Immigrants play big role in elder, disabled care in U.S. Experts warn about immigration limits. - NBC News

"This industry needs people round the clock. Immigrants disproportionately take the night shifts," said Dr. Zallman. "They are really filling the gaps."
https://www.nbcnews.com/news/latino/immigrants-play-big-role-elder-disabled-care-u-s-experts-n1014046