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MILWAUKEE — Wisconsin health officials said Friday they’ve linked vaping to 11 recent cases where teenagers and young adults developed severe lung disease that required hospitalizations.

Another seven cases that may also be linked to vaping are being investigated but have not yet been confirmed, health officials said.

“We strongly urge people to avoid vaping products and e-cigarettes. Anyone — especially young people who have recently vaped — experiencing unexplained breathing problems should see a doctor,” said Department of Health Services Secretary-designee Andrea Palm.

The health department said all the patients they interviewed reported vaping in the weeks and months prior to being hospitalized after experiencing shortness of breath, fatigue, chest pain, coughing and weight loss. Officials said the severity of the cases varied and some patients needed assistance breathing.

Some of the patients improved with treatment, but officials said they’re investigating whether the lung disease will cause long-term damage.

The counties with confirmed cases include Racine, Door, Walworth, Dodge, Waukesha and Winnebago.

Investigators are trying to determine what type of vaping products were used in all the cases.