A mysterious man with a clipboard (or a yellow envelope) apparently made the bold decision to help an Ebola patient onto a plane without wearing a hazmat suit, and everyone is trying to identify him.

(Edit: We now know that "clipboard guy" is the medical protocol supervisor, who is not supposed to be wearing a hazmat suit. See this post for details.)

The hashtag #clipboardguy has gone viral on Twitter, with many people incredulous that someone would take such a risk in the midst of an Ebola outbreak that has caused widespread panic.

The man was reportedly helping Amber Vinson, a 29-year-old nurse who contracted Ebola in Dallas after caring for Thomas Eric Duncan, board a plane. She was being transferred from Texas Health Presbyterian Hospital to Emory University Hospital in Atlanta.

Here are the photos:

One of these things is not like the others... http://t.co/rjMbczGxAm #clipboardguy pic.twitter.com/UY1yyOM3Yz — FOX 4 NEWS (@FOX4) October 16, 2014

What a f'ing idiot #ClipboardGuy is either immortal or vaccinated because no one can be that dumb. #ebola http://t.co/jejiA7amKm @MailOnline — Veronica (@vevecurl) October 16, 2014

Based on the photos, it looks as if the man actually got onto the plane with Vinson.

The ambulance service responsible for transporting Vinson to Love Field, where the plane was waiting, told NBC News that the man is probably a member of the air crew.

Vinson is the second person to contract Ebola in the US. She and another nurse were found to have Ebola this week. They both cared for Duncan, who started showing Ebola symptoms after he flew from Liberia to the US for a visit. He died last week.

Here's a video of the man boarding the plane:

Ebola is not airborne and can be transmitted only via a contagious person's bodily fluids. Still, people who come into contact with Ebola patients are advised to wear proper protective gear.

Although the Ebola outbreak has ravaged parts of western Africa, where more than 4,000 people have died from the disease, risk of a similar outbreak in the US is very, very low.

Ebola often begins with flu-like symptoms and a fever and can progress to internal and external bleeding and organ failure.