge workplace safety as COVID-19 spread continues

Health officials have been reporting elevated daily case numbers in recent weeks, attributable largely to the BA.2 subvariant of the virus. An offshoot of that variant -- known as BA.2.12.1 -- has also begun spreading locally, and health officials said it is believed to be 20% to 30% more infectious than BA.2.