How is malaria different in travellers?

Malaria is spread by infected mosquitoes in particular regions. A traveller may lack the partial immunity that can develop after repeated exposure, so illness may progress quickly and may be severe. Symptoms can begin during the trip or after returning home.

Fever is the key warning symptom, with chills, sweats, headache, body aches, unusual tiredness, nausea or diarrhoea also possible. Symptoms can resemble flu, so the travel history matters even when the illness seems mild.

Before travel, check whether your destination has malaria risk and arrange advice about mosquito protection and preventive medicine. Use insect repellent, cover exposed skin, sleep under suitable netting or in screened rooms, and follow the plan prescribed for your itinerary.

After travel, tell any clinician about the countries visited, dates of travel, rural or nighttime exposure, and any prevention used. Do not wait for symptoms to become severe, and do not rely on a home remedy or self-treatment to exclude malaria.

Get urgent medical assessment for any fever, chills or flu-like illness during travel or after leaving a malaria-risk area. Tell the service immediately that you have travelled, because malaria testing and treatment are time-sensitive.

Go to emergency care for confusion, fainting, breathing difficulty, repeated vomiting, seizures, extreme weakness or yellowing of the skin. A previous course of preventive tablets does not rule malaria out.

Ask whether your destination and activities created malaria exposure, which tests are needed, and whether repeat testing is required if the first result is negative but fever continues. Bring your itinerary, prevention medicines and symptom timeline.