Among a group of 578 patients interviewed on substances they had used, 78% reported using tetrahydrocannabinol (THC) with or without nicotine products; 37% reported exclusive use of THC products, and 17% said they had only used nicotine-containing products.
It previously had said there were 12 confirmed deaths from 10 states, and some 805 cases reported from 46 states and the U.S. Virgin Islands.
"As a growing wave of vaping-related illnesses is becoming more prevalent across the country, I was saddened to learn today that tragedy has struck here at home", Governor Lamont said.
The number of vaping-related illnesses has surpassed 1,000, and there's no sign the outbreak is fading, US health officials said Thursday.
A demonstrator vapes during a protest at the Massachusetts State House against the state's 4-month ban of all vaping product sales in Boston, Massachusetts, US in October 3, 2019.
So far, officials have not identified a particular electronic cigarette, vaping device, liquid or ingredient behind the outbreak.
Only Alaska and New Hampshire have not reported any illnesses.
"No single product or substance has been linked to all lung injury cases".
The others involve THC, the main psychoactive compound in marijuana, or a combination of THC and nicotine. Anne Schuchat spoke before a House Oversight subcommittee hearing on lung disease and e-cigarettes in Washington on September 24.
Over 440 samples of products from 18 states have been collected to date and those numbers continue to increase, U.S. Food and Drug Administration officials said on a media call on Thursday.
The FDA is working with the CDC to aid state and local health agencies in their investigations of the lung injury outbreak.
Most of the recommendations, including banning the sales of flavored e-cigarettes, will require legislation, he said.
No major e-cigarette company has been directly tied to the ailments, and federal investigators say most people affected by the lung problems report that they had vaped THC, the ingredient in marijuana that produces a high. Many of the THC-containing products linked to the outbreak in IL and Wisconsin came from "off the street" and not dispensaries, but Schuchat said it was premature to rule out any other concerning products.