Witch doctors beware: Facebook will no longer allow advertisements guaranteeing a cure for the mysterious SARS-CoV-2 coronavirus.

The social media giant announced on Wednesday that it would work to block any advertisement promising to treat the coronavirus as the SARs-like disease continues to spread. The coronavirus, which causes the disease known as COVID-19, has already infected more than 81,000 people on six continents, and officials in the United States have been warning the public to plan for a potential outbreak.