Seek travel-health advice before visiting a malaria-risk area. Bite prevention and any prescribed preventive medicine depend on the destination and personal circumstances. Report travel history when seeking help for fever. UK service arrangements in the source need local interpretation. This is for travellers, including people returning after time away. Prevention depends on destination and individual circumstances and needs advice before travel. Residents also benefit from household bite prevention, treated nets and prompt testing when ill; travel medicines do not replace these measures. Mention travel when describing fever. This guide does not name preventive drugs or transfer UK service numbers to Nigeria.