CDC Issues Dengue Fever Alert Ahead of Spring Travel Season

ATLANTA, Ga. — As spring break approaches, the Centers for Disease Control and Prevention (CDC) has issued a dengue fever alert due to rising case numbers in popular travel destinations, notably Puerto Rico and the U.S. Virgin Islands. The advisory, released on March 18, highlights an uptick in cases both globally and among U.S. travelers.

The CDC reported a notable increase in dengue activity, with more than 13 million cases recorded in North, Central, and South America, including the Caribbean, in 2024 alone. This trend has raised concerns among health officials as the spring and summer months coincide with peak travel times and increased mosquito activity.

Spring breakers are particularly at risk, as the CDC classified dengue fever as a level 1 health alert. The agency emphasizes the importance of caution, recommending that travelers practice preventive measures to avoid mosquito bites. Simple steps include using EPA-registered insect repellent, wearing long-sleeved clothing, and ensuring accommodations are equipped with air conditioning or screened windows.

“Spring and summer travel increases the risk of both travel-associated and locally acquired cases of dengue fever,” the CDC stated. The alert comes amid reports of growing dengue cases in countries such as Brazil, Colombia, and Mexico, with U.S. travelers returning from these regions showing higher-than-expected infection rates.

In 2024, the CDC noted that local transmission of dengue fever was observed in several U.S. states, including California, Texas, and Florida. A significant surge in U.S. traveler cases was also documented, with 3,483 cases recorded last year, marking an 84% increase from 2023.

“The increase in dengue activity is expected to continue as many travelers head to areas with known outbreaks,” said Dr. Mark Fischer, regional medical director at International SOS. Symptoms of dengue typically include fever, severe headaches, and muscle and joint pain.

The CDC underscores the importance of recognizing severe symptoms that may emerge during infection, which include persistent vomiting, abdominal pain, or signs of bleeding such as bloody noses or bruising. Those experiencing such symptoms are urged to seek medical attention immediately.

Currently, there is no specific medication to treat dengue fever; however, infected individuals are advised to rest, stay hydrated, and manage pain with acetaminophen. The CDC states that while most recover within a week, there is a risk of developing severe dengue, which can be life-threatening. In extreme cases, severe dengue can lead to hemorrhagic fever and shock.

A vaccine for dengue fever is available for individuals aged 9 to 16 who have previously tested positive and live in areas where the infection is common. For now, the best prevention remains avoiding mosquito bites and remaining alert in areas experiencing outbreaks.

As the spring travel season rapidly approaches, public health officials urge travelers to stay informed of the risks associated with dengue fever and to take proactive steps to ensure their health and safety while enjoying their vacations.