New strains of disease are evolving and new vaccines are being released. Within countries, health risks vary by locality. Local authorities may be slow to tell the world about disease outbreaks. Your body, personality and travel plans are unique. If you want to eat from roadside stalls, you may need more jabs than if you eat in five-star hotels.
Some serious diseases have no vaccine or cure.
Your medical adviser can tell you how to prevent mosquito-borne illnesses like malaria. Take the necessary things with you. Hepatitis C is a blood-borne virus that can spread through skin puncture, a toothbrush, razor or even tweezers. Practise safe sex. Pack a supply of reliable condoms and water-based lubricant.