SANTA CLARA COUNTY – The Santa Clara County Public Health Department on Monday announced 24 new cases of COVID-19, bringing the total to 138, the highest in California.

At least 52 people have been hospitalized with the disease in the county and four have died – a man in his 50s, a woman in her 60s with chronic health conditions, a man in his 80s and a woman in her 80s.

Elsewhere in the Bay Area, Contra Costa County reported five new cases, bringing its total to 34. As of Monday, the number of cases in San Mateo and Alameda counties stood at 42 and 18, respectively.

Some 392 people in California had tested positive for COVID-19 as of 6 p.m. Sunday, according to the California Department of Public Health. At least six have died from the disease.

The number of cases is expected to keep climbing. To help slow the spread, public health departments around Bay have taken increasingly aggressive measures, including limiting gatherings and instructing residents to shelter in place for the next three weeks.

Check back for updates.