Rush Limbaugh is fueling a coronavirus conspiracy theory about Rod Rosenstein's sister

Dr. Nancy Messonnier, the award-winning Directer of the Center for the National Center for Immunization and Respiratory Diseases, has worked in the public health sector since 1995. But, for some people apparently, her accomplishments and experience pale in comparison to the fact she's the sister of former Deputy Attorney General Rod Rosenstein.

Messonnier reportedly angered President Trump on Tuesday when she said it's not a question of if, but when and how fiercely, the coronavirus will hit the United States. "She never should have said that," a senior administration official told CNBC. "It's bad."

But some of President Trump's supporters, like conservative radio host Rush Limbaugh, have taken things a step further. Limbaugh, who has said the coronavirus is nothing more than the common cold and a scare tactic meant to send the stock market into a frenzy and weaken Trump in the process, doubled down on his conspiracy theory Wednesday by tying Messonnier to her brother, who is, to put it gently, not viewed favorably by Trump and his allies thanks to his role overseeing former Special Counsel Robert Mueller's investigation into 2016 Russian election interference.

Limbaugh baselessly suggested Messonnier was part of the deep state perpetuating the lie about the coronavirus to bring down Trump.

Perhaps not shockingly, others have followed suit.