Honest about the risks, and specific about what prevents each one.
Malaria
CDC records malaria transmission in all areas of Senegal with no malaria-free zone listed, and Dakar is not carved out. Chloroquine-resistant P. falciparum is the main species — the one that causes severe disease — with P. malariae, P. ovale and P. vivax less common. The Government of Canada states that malaria is a risk to travellers here and that antimalarial medication is recommended for most travellers and should be taken as recommended.
Prevention Tablets for the whole trip, chosen against your itinerary and your other medicines. Plus bite prevention: covered skin, approved repellent, screened or sealed rooms, treated bed nets where mosquitoes cannot be kept out. If a fever turns up after you get home, tell the doctor you were in Senegal.
Zika
The Government of Canada states that Zika virus is a risk in Senegal and that it can cause serious birth defects. CDC lists it for Senegal and records that it spreads by mosquito bite and that an infected pregnant woman can spread it to her unborn baby. There is no vaccine and no preventive medicine, and the mosquitoes involved bite during the day.
Prevention If you are pregnant or planning a pregnancy, this belongs in the conversation before you book, not after. For everyone, daytime repellent, covered skin and screened rooms — the same measures that cover dengue and chikungunya.
Dengue and chikungunya
The Government of Canada describes dengue risk in Senegal as sporadic and says there is a risk of chikungunya, whose joint pain can last months or years. CDC lists dengue among the bug-borne diseases here. There is no vaccine or medication available in Canada to prevent dengue.
Prevention Repellent through the day rather than only at dusk — 20 per cent or more DEET, or picaridin, reapplied. Loose long sleeves do more in the heat than they look like they will.
Ticks, and the diseases they carry
CDC’s Senegal page names African tick-bite fever, spread by tick bite, and Crimean-Congo haemorrhagic fever, spread by tick bite and by touching the body fluids of an infected person or animal. The Government of Canada’s Senegal page does not name either — a difference we would rather show you than smooth over. Neither has a vaccine.
Prevention Long trousers with socks over the cuffs in grass and bush, permethrin-treated clothing if you will be out in vegetation, repellent on exposed skin, and a proper tick check at the end of any day spent outdoors. Remove any tick promptly and keep an eye on the spot.
Livestock and Rift Valley fever
CDC records Rift Valley fever for Senegal, spread by touching the blood, body fluids or tissue of infected livestock and by mosquito bite, and lists the prevention as avoiding animals and avoiding bug bites. The Government of Canada says the risk is generally low for most travellers and confirms there is no vaccine available.
Prevention No handling of livestock, carcasses or fresh animal products, and give slaughter areas and livestock markets a wide berth. No unpasteurised milk or dairy.
Schistosomiasis
A parasite picked up from fresh water. The Government of Canada says there is a risk in this destination, that most travellers are at low risk, and that travellers should avoid contact with untreated fresh water such as lakes, rivers and ponds — including swimming, bathing, wading and swallowing it. CDC frames it the same way. There is no vaccine and no preventive medicine.
Prevention Stay out of lakes, rivers and ponds entirely. Chlorinated pools are fine, and so is the sea. If washing water comes from a river, it wants boiling or treating first.
The sea
The Government of Canada is unusually specific here: coastal waters can be dangerous even for experienced swimmers, riptides are common, several drownings occur each year, beaches are generally unsupervised, and there is no warning system for unsafe conditions. For a country people visit for its coast, that deserves more than a footnote.
Prevention Swim where other people are swimming, and never alone. Ask locally about a beach before you get in, and treat an empty beach as information rather than luck.
Heat and sun
CDC’s advice for Senegal includes sunscreen of SPF 15 or higher, protective clothing, and seeking shade during the hottest part of the day, roughly ten in the morning to four in the afternoon, along with staying hydrated and watching for heat illness.
Prevention Water more often than you think, shade in the middle of the day, and a hat. It also bears on the malaria tablet we choose, since some increase sun sensitivity — tell us how much time you will be outdoors.
Animals, and rabies in particular
CDC says rabid dogs are commonly found in Senegal, advises not touching or feeding animals you do not know, and notes that rabies vaccines may only be available in larger suburban or urban medical facilities if an exposure occurs. The Government of Canada names children among those at higher risk of exposure.
Prevention No touching dogs, cats or monkeys. Any bite, scratch or lick on broken skin: wash with soap and running water for a full fifteen minutes, then seek medical advice the same day — and further out from Dakar, that may mean starting a journey rather than a phone call.
Getting treated, and paying for it
The Government of Canada says medical facilities are adequate in Dakar but limited elsewhere, that public and private facilities generally require an initial cash deposit, a guarantee of payment or confirmation of insurance, and that some prescription medications may not be available in Senegal.
Prevention Travel insurance that explicitly covers medical evacuation and hospital stays, with the policy number and emergency line saved offline. Enough of your own medication for the whole stay, in the original container, in carry-on. A travel health kit, especially away from the main cities.