Where are you headed?

The region's hot spot: dengue far above normal, chikungunya still circulating, and power cuts that switch off the AC.

Roatán is famous for sand flies, and CDC recommends malaria prevention medicine for the Bay Islands too, though few cases are reported there.

CDC lists malaria pills below 1,800 m, including Serengeti and Zanzibar; Tarangire's tsetse flies are the classic safari nuisance.

CDC Level 2 Zika notice for Bali says pregnant travelers should avoid it. Malaria pills for Komodo, rural Lombok and Papua, not Bali.

Dengue and chikungunya run year-round; CDC advises yellow fever shots for Rio, Iguaçu and the Pantanal and malaria pills for Manaus.

Dengue is up 138% on 2025, so use repellent at Angkor; CDC reports no or negligible malaria in Siem Reap and the main Angkor Wat complex.

Active CDC Level 2 notice for chikungunya in the northwest, next to Tamarindo; dengue running above last year.

CDC advises malaria pills for the province that includes Punta Cana, even though reported cases there are very low.

CDC recommends malaria pills for nearly all of India, Delhi and Mumbai included. Dengue peaks Sept–Nov; Dec–Mar is the best window.

Malaria pills for the Mara, Amboseli and the coast (not central Nairobi); Kenya is on CDC's dengue list, and tsetse flies bite in some parks.

Dengue is above its 5-year median in 2026, so KL and Penang need daily repellent; rural forest trips, in Borneo or the peninsula, need a malaria plan.

CDC Level 2 chikungunya notice covers all of Nicaragua; the Corn Islands are in a CDC malaria-pill zone; Ometepe's chayule gnats swarm but don't bite.

Dengue jumped from late June; Bocas del Toro and San Blas are inside CDC's malaria-pill areas, Panama City is not.

Machu Picchu's biting flies bother visitors more than mosquitoes; Amazon trips need malaria pills, and dengue more than doubled in 2026.

CDC lists malaria pills for all of Palawan, incl. El Nido and Coron; Bohol declared a dengue outbreak in Aug 2026; none needed for Manila.

On CDC's dengue list after a 100,000-case 2026 epidemic centered on Colombo. Malaria-free since 2016, so no pills are needed.

Dengue is running 37% above 2025, worst in Ho Chi Minh City and the Mekong; no malaria pills for Hanoi, Da Nang or Saigon.

Galápagos had Ecuador's top dengue rate in 2026; Quito is too high for mosquitoes, but Amazon lodges need malaria pills and yellow fever vaccine.

The highlands around Antigua and Atitlán are low-bite. Tikal and the Petén lowlands carry CDC malaria advice.

Cape Town and the Winelands are malaria-free; Kruger and the Lowveld need CDC-listed malaria pills, most of all in the Sept-May rains.

Tiger mosquitoes bite by day in Rome, Florence and Venice; 2025-26 brought record West Nile plus local dengue and chikungunya clusters.

Dengue is back to baseline. The beach "sandflies" are biting midges, worst at dawn, dusk and on calm days.

Malaria-free since 2023 with endemic dengue. Sand flies on the cayes and in Placencia are the daily nuisance.

Quintana Roo's dengue count kept climbing into October, plus local chikungunya. Dusk at lagoon-side resorts and cenotes is the bite window.

Cartagena, Medellín and Bogotá need no malaria pills, but CDC lists a yellow fever vaccine entry requirement and an active outbreak notice.

No malaria, but dengue is endemic; 2025's big Western Division outbreak has eased to normal levels in 2026. Use daytime repellent.

Daytime tiger mosquitoes across the south; Riviera and Provence had record chikungunya in 2025, Bordeaux in 2026, plus record West Nile.

Athens was the center of Greece's record 2026 West Nile season; the windy Cyclades stay light and green islands bite harder.

Dengue has been rising in Grenada since August 2026; around Grand Anse and Carriacou, use repellent by day and at dusk.

Dengue ran above normal all of 2026 and the Maldives is on CDC's dengue list. Resorts fog; local islands less so. No malaria.

