MIAMI, FL — State health officials in Miami-Dade County said a mosquito-borne illness alert remains in effect as the total number of local cases of dengue fever has risen to 11 throughout the county in 2019.

“A case of dengue fever of local transmission has been confirmed in a local resident,” health officials confirmed in an alert Tuesday. “This case appears to be unrelated to other cases.”

Health officials said previously that at least two of the local cases appear to be related. They warned residents to take precautions.

“Dengue is a virus spread through mosquito bites through the Aedes mosquitoes which also spread chikungunya and Zika virus,” health officials said. “Most people infected with dengue have mild or no symptoms. Those that do develop symptoms recover after about one week.”

Only about one in four people infected with dengue ever get sick. Symptoms can range from mild to severe and often require hospitalization in severe cases, according to the Centers for Disease Control and Prevention.

The CDC said the most common symptom of dengue is fever with any of the following:

  • Nausea, vomiting
  • Rash
  • Aches and pains (eye pain, typically behind the eyes, muscle, joint, or bone pain)

Miami-Dade health officials suggested residents cover doors and windows with screens to keep mosquitoes from entering their homes.

Health officials gave the following tips for mosquito prevention:

  • Drain water from garbage cans, gutters, buckets, pool covers, coolers, toys, flower pots or any other containers where sprinkler or rainwater has collected.
  • Discard old tires, drums, bottles, cans, pots and pans, broken appliances and other items that aren’t being used.
  • Empty and clean birdbaths and pet water bowl at least once or twice per week.
  • Protect boats and vehicles from rain with tarps that don’t accumulate water.
  • Maintain swimming pools in good condition and appropriately chlorinated. Empty plastic swimming pools when not in use.
  • Cover all skin with clothing or repellent.
  • Wear shoes, socks, and long pants and long sleeves. This type of protection may be necessary for people who must work in areas where mosquitoes are present.
  • Apply mosquito repellent to bare skin and clothing.
  • Always use repellents according to the label. Repellents with DEET, picaridin, oil of lemon eucalyptus, para-menthane-diol and IR3535 are effective.
  • Use mosquito netting to protect children younger than 2-months-old.

For more information on mosquito-borne illnesses visit the Florida Department of Health website in Miami-Dade County.