http://www.sciencemag.org/news/2020/03/infectious-disease-experts-call-nationwide-closure-us-schools-and-business-slow

Top U.S. researchers are asking Trump administration officials to enforce a nationwide closure of schools and businesses.

Infectious disease experts across the United States are calling for tougher enforcement of social distancing measures to slow the spread of the coronavirus behind the COVID-19 pandemic, including a nationwide closure of schools and businesses. Such a move would go beyond the spotty closures now in place in some states and major cities.