JACKSONVILLE, Fla. -

Respiratory Syncytial Virus is a common virus that leads to mild, cold-like symptoms in adults and older healthy children. It can be more serious in young babies, especially those in high-risk groups.

According to the Centers for Disease Control, the number of RSV cases in Florida has jumped in recent weeks. In fact, there are now four times as many cases as there were five months ago.

Doctor Bob Luten with Shands Hospital said is the leading cause of bronchitis and pneumonia in children and has been linked to asthma.

“It feels like a cold with a mild fever. However, with high risk kids those could get very sick and be hospitalized in intensive care,” said Luten.

Annie Roberts' sons, Luke and Liam, don’t fall into a high-risk group, but RSV still gave their mom a week of worry.

"The scary part is they don’t eat very much cause they don’t feel good so just trying to take care of the nose take care of the cough and get them to eat,” said Roberts.

Doctor Luten said that, in most cases, most patients with RSV don't experience more than a cold, but that parents should remain alert and vigilant for signs of RSV.

“Anything that concerns you about their breathing, that’s when you need to contact a doctor or go to the emergency room,” said Luten.