An excellent article from the Board of Editors of Scientific America on the overall benefits to businesses that result from liberal sick day policies:

Pushing employees with the flu or a stomach bug to drag themselves into the office means more absences, not fewer. Workers who are not able to take paid time off to see a doctor are more likely to take six or more sick days a year than are those who can take time off, according to a 2005 Commonwealth Fund report. Overall, workers who are ill while on the job account for anywhere between 18 to 60 percent of workforce productivity losses, according to a 2004 review of estimates in the Journal of Occupational and Environmental Medicine. cdc data also show that employees without sick leave are more likely to get injured on the job and are less likely to get preventive health screening for cancer.

Experience suggests that paid sick leave does not hurt the bottom line. Sixteen U.S. cities and the states of Connecticut, Massachusetts and California have passed regulations that typically allow workers to earn one hour of paid sick leave for every 30 hours on the job. A 2013 audit by the city of Washington, D.C., found no evidence that its five-year-old paid sick leave law had prompted businesses to leave the area or discouraged new companies from coming in. On the West coast, San Francisco continued to outperform nearby Bay Area cities in job growth after it implemented a paid sick leave law in 2007. There are expenses: employers have to bear a small increase in base pay for employees who use leave, for instance. But productivity and public health benefits outweigh these costs. ( link)

Of special potential concern to those opposing liberal sick leave policies should the implications of the absence of such polices with respect to their restaurant dining experience:

Data published in 2013 by the U.S. Centers for Disease Control and Prevention indicate that one in five restaurant workers clocked in even when they were suffering from diarrhea and vomiting, the two main symptoms of norovirus. That formidable group of nausea-inducing viruses causes about half of all foodborne illnesses in the U.S. Bringing those harmful microbes into the workplace puts customers at risk. ( link)

Opponents of liberal sick day policies should remember . . . you are what you eat.

Although,  New York City recently passed a progressive sick day law, New York State has yet to do so.