What should you know about etiology of malaria?

After entering the bloodstream, the parasite first travels to the liver and then infects red blood cells. As infected cells break down, episodes of fever, chills and sweating can occur. Muscle aches, headache, weakness or nausea may also appear. Symptoms can begin after a delay, so recent travel matters even if you felt well immediately after returning.

Malaria is not spread by ordinary contact such as sharing food or sitting near someone. A mosquito can acquire the parasite by biting an infected person and pass it to another person later. Different parasite species behave differently, and some can cause severe illness quickly.

Tell a clinician about travel to or residence in a malaria-risk area, the dates involved, mosquito bites, and any preventive medicine you took. A blood test can look for parasites, and repeat testing may be needed when suspicion remains high despite an early negative result. Do not self-treat with leftover medicines.

Use insect repellent, long sleeves and screened or air-conditioned rooms while travelling. A travel health consultation before departure can match malaria prophylaxis to the destination, itinerary and your medical history. Prevention tablets do not replace bite protection.

Seek urgent medical assessment for fever or flu-like illness during travel or after returning from a malaria-risk area, especially with confusion, fainting, breathing difficulty, repeated vomiting, yellowing of the skin, dark urine or extreme weakness. Malaria can worsen rapidly, so mention the travel history at the first contact.

Ask which test is appropriate, whether testing needs repeating, which parasite species is suspected, and how to reduce mosquito exposure at home. If you are planning travel, ask when prophylaxis should start, how long it should continue, and what to do after a missed dose.