Five questions on: Malaria A round-up of the key facts nurses for advising travellers to endemic destinations, writes Alex Turnbull Top 10 questions: Tick-borne encephalitis Margaret Umeed looks at what should be considered when advising travellers about this condition An update on the Zika virus Margaret Umeed explains what primary care nurses need to tell Brazil-bound travellers this summer The threat of emerging diseases A warmer UK climate could see an increase in relatively unknown diseases, explains George Winter A healthy trip to mountain heights: Managing altitude sickness Nurses must be aware of the risks involved for travellers seeking natural highs, writes Catherine Brewer. Guidance about MERS for pilgrims Hajj will begin soon. Travellers are at risk of Middle East Respiratory Syndrome, explains Margaret Umeed Yellow fever: Understanding vaccinations Yellow fever (YF) is an acute, potentially fatal, viral haemorrhagic disease spread by day-biting mosquitoes. It is endemic in tropical areas of Africa and Latin America. Keeping well on cruises Cruise ships are becoming increasingly popular. It is vital for practice nurses to have a good understanding of the health risks faced by these travellers. This article will discuss the most common infectious diseases associated with cruise travel. Yellow fever vaccination changes Carolyn Driver outlines the amendments to international health regulations and the effect on travellers Keeping malaria at bay Avoiding mosquito bites is the frontline defence against malaria. Catherine Brewer describes how travellers can best avoid being bitten Lyme disease: at home as well as abroad Lyme disease is a consideration for those travelling overseas but they are not the only ones at risk, explains Mark Greener. Cholera: advising travellers Hilary Simons advises on risk assessment for global travellers. Travel health: routine and required vaccines Vaccines are an important public health measure and may prompt travellers to attend for pre-travel health advice, write Claire Wong and Hilary Simons.