https://www.siliconvalley.com/2020/02/26/coronavirus-facebook-to-ban-ads-claiming-to-cure-disease/

As concerns about the coronavirus epidemic increase, and some patients suffering from the disease are being treated at hospitals in the Bay Area, Facebook is taking some new steps to prevent misinformation about the virus spreading across the social network.

Facebook said it will not accept advertisements for products or services that claim to either cure the disease, or can curtail the spread of the virus. The move comes as the disease has spread from China, and new pockets of coronavirus cases have been reported in South Korea, Iran and Italy. Federal health authorities have also said that American school districts, businesses and families should take steps to prepare for a possible coronanvirus outbreak in the United States.