Florida: At least 10 locally acquired cases have been reported in Florida with onset of symptoms in July/ August: 8 cases in Hillsborough County and 2 cases in Pinellas County. On 08 Aug 2026, Florida’s arbovirus surveillance report recorded 65 travel-associated dengue cases with illness onset in 2026. Northern
Virginia: Virginia confirmed its first documented locally acquired dengue case on 4 August 2026 in a Northern Virginia resident with no recent travel outside the state. Authorities suspect that transmission originated from a separate travel-associated case diagnosed approximately two weeks earlier, with local mosquitoes subsequently transmitting the virus.
Prevention: Optimal protection against mosquitoes 24/7, including against other mosquito-borne diseases. The Swiss ECTM does not recommend vaccination against dengue for travellers to the US.
In case of fever:
- Make sure you hydrate enough and take paracetamol medication to relieve symptoms.
- Avoid taking medications containing acetylsalicylic acid (e.g., aspirin®), as this can increase the risk of bleeding in the event of a dengue infection. However, do not stop taking medications containing acetylsalicylic acid if they are already part of your regular treatment for an underlying condition.