Mosquito-Borne Diseases in Tonga
Mozzwise tracks 3 mosquito-borne diseases in Tonga based on WHO, CDC, and ECDC surveillance. Each entry below cross-links to a full Mozzwise disease briefing.
Dengue Fever is recorded in Tonga with moderate severity according to current surveillance. Travelers to endemic areas, young children, pregnant women, and people with prior dengue infection. A second infection with a different serotype carries a significantly higher risk of severe disease. Reported globally in: Tropical and subtropical regions worldwide — Southeast Asia, Latin America, Sub-Saharan Africa, Pacific Islands.
Lymphatic Filariasis is tracked as present in Tonga based on historical surveillance, though active transmission is not currently flagged. Long-term residents and expats in endemic tropical areas. Very rare in short-term tourists. The infection requires sustained, repeated exposure over months — a two-week holiday is extremely unlikely to result in infection. Reported globally in: Tropical Africa, South Asia, Southeast Asia, Pacific Islands. Approximately 47 endemic countries.
Zika Virus is tracked as present in Tonga based on historical surveillance, though active transmission is not currently flagged. Pregnant women and those planning pregnancy are the primary concern. The virus can cause devastating birth defects including microcephaly. Most adults recover without issues within a week. Reported globally in: Tropical Americas, Southeast Asia, Pacific Islands. Ongoing low-level transmission since the 2015-2016 epidemic.