This is just sick.

Amid the coronavirus outbreak, which has so far killed over 1,100 people and infected about 45,000, some people in China have been caught on video bizarrely and disgustingly wiping their spit on elevator buttons.

In one viral video shot in the city of Datong on Friday, an old man can be seen standing at the entrance to an elevator, spitting into his hand and then rubbing it onto the buttons.

A resident reported to the building management that the buttons appeared to be soiled. When officials tracked down the man, they checked his temperature, which turned out to be normal.

The sicko apologized and said he was just joking, according to Newsflare.

Since the coronavirus emerged in Wuhan, many elevators have been equipped with boxes of disposable tissues to allow passengers to avoid touching the buttons.

Another video making the rounds shows a man in Nanning spitting into a tissue and then rubbing it repeatedly on an elevator’s buttons.

Local police arrested the man, who apparently did not have any coronavirus symptoms, and detained him for 10 days.

And on Sunday, a woman was arrested after she was seen on video taking a tissue to press an elevator’s button in the city of Chongqing — then putting it back into the box before spitting on the buttons repeatedly.

Police said the woman, named Li, had a dispute with some people and spat in the elevator to vent her anger, according to Newsflare. Her temperature was normal.

In another case, a woman in the epicenter city of Wuhan was caught on surveillance video sneaking out late at night during the quarantine and spitting on a doorknob in her apartment complex, according to the Taiwan News.

A person who discovered the footage reported it to security guards. Moments later, police officers clad in hazmat suits arrived and sanitized public areas in the building.

Authorities said the case is under investigation, adding that more than 30 of the building’s residents have tested positive for coronavirus and that more than 90 have fevers, the news outlet reported.

It was unclear if the woman — whom many people described as “a demon walking on Earth” and “a sociopath trying to take revenge on her own country” — also was infected by the virus.