What should you know about the malaria transmission cycle?

During a bite, an infected mosquito can place parasites into the bloodstream. The parasites travel to the liver, multiply, then return to the blood and enter red blood cells. This blood stage is linked with symptoms such as fever, chills and muscle aches.

When another mosquito bites an infected person, it can take up parasite forms that continue developing inside the mosquito. A later bite can then pass the infection onward. The cycle depends on the mosquito, the parasite and human infection; casual contact does not normally continue it.

After travel to an area where malaria occurs, seek prompt medical advice for fever or flu-like illness and describe your destinations and dates. A blood test can help identify infection, while treatment interrupts parasite growth in the body.

For future travel, combine mosquito-bite protection with advice about malaria prophylaxis. A travel health consultation can match prevention steps to your itinerary and medical history.

Call for urgent medical help if fever is accompanied by confusion, a seizure, collapse, breathing difficulty, severe weakness or repeated vomiting. Malaria can become serious, so do not delay assessment while waiting for the cycle to become clearer.

Ask which stage a test detects, whether testing should be repeated and how treatment breaks the cycle. Before travelling, ask how long prevention should be used around the trip and what symptoms should prompt testing after return.