For the third time in three years, adult movie studios have largely shut down production as a precautionary measure after a performer was diagnosed with a potentially fatal sexually transmitted disease but didn’t immediately disclose it.

A male performer in the Los Angeles porn community was reportedly diagnosed with syphilis last month, but apparently hid the fact from producers, prompting fears of a spread among other actors and actresses. Several big studios have voluntarily suspended production for an unspecified period, while the Free Speech Coalition (a trade group that represents the adult entertainment industry) has called for a moratorium on filming until all performers have been re-tested for the disease.

Read more at CNBC.com