(Vax-Before-Travel News)

The Hong Kong Special Administrative Region Government, through its Travel Health Service under the Centre for Health Protection (CHP), has cautioned residents to exercise care regarding Dengue fever when traveling abroad this year.

The advisory emphasizes that the disease is endemic in over 100 countries, particularly in Southeast Asia and the Western Pacific—popular destinations for Hong Kong travelers.

In an update posted on February 5, 2026, the Travel Health Service reiterated that Dengue remains a persistent threat in many tropical and subtropical regions.

As of early 2026, there have been six reported imported cases of Dengue.

In 2025, Hong Kong recorded 59 imported Dengue cases.

The countries that contributed the most cases last year include the Philippines (12 cases), Indonesia (11 cases), India (9 cases), and Thailand (9 cases).

Notably, there were no local transmissions reported last year.

Regionally, Dengue remains a challenge. As per cumulative figures from 2025, with partial data from 2026, Indonesia reported 148,922 cases, with 403 recorded in early 2026; Vietnam had 184,903 cases in 2025; and India reported 120,729 cases during the last year.

Travelers returning from areas where Dengue is prevalent should seek medical attention promptly if they feel unwell and inform their doctors about their travel history. Additionally, CHP says those planning to travel to these regions should take the necessary precautions against this mosquito-borne disease.

Seperately, the U.S. CDC recently stated, ‘it has identified a higher-than-expected number of Dengue cases among returning U.S. travelers from certain countries in recent months.’

As of early 2026, there is currently no locally registered Dengue vaccine available for general use in Hong Kong, according to the Centre for Health Protection and the Department of Health.

However, in nearby dengue-endemic countries that are popular with Hong Kong travelers, the second-generation vaccine Qdenga is available in various settings, including private clinics, national programs, and public health initiatives.

Detailed information on the latest Dengue fever situation in Hong Kong, as well as neighbouring and overseas countries and areas, is available on the Centre for Health Protection’s website.