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SOLANO COUNTY-

Solano County health officials confirmed Thursday a school-aged child tested positive enterovirus, or EV D68.

This marks the first confirmed case in Solano County and the 9th in California.

LEARN MORE: Enterovirus D68, Easy Steps to Avoid Spreading the Disease

Solano County's Chief Medical Officer, Michael Stacey, says the child that tested positive for the virus was not hospitalized because the symptoms were mild and expected to go away on their own.

"The only time to be hospitalized would be if you had severe illness so in this particular case the illness was not severe," Dr. Stacey said.

The virus has rapidly spread across the country this year, causing respiratory illness in many children.

In Vacaville, some parents told FOX40 they were trying to protect their children from getting sick.

"I'm not gonna be able to take her out without being worried 'what if someone else has gotten it an given it to her'," Victoria Hill said.

Even though the case in Solano County is said to be mild, health experts still urge parents to be cautious and aware.

"The cause for concern is really that we know we have this virus in our community and we need to take those precautions so that we limit its spread," Dr. Stacey said.

Dr. Stacey says with more than 500 confirmed cases of EV D68 nationwide, it was only a matter of time until it spread to our area.

Enterovirus is most commonly seen in children. It's spread through bodily fluids like saliva and mucus. Doctors say children with asthma are more likely to show serious symptoms.

Vacaville resident, Jeannie Meyers, said she worries about her grandchildren.

READ: What is Enterovirus D68?

"Two of them have asthma and allergies so it would much more effect them and so it is a concern when there's a contagious disease going around," said Meyers.

The Solano County diagnosis is in addition to two cases revealed in Alameda County Thursday.

Health officials say if children have serious symptoms like difficulty breathing, weakness in the limbs or wheezing, they should see a doctor right away.

There is no treatment or vaccine for enterovirus.