Home > Lifestyle > How to travel safely > Conditions of concern Conditions of concern All sections in Travel Health » Conditions of concern » Modes of Travel » Travel diet and fitness » General Travel Advice » Travel Health News Why is altitude sickness so dangerous? Following Gugu Zulu's death, altitude sickness is in the spotlight, highlighting the fact that this illness is more serious than most of us realise. Quiz Wilderness Survival Skills » Ask EnviroHealth Expert » Assess Test your sun sense » Join Heart to Heart » 8 healthy snacks to fill you Weird things found in airport security How ISIS has limited where you can go on holiday With the recent terrorist attacks taking place just ahead of the holiday season, some of your favourite vacation destinations may now be a no-go zone. Tick bite fever Tick bite fever is caused by a bacterial infection transmitted by ticks. Malaria kills, even in South Africa For a nation that enjoys spending time outdoors and trips to the bushveld, many South Africans are lax about protecting themselves from malaria, says Health24's Travel Expert. Malaria: an African story In 2007 Bill and Melinda Gates announced that malaria would be eradicated by 2015. Doctors battling the disease on the ground responded: “One day. But not in our lifetimes.” Parasites Parasites are organisms which live in or on another organism and harm that organism. Malaria Malaria is an infection of red blood cells caused by a single-celled parasite. SARS (Severe Acute Respiratory Syndrome) SARS (Severe Acute Respiratory Syndrome) load more articles advertisement Live healthier Lifestyle » E-cigarettes: Here are five things to know E-cigarettes have become hugely popular in the past decade, but a rash of vaping-linked deaths and illnesses in the US is feeding caution about a product that's already banned in some places. Allergy » Ditch the itch: Researchers find new drug to fight hives A new drug works by targeting an immune system antibody called immunoglobulin E, which is responsible for the allergic reaction that causes hives.