The day to day battle to contain dengue fever on the Treasure Coast continues.
Mosquito control agents were back out again Wednesday morning, going door to door in the Rio and Jensen Beach areas.
11 people have contracted dengue fever in recent weeks.
Dengue fever is transmitted by an infected mosquito. The disease cannot be spread person-to-person.
Residents are being asked to empty any container that has standing water, as they serve as prime breeding grounds.
"You name it, if it's capable of holding water, it's capable of breeding. That's where we are finding them… tires, it doesn't have a rim on it so it's getting water on it," said Gene Lemire with Martin County Mosquito control.
Symptoms of dengue fever include headache, high fever, and joint pain that usually last about a week.