The Centers for Disease Control and Prevention’s (CDC) own scientists conducted studies showing N95 respirators are no more effective at stopping viruses than surgical masks — yet the agency issued guidance contradicting those and other studies showing both types of masks are ineffective at stopping the spread of COVID-19.

However, Thacker said CDC scientists found no difference between N95 and surgical masks in the ability to stop the spread of respiratory viruses. The findings of the CDC studies are consistent with other peer-reviewed studies on the efficacy of masks in preventing COVID-19, according to Thacker.

“But the CDC responded by saying people can’t say that,” Thacker told The Defender.

According to Thacker, the CDC is not pleased with these findings, suggesting in its recent update that its own scientists were wrong.