Optimal protection against mosquito bites around the clock, even in cities (during the day against Chikungunya, Dengue, Zika and other viruses, at dusk and at night against malaria). In case of fever, take paracetamol preparations and make sure to drink enough fluids. Do not take medicines containing acetylsalicylic acid (e.g. Aspirin®), as these increase the risk of bleeding. In case of fever, malaria should always be ruled out by a blood test.