Coastal dengue that dips in the dry winter months; Mexico City's altitude keeps it almost bite-free.

Calmer after the 2024–25 dengue epidemic, but this year's cases still put half of patients in hospital.

Dengue fell sharply in 2025 after a 2024 outbreak. Rainforest hikes around Soufrière need the most repellent.

Daytime dengue everywhere but 2026 is a quieter year; malaria pills only for border provinces, not Bangkok, Phuket or Krabi's islands.

A 2024–25 dengue outbreak hit all three islands and has since dropped sharply.

June black flies and mosquitoes rule Ontario and Quebec cottage country; West Nile and Lyme ticks are the real health notes.

In Antigua the usual biters are beach sand flies at sunrise and sunset; dengue was at baseline levels in early 2026.

Summer means Ross River virus in Queensland, sand flies on Whitsunday beaches and Outback bush flies; Sydney and Melbourne are low-risk.

In the BVI, mosquitoes are rare under sail, but at sheltered moorings like the Bight they can come aboard at night.

Evening mosquitoes on the Dalmatian coast but low disease risk; West Nile stays mostly inland around Zagreb, and dengue last appeared in 2010.

No malaria since WHO's 2024 certification, but dengue hit Red Sea resorts (Hurghada 2023, Sharm 2024); Nile evenings bring mosquitoes.

Lapland's countryside mosquitoes swarm in late June and July, Helsinki is nearly bite-free, and archipelago ticks carry TBE.

Dengue below epidemic levels since 2024. Negril's sunset sand flies are the bigger complaint.

Unscreened bedrooms on July nights are the main fight, but 2026 brought the first big West Nile season, centered on Rotterdam and Utrecht.

Daytime tiger mosquitoes on the Costa Brava, Valencia and Mallorca; West Nile clusters around Seville; Aedes aegypti keeps reaching the Canaries.

The French side reported a calm 2026 for dengue; the usual pests on both sides are beach sand flies at dawn and dusk.

No malaria; dengue is quiet in 2026 after the 2024-25 epidemic. Bring repellent for Moorea, the airports and Marquesas nonos.

Low disease risk. Out Island beaches in the Exumas and Eleuthera are no-see-um country on calm evenings.

The 2023–24 dengue outbreak is over. No-see-ums come out about an hour before sunset at Grace Bay.

Dengue can hit Buenos Aires and Iguazú in late summer, though 2025-26 was quiet; Iguazú needs yellow fever vaccine; Patagonia has January horseflies.

Dry and windy, so mosquitoes are scarce. Expect the odd ankle bite at dawn or dusk on still days.

Dry, windy Bonaire has few biting bugs; expect some around sundown at open-air restaurants and more after rain.

No dengue cases reported in 2026 so far. Salt-marsh mosquito swarms are a fall problem, small in winter.

Quiet in 2026 and kept in check by the trade winds; dawn and dusk sand flies on sheltered beaches.

No local mosquito-borne disease on the mainland, but the day-biting tiger mosquito is spreading; Madeira has the dengue mosquito.

Dengue near multi-year lows, helped by Wolbachia mosquito releases, and no malaria; bring repellent for the Botanic Gardens and Sentosa trails.

No mosquito-borne disease, but Milford Sound and West Coast sandflies are legendary. Cover up and pack repellent for Dec–Apr trips.

The biter in Connemara and Kerry is the midge, not a mosquito; there is no mosquito-borne disease, but hillwalkers should check for ticks.

Summer brings day-biting tiger mosquitoes to Tokyo and Kyoto parks and shrines, but disease risk is minimal; JE matters only rurally.

No mosquito-borne disease, but Highland midges swarm Skye and Glencoe on still summer days, and Highland ticks carry Lyme disease.

The CDC lists no dengue here (two cases in 2026, origin unstated); summer mosquitoes are light thanks to sea breezes, with bites on still August evenings.

Nearly bite-free, but Lake Mývatn's midge swarms (mostly non-biters) and the Laxá river's black flies (biters) peak in summer; first mosquitoes found in 2025.