A Cabinet-level cough on video set off a Twitter storm.

The tweets came fast and furious after HUD Secretary Ben Carson committed a coronavirus etiquette faux pas at a White House news conference.

The former neurosurgeon stepped up to the podium to make a few remarks. But he only gets a few words out — “Thank you, Mr. Vice President” — before he coughs into his hand, touches his face and then touches the podium.

Moments earlier, President Trump and Vice President Mike Pence had spoken into the same microphone.

The Twitterati weren’t kind to Carson.

“Even my 4 year old baby cousin knows better than to cough and sneeze into her hands instead of her elbow at least #bencarson,” @quesada_Kayla posted.

“The first thing Ben Carson does is cough into his hand. Nice,” wrote @mikereinholz777.

@TomDangora wrote: “Ben Carson just now showing us how NOT to cough!”