Wednesday , June 16 2021

Mystery Lung Illness Linked To Vaping. Nearly 100 Cases Suspected In US

Officials are not sure whether the illnesses are linked to the e-cigarette devices. (Representational)

State and federal health officials are investigating nearly 100 cases of mysterious lung disease linked to vaping and e-cigarette use in 14 states, many involving teens and young adults. A large number of those stricken ill have been hospitalized, with some in intensive care and on ventilators.

At least 31 cases have been confirmed as of Friday, state officials said, and more are under investigation. Medical authorities say it is unclear whether patients will fully recover.

Officials are warning clinicians and the public to be alert for what they describe as a serious and potentially dangerous lung injury. Symptoms include difficulty breathing, shortness of breath or chest pain before hospitalization. Health officials said patients also reported fever, cough, vomiting and diarrhea.

The Centers for Disease Control and Prevention said Friday that officials are working with health departments in at least five states with confirmed cases – California, Illinois, Indiana, Minnesota and Wisconsin – to determine the cause of the condition after a "cluster of pulmonary diseases linked" to e-cigarette use "was reported among adolescents and young adults in recent weeks. In a call Friday with state health authorities, CDC officials said they were probing 94 possible cases in 14 states.

To date, there is no consistent record that infectious disease is culprit, CDC spokeswoman Kathy Harben said. While some of the cases appear similar, officials said they do not know whether the diseases are associated with the e-cigarette devices themselves, or with specific ingredients or contaminants inhaled through them. Health officials have said patients have been described vaping a variety of substances, including nicotine, marijuana-based products and do-it-yourself "home brews."

Underscoring the growing level of concern, CDC officials say they are notifying health care systems and clinicians across the country about illnesses and what to watch for. State health departments have also issued warnings.

E-cigarettes have grown in popularity over the past decade despite little research on their long-term effects. In recent years, health authorities have been warned of an epidemic of vaping by underage teenagers. The leading brand, Juul, said it is monitoring disease reports and has "robust safety monitoring systems in place."

Gregory Conley, president of the American Vaping Association, a group that advocates for vaping products, said that every month, about 10 million adults vape nicotine without major issues. "It appears much more likely that the products causing lung damage are amateur-made street vapes containing THC or illegal drugs, not nicotine," he argued.

But the health authorities are not at all sure that is correct.

"We didn't have that kind of history with vaping to be able to assure anyone – teens included – that this is a safe practice," said Emily Chapman, chief medical officer at Children's Minnesota, a health system headquartered in Minneapolis, which has cared for four teens with the disease, ages 16 to 18.

In the past month, teenagers presented with symptoms that appeared manageable and consistent with viral infection – shortness of breath, coughing, fever and abdominal discomfort, Chapman said. But the teens continued to deteriorate despite treatment, including antibiotics and oxygen support. Some of the teens suffered respiratory failure, requiring the use of ventilators, she said.

Chapman said physicians eventually made the connection tovaping-associated acute lung injury. When patients were treated with steroids, among other therapies, they showed improvement. Clinicians don't know if patients will suffer long-term injuries, she said.

"These cases are extremely complex to diagnose, but symptoms can mimic a common infection yet can lead to severe complications and extended hospitalization," Chapman said. "Medical attention is essential. Respiratory conditions can continue to decline without proper treatment."

E-cigarettes are a diverse group of products containing a heating element that produces an aerosol from a liquid that users can inhale through a mouthpiece. Millions of Americans use e-cigarettes, with the greatest use among young adults. In 2018, more than 3.6 million U.S. middle and high school students said they had used e-cigarettes in the past 30 days, according to the CDC.

A National Academy of Sciences, Engineering and Medicine report in January found that while e-cigarettes are less harmful than conventional cigarettes, which produce a raft of toxic substances when burned, they still pose health risks. Among nonsmoking adolescents and young adults, the report said, "their adverse effects clearly warrant concern," among them "moderate records for increased cough and wheeze" and increased incidence of asthma.

But many medical authorities believe there isn't enough data to know their full effects, especially on young people.

Dylan Nelson, of Burlington, Wisconsin, who has asthma and has been vaping for about a year, was hospitalized with pneumonia last month after he started having trouble breathing. The 26-year-old described feeling like he was breathing through a straw. He said he was coughing, his heart racing and his breathing hard and fast.

Nelson said he spent days in the hospital, some of that time attached to a ventilator. His mother, Kim Barnes, said when a nurse told her she might be related to vaping, it was a wake-up call for her.

Now, she wants to convey that sense of urgency to other parents: "You need to sit your kids down and tell them the dangers of this stuff. If you're an adult, wise up – this is not good. Look into it before you decide to pick this stuff up and start using this. "

Wisconsinhad 15 confirmed cases as of Thursday, including Nelson's, and another 15 under investigation, all of whom were hospitalized, the health department said. The first cases were among teens and young adults, but newer ones include patients in older age groups, officials said. All patients reported vaping in the weeks and months prior to being hospitalized, but officials said they did not know the names and types of products used.

Minnesota's health department, meanwhile, urged providers to be alerted "for vaping as a cause for unexplained breathing problems and lung injury and disease." It is asking clinicians to look for similar cases and report them.

"There are still many unanswered questions," said Ruth Lynfield, Minnesota state epidemiologist and health department's medical director. "But the health harms emerging from the current epidemic of youth vaping in Minnesota continue to increase."

Doctors had seen "scattered cases" of lung diseases tied to vaping before, but they had not identified a pattern until now, said Chapman of Minnesota Children.

"I think it's important to understand that vaping is assumed to be safe, and yet we know so little about it," she said.

(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)

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