Hundreds more Americans have been sickened by a severe vaping-related illness, with the official tally set to be updated on Thursday, according to a U.S. health official speaking at a congressional hearing on Tuesday.
The House of Representatives began public hearings this week about the mystery vaping-related lung disease that, as of last week, had sickened 530 people in 38 states. The illness has claimed nine lives.
"We believe that probably hundreds more [cases] have come in since the numbers we released last week," said Anne Schuchat, principal deputy director of the Centers for Disease Control (CDC).
She noted that latest-generation vaping devices use "nicotine salts" that boost the amount of the addictive substance that reaches the brain, presenting a particular risk to younger consumers, whose brains are still developing.
"It feels like that's kind of vaping on steroids," said Representative Raja Krishnamoorthi, chairman of the subcommittee on economic and consumer policy, as he called for further investigation.
Schuchat emphasized that the CDC has still not identified any specific product or compound — including tetrahydrocannabinol (THC), the high-inducing component of marijuana, or Vitamin E acetate — that is linked to all cases of the illness.
The CDC, which has activated its emergency operations centre to co-ordinate an investigation, has advised that people quit vaping if they can. Canadian health officials have given the same advice.
A man over age 50 who used e-cigarettes died in Kansas as state health officials prepared to join the waves of experts testifying before Congress on Wednesday, Kansas Governor Laura Kelly announced.
"Today, I am saddened to announce the death of a second Kansan in association with this outbreak," the governor said in a statement, noting the man had underlying medical conditions.
At Tuesday's subcommittee hearing, Dr. Ngozi Ezike of the Illinois Department of Public Health urged Congress to ban flavoured vaping products, "which are particularly targeted to young people."
On Wednesday, the acting commissioner of the Food and Drug Administration will appear before a House energy and commerce subcommittee and be asked about the public health threats of e-cigarettes.
Massachusetts declares emergency
For those who continue vaping, public health officials urge consumers to avoid buying vaping products on the street, using marijuana-derived oil with the products or modifying a store-bought vape product.
The governor of Massachusetts declared a public health emergency on Tuesday and ordered a four-month ban on the sale of vaping products in the state.
The state will block all sales of e-cigarettes and supplies, both those used for tobacco and marijuana, which is legal in the state, Republican Governor Charlie Baker and state officials told a news conference.
As of Tuesday, 61 cases of potential cases of lung disease related to the use of electronic cigarettes and vaping in Massachusetts have been reported to the state.
The move goes further than New York state and Michigan, which this month banned the sale of flavoured vaping products, out of concern that those products appeal to children.
The ban took immediate effect and will last through Jan. 25, officials said.