Honest about the risks, and specific about what prevents each one.
Being a long way from care — and paying up front
The Government of Canada says health care in Chile is good, especially at private facilities, and widely available in Santiago and other major cities, but can be very limited in remote areas. Treatment at private clinics and hospitals is expensive, and most doctors and smaller hospitals typically require advance payment. It asks travellers with a pre-existing condition to carry an up-to-date medical report from a Canadian physician.
Prevention Insurance covering medical evacuation and hospital stays, and for adventure activities, helicopter rescue. Real access to funds on the day. A medical report letter and a written medication list — we can print both. Bring enough of your own medication for the trip plus spare, in labelled packaging, in hand luggage.
Altitude, heat and dehydration
The Government of Canada tells travellers doing outdoor activities in Chile to know the symptoms of acute altitude sickness, dehydration and heatstroke, and says plainly that these can be fatal. It adds that trails are not always marked, that weather can change rapidly regardless of season, and that you should carry enough water. CDC does not raise altitude illness for Chile, but does warn about heat illness and notes that UV exposure is higher at high elevation and where light reflects off snow, sand and water — which describes the Atacama and the southern icefields exactly.
Prevention Pace the first days if you are going high, and drink more than feels necessary. Sun protection as a daily habit, not a beach one. Tell us your ascent plan — altitude medication is prescribable by a pharmacist in Alberta and we will work out whether yours calls for it.
Dengue and chikungunya — with a caveat
The Government of Canada names both as risks in Chile: dengue mosquitoes typically bite in the daytime, particularly around sunrise and sunset, severe dengue can be fatal, and there is no vaccine or medication available in Canada to prevent it. CDC’s Chile page lists neither disease. We are reporting the disagreement rather than picking a winner.
Prevention Repellent with DEET or picaridin, applied through the day rather than only at dusk. Long sleeves and permethrin-treated clothing where you are outdoors for long stretches.
Hantavirus
Listed by CDC among Chile’s diseases, and it is on the non-vaccine-preventable side of that list — there is nothing to give you for it. CDC says it spreads by breathing in air or accidentally eating food contaminated with the urine, droppings or saliva of infected rodents, less commonly through a bite from one, and — for the Andes virus specifically — occasionally from another person who is sick with it. That first route is why a shut-up cabin, refugio or shed is the moment worth thinking about rather than the countryside in general.
Prevention CDC’s advice is short: avoid rodents and the areas where they live. Keep food and rubbish sealed, and treat cleaning out a closed-up building as the part that carries the risk, not the boring part. Mention any rodent contact to a doctor if you become unwell, including after you get home.
Food, water and fresh water you swim in
The Government of Canada’s rule for Chile is four words: boil it, cook it, peel it, or leave it. It also advises not to get fresh water in your eyes, mouth or nose when swimming in streams, lakes or canals — especially after heavy rain or flooding — and not to swallow water when showering or in pools and hot tubs. CDC lists leptospirosis, which is spread exactly that way, among Chile’s diseases; the Government of Canada does not name it.
Prevention Safe food and water choices, frequent handwashing, and rehydration salts in the bag. Cover cuts and scratches with waterproof dressings before you go near fresh water.
Earthquakes, tsunamis and volcanoes
The Government of Canada describes Chile as a very active seismic zone where earthquakes and tsunamis can occur anywhere in the country, warns a tsunami can occur within minutes of a nearby earthquake with risk persisting for several hours, and counts 500 active volcanoes — naming Villarrica, Osorno, Llaima, Calbuco and Grupo Descabezados among those closely monitored. Ash clouds can disrupt flights.
Prevention On the coast, find the tsunami evacuation route on day one. Near a monitored volcano, follow local alerts and be ready to move plans at short notice. Keep a few days of essential medication with you rather than in a checked bag.
Landmines on the remote borders
Unexpected and worth stating plainly: the Government of Canada says marked minefields pose a risk in remote areas bordering Argentina, Bolivia and Peru. It also requires you to register with Chile’s national border authority, DIFROL, for outdoor activities along those borders.
Prevention Stay on main roads and paved surfaces. Keep out of fields, roadside ditches, shoulders and unmarked trails. Cross only at official crossings and heed the signs.
Roads, buses and city crime
CDC names motor vehicle crashes the number one killer of healthy travellers abroad. The Government of Canada describes urban road conditions as generally very good but secondary and mountain roads as dangerous — insufficient lighting, no guardrails, poor maintenance, winter weather, strong side winds, unpaved surfaces. It also notes tourists on intercity buses, particularly on the Calama routes towards Antofagasta, San Pedro de Atacama and Santiago, have been robbed while sleeping, and that the country overall sits at exercise a high degree of caution because of ongoing demonstrations, civil unrest and crime.
Prevention No night driving on secondary or mountain roads. Valuables on you rather than in the overhead rack on a night bus. Avoid demonstrations rather than watch them.