ABSTRACT
A key public health measure has received far too little attention over the course of the Covid-19 pandemic: paid sick leave policies that encourage people at risk of spreading disease to stay home rather than come to work. The United States is one of the only developed countries that fails to guarantee paid sick leave at the federal level, leaving a patchwork of state and private policies that undersupply time off when people are contagious and protect top wage earners at wildly disproportionate rates compared with what workers with lower incomes experience. Other countries have shown that sick leave mandates are neither unjustified burdens on employers nor gratuitous giveaways to employees. In fact, sick leave saves on health care costs by making employees less likely to infect coworkers, to be absent for longer themselves, or to need treatment in expensive hospital emergency departments. Nationally guaranteed sick leave is urgently needed to promote public health.