A sixth particular person has died to an unknown sickness apparently linked to vaping, in response to well being officers.

Authorities in Kansas mentioned they have been the primary particular person to die within the state and had a historical past of underlying well being issues.

The sufferer, aged of their 50s, had signs that “progressed quickly” after they have been admitted to hospital, the Kansas well being and setting division mentioned.

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In an announcement, the division added: “The nationwide investigation has not recognized any particular vaping or e-cigarette merchandise linked to all instances. Many sufferers report utilizing merchandise with liquids that include cannabinoid merchandise, equivalent to tetrahydrocannabinol [THC, cannabis‘ intoxicating active ingredient].

“Kansas doesn’t have detailed data on what kinds of merchandise have been utilized by the deceased.”

There have been six reviews of sicknesses linked to vaping in Kansas to this point, with three confirmed or possible.

The state’s well being chief, Dr Lee Norman, mentioned within the assertion that it was “time to cease vaping”.

He added: “In the event you or a beloved one is vaping, please cease. The latest deaths throughout our nation, mixed with lots of of reported lung damage instances proceed to accentuate.

“I’m extraordinarily alarmed for the well being and security of Kansans who’re utilizing vaping merchandise and urge them to cease till we are able to decide the reason for vaping associated lung accidents and loss of life.”

US well being officers investigating the potential causes of the outbreak have recognized some 450 potential instances in 33 states.

Sufferers are coming into hospitals with cough, chest ache, shortness of breath, fatigue and vomiting.

Most of the reviews contain life-threatening sicknesses in beforehand wholesome individuals. Many sufferers acquired oxygen and a few wanted to be placed on respiration machines earlier than they recovered. Antibiotics didn’t assist, and it isn’t but clear whether or not steroid medicine boosted restoration.

No single machine, ingredient or additive has been recognized because the perpetrator. A lot of the sufferers mentioned they vaped merchandise containing THC, the high-producing ingredient in marijuana. Others mentioned they vaped solely nicotine and extra nonetheless consumed each THC and nicotine.

E-cigarette vapour accommodates tiny particles that carry flavour. Some early-stage laboratory and animal research counsel these can injury the lungs, airways and blood vessels, however extra analysis is required to raised perceive how human our bodies react to them.

A lot much less is thought in regards to the contents of THC oils and the way these chemical compounds behave when heated.

“I wouldn’t rule something out at this level as a result of we all know so little,” mentioned Dr David Christiani, of Harvard TH Chan Faculty of Public Well being.

Further reporting by AP