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.” Lyme disease Lyme disease is an infection caused by Borrelia burgdorferi. 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. Altitude sickness Altitude sickness, also called mountain sickness, is an illness that occurs when the body is unable to adjust to high elevations. Symptoms of mountain sickness range from a mild headache and fatigue to a life-threatening build-up of fluid in the lungs or brain. SARS (Severe Acute Respiratory Syndrome) SARS (Severe Acute Respiratory Syndrome) load more articles advertisement From our sponsors Sun protection for all children Understanding your sunscreen The science behind cosmeceuticals Do you know these 5 facts about skincare? Live healthier The debate continues » Working out in the concrete jungle 7 top butt exercises for guys 10 things pole dancing can do for you The running vs. walking debate There are many different theories when it comes to the running vs. walking for health and weight loss. Veganism a crime? » Running the Comrades Marathon on a vegan diet Are vegans unnatural beasts? Can a vegan be really healthy? Should it be a crime to raise a baby on vegan food? After a number of cases of malnourishment in Italy, it may become a crime to feed children under 16 a vegan diet.