Americans are showing up sick to work even as Omicron spreads

You may think that store and restaurant workers in America who catch Covid-19 are staying home to recover and keep the public safe.

But millions of frontline employees aren't able to do that without missing a paycheck. So, many Americans, working precarious, low-wage jobs in the service industry, can't stay home — even if they come down with the virus or are exposed to someone who's been infected.

Some workers are struggling to get or afford testing to confirm they have been infected. Many don't have paid sick leave and need to...