Millions of white-collar workers are telecommuting from home to stay safe as the coronavirus extends its terrifying reach across America. But millions of other workers — supermarket cashiers, pharmacists, warehouse workers, bus drivers, meatpacking workers — still have to report to work each day, and many are furious that their employers are not doing enough to protect them against the pandemic.

Some companies are not providing their workers with gloves or hand sanitizer, and some are even prohibiting employees from wearing masks for fear of frightening customers. Many workers feel they’re putting their lives on the line each day by interacting with customers who might be infected and by working in places they’re convinced have not been adequately sanitized against the virus.

Fearing retaliation, American workers are generally far more reluctant to stick their necks out and protest working conditions than are workers in other industrial countries. But with greater fear of the disease than of their bosses, workers have set off a burst of walkouts, sickouts and wildcat strikes.

With their employer’s business booming, workers at Instacart, the grocery delivery service, have called for a strike on Monday, demanding that the company provide hazard pay and more personal protective supplies. Workers at an Amazon warehouse on Staten Island threatened a walkout on Monday if the company did not close the building and thoroughly clean it after several workers tested positive.