A nurse who worked at St. Joseph’s Medical Center in Stockton died this week from complications of the novel coronavirus, or COVID-19.

The Lodi News-Sentinel first reported that Jeffrey Baumbach, 57, died from the disease Monday. His wife, Karen, a registered nurse case manager at Adventist Health Lodi Memorial, also tested positive for the coronavirus and has been in quarantine at her home for the past two weeks.

St. Joseph’s Medical Center is a Kaiser Permanente partner hospital. Corwin Harper, senior vice president and area manager for the medical care consortium’s Central Valley branch, told The Stockton Record via email Friday that they were in mourning over Baumbach’s death.

“We share the grief and extend our condolences to his family and friends on the loss of their loved one, who dedicated his professional life to helping patients and families manage their medical needs,” Harper said.

Baumbach’s job included placing incoming Kaiser patients in the appropriate care and treatment departments at St. Joseph’s, as well as training other nurses, the News-Sentinel reported. It’s unclear where Baumbach, a Lodi resident, contracted the disease.

On Wednesday night, dozens of motorists parked in front of Baumbach’s house on Elderica Way, rolled down their windows and turned on their cellphone lights to show support for his family, the News-Sentinel reported. The event was organized by Karen Baumbach’s mother, Sharleen Leal, and her daughter, Kaila Baumbach, to lift her spirits as she recovers from the disease and copes with her husband’s death.

As of Friday afternoon, there have been 185 confirmed case of COVID-19 and 11 deaths from the virus in San Joaquin County since the county’s first case was confirmed March 10. The number of new cases has increased by 10 per day since March 20.

New data released by county public health officials Friday morning shows that the majority of people who’ve tested positive for the novel coronavirus in San Joaquin County are between the ages of 18 and 49, making up about 41% of all confirmed cases.

The most at-risk age group for developing severe illness due to the disease, those 65 years or older, made up just 21% of confirmed cases. About 38% of cases have occurred in those aged 50 to 64, while no children under the age of 18 have reportedly contracted the disease.

County data also shows that women made up about 59% of coronavirus cases, with just 41% being men.

Lodi has 18 reported cases of COVID-19, marking the fourth highest total of cases in San Joaquin County. Stockton has the most at 92.

Contact reporter Cassie Dickman at (209) 546-8299 or cdickman@recordnet.com. Follow her on Twitter @byCassieDickman.