Prevention for Yellow Fever ?
If necessary, get vaccinated for yellow fever before travel. Avoid mosquito bites when travelling in tropical areas. Mosquitoes that spread yellow fever usually bite during the day. Travellers should take steps to reduce contact with mosquitoes when outdoors and inside.
Wear long-sleeved clothing and long pants. For extra protection, treat clothing with insecticide. Use insect repellent on exposed skin. The most effective repellents contain 20% to 35% DEET (N, N-diethylmethyltoluamide). Follow application instructions carefully when using these products.
Stay in well-screened areas as much as possible. Spray living and sleeping areas with insecticide. Use a net when sleeping in a room that is not screened or air-conditioned. For extra protection, treat the net with insecticide.