An Ohio teenager who has never been vaccinated against the disease while he was a child because of his parents' decisions, now chooses to be vaccinated at age 18.

Ethan Lindenberger of Norwalk, Ohio, contacted Reddit users two months ago to ask him if he could be vaccinated in adulthood.

"My parents think that vaccines are a kind of government program … I've never been vaccinated, God knows how I'm still alive," he wrote. He asked "where do I get vaccinated? Can I get vaccinated at my age?"

He told Tuesday at "Good Morning America" ​​that he had never received any vaccines against hepatitis, polio, measles, mumps, rubella or chicken pox.

"I saw that there were a lot of people with different opinions and, in exploring these opinions, I came to the conclusion that they were good and beneficial," he said. Lindenberger told GMA.

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Her mother, Jill Wheeler, who has other unvaccinated children, told GMA that she was "shocked" when she heard about her son's decision.

Lindenberger has since received vaccines against hepatitis A, hepatitis B, influenza and HPV, according to information collected by the Good Medical.

More: What you need to know about the measles outbreak that has affected more than 50 people in Washington and is a hot spot for anti-vaccination

People who choose not to vaccinate have become a global threat to health in 2019, reported the World Health Organization. The CDC recognized that the number of children who had not been vaccinated before the age of 24 months was gradually increasing.

More than 50 people, mostly unvaccinated children, have recently been infected with measles during a public health emergency in Clark County, Washington State, a known hot spot against the vaccination. The two-dose measles vaccine is 97% effective against the virus, according to the CDC.

On Friday, lawmakers in Washington heard a bill that would prevent parents from choosing the combined measles, mumps and rubella vaccine for their school-aged children.

More: A quarter of kindergarten children in this county of Washington are not immune. There is now a measles crisis

More: The heartbreaking letter of Roald Dahl on the death of his daughter by measles resonates despite the outbreak in Washington

More: Hundreds Protest Washington's Vaccine Bill, Requiring Measles Vaccines

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