New York Gov. Andrew Cuomo said Monday he is asking private businesses such as bars and restaurants to require proof of vaccination against Covid-19 as a condition for admission.

The number of daily Covid cases in New York has increased “four-fold” to more than 2,000 cases over the past month as the highly contagious delta variant spreads, Cuomo said during a news conference. Data shows fully vaccinated individuals are less likely to catch, get infected with the virus or suffer from severe disease, he said.