A 10-year-old girl has been diagnosed with enterovirus-D68 in Polk County, according to the Florida Department of Health.

This is the first reported case of enterovirus-D68 in Florida. The recent outbreak of the uncommon virus has made children in 43 states and the District of Columbia ill and has left some hospitalized, according to NBC News.

The virus can cause mild to severe respiratory issues, according to the Centers for Disease Prevention and Control. Children with asthma are the most susceptible to the virus.

Enterovirus-D68 is highly contagious and can spread through droplets in coughs or sneezes, or when someone touches a contaminated surface, according to the FDOH. Officials recommend frequent hand washing and non-alcohol surface disinfectants because alcohol-based hand sanitizers and disinfectants have proven ineffective against the virus.

"The most effective way to prevent enteroviruses is to practice good hygiene regularly by washing hands often,” said Deputy Secretary for Health and Deputy State Health Officer for Children's Medical Services, Dr. Celeste Philip in a press release. "Those having cold-like or flu-like symptoms should stay home from child care centers, school or work and, if possible, remain apart from other family members.”

Stay with NBC6.com for updates on this developing story.

Ed. Note: A previous version of this article incorrectly named the county where the child was diagnosed. Florida Department of Health Officials have since modified the name of the county.