The new video is the latest addition to an ongoing Los Angeles public education campaign—BetterTogether—to promote safe behaviors that can slow the spread of the coronavirus, which has claimed the lives of more than 300,000 in the U.S., including more than 20,000 in Los Angeles County.

In May, the health systems launched the public education effort by calling attention to growing concerns about members of the public putting off important medical care during the pandemic, potentially creating a secondary healthcare crisis with serious and avoidable health consequences.

Last month, leaders of the effort joined 100 of the nation's top health systems in issuing an urgent plea for all Americans to "mask up", building on scientific evidence that wearing masks can prevent the spread of the virus.

In this latest video message, physicians and nurses from the five health systems renew that critical appeal as millions of Americans prepare to travel and celebrate the holidays.

"One of the messages that I would like to get out to the community during the holiday season is to be mindful, to be respectful, to make sacrifices…that we wouldn't normally make during the holiday season," said Marisa Goldberg, RN, a nurse at Cedars-Sinai.

Angelique Campen, MD, of Providence, added: "Wear a mask, keep your hands clean, avoid large gatherings, social distance."

Medell Briggs-Malonson, MD, of UCLA Health, made a final, critical request.

"Please do us a favor," she says in the video. "Take care of yourself, take care of each other, so that you can help to take care of us and save lives."