Poor eyesight contributed to a series of falls, as she said she’s fractured her back five times in the past four years. Once a week, she depends on a home care worker to drive her to the grocery store and help with shopping and other chores. But like thousands of needy Michigan seniors, she’s endured a revolving door of home health aides, including a couple who abruptly quit. “It’s devastating. I depend on that help,” said Klomparens, a mother of two who has lived alone for decades. Advocates for the elderly and those with disabilities say a long-time shortage of home health care workers has exploded into a crisis in Michigan amid the coronavirus pandemic, as aides are reluctant to risk their health for jobs that pay $12 to $15 an hour.