Three more Americans have reportedly died from vaping-related illnesses, bringing the death toll in a recent spate of e-smoking fatalities to 12.

The latest deaths were reported this week by health officials in Florida, Georgia and Mississippi, according to reports Thursday.

Florida’s Department of Health on Tuesday posted an updated count with one death so far this year as the result of “lung injury associated with e-cigarette use, or vaping.”

On Wednesday, the Georgia Department of Public Health announced it had identified the state’s first death from a “vaping-associated illness.”

According to that agency, the Georgia patient had a history of heavy nicotine vaping.

Later in the day, health officers in Mississippi reportedly said a person, whom they identified only as being under age 30, had died of a vape-linked lung ailment.

In all the cases, the patients — who ranged in age from 18 to 68 — were hospitalized and developed pneumonia with no known infectious causes, the federal Centers for Disease Control said.

Dr. Anne Schuchat, principal deputy director of the CDC, said this week that the number of vaping-related lung illnesses could soon climb by the hundreds.

With Post wires