The Washington State Board of Health passed an emergency rule banning the sale of flavored vapor products or any products that will be used to create a flavored vapor product.

The rule took effect Thursday and will last for 120 days, according to the Washington State Department of Health.

The Board of Health and Department of Health will work closely with the Liquor and Cannabis Board on plans for implementation and enforcement now that the emergency rule is in place.

“This is a critical part of our response to the youth vaping epidemic and the outbreak of vaping associated lung injury in Washington and throughout the country,” said Secretary of Health John Wiesman.

“While we don’t know the exact cause of the lung injury, we know these products are not safe and we must act quickly to protect young people,” he said.

Earlier this month, Governor Jay Inslee signed an executive order directing the department to ask the board to adopt the emergency rule and take other actions to address the outbreak of vaping associated lung injury. There are currently seven cases in Washington and 1,299 cases confirmed nationwide by the Centers for Disease Control and Prevention.

The outbreak also appears to be concentrated in young people. Nationally, the median age of patients is 23. Five of the seven Washington patients are between 10 and 29 years old.

“We know from our health impact review of House Bill 1932 that flavors get adolescents and young adults to start vaping and smoking, and the health effects of added flavors in marijuana vapor products have not been well researched,” said Chair of the State Board of Health Keith Grellner.

“Eliminating flavors from these products is an important first step to better protecting the health of people in Washington, especially to prevent and discourage youth and young adults from starting or continuing to vape unknown, unspecified, untested and unverified chemicals,” he said.

In addition to the emergency rule, the department is investigating the outbreak by taking steps to warn consumers of the risks of vaping and asking health care providers to report all suspected cases, according to health department officials.

The department will also expand educational campaigns to raise awareness of the hazards of vaping, including an emphasis on the high risk of buying and using products from the illegal market.