Arrange medical insurance. Consult health information on immunisations, prophylaxis and other measures. Obtain appropriate vaccinations and tests (plus certificates or reports if necessary) for both travel and healthcare work at the institution. Obtain malaria prophylactic tablets, nets, repellents, insecticides, appropriate clothes. Organise HIV PEP - if appropriate. Buy a medical kit if you wish and other medications e.g. for diarrhoea. Buy a medical tag/wristband about chronic illnesses/medications/allergies if necessary. Take contact details in case of emergency. Take a mobile phone and charger and ensure your phone works in the countries you're visiting. Email yourself details of itinerary/document numbers or carry photocopies. Remember to leave your contact details with your school and your family. Tell them where you're going and when you expect to return to the UK.