What should you know about the malaria mosquito life cycle?

Mosquitoes develop through egg, larval, pupal, and adult stages, with immature stages living in water. Only an infected female mosquito transmits malaria during a blood meal. After parasites develop inside the mosquito, another bite can pass them into a person's bloodstream. The mosquito may not look different from other mosquitoes, so appearance cannot identify risk.

Inside the person, parasites first travel through the liver and then infect red blood cells. This process can lead to fever, chills, sweating, headache, tiredness, and muscle aches. Symptoms after travel deserve assessment because the mosquito life cycle does not make the illness easy to recognise from the bite alone.

Reduce contact with adult mosquitoes by using repellent, covering exposed skin, and sleeping beneath a well-fitted mosquito net. Remove or avoid standing water around living areas when practical, although household measures cannot replace personal protection in a risk area. Before travel, arrange a travel health consultation and ask whether malaria prophylaxis is suitable for the destination and your circumstances.

Contact a clinician promptly for fever or chills during or after travel in a malaria area. Seek urgent help for confusion, severe weakness, breathing problems, inability to keep fluids down, or fainting. Explain where you travelled even if symptoms seem mild and the bite was not noticed. A blood test may be used to investigate malaria.

Which parts of my itinerary carry malaria risk? How should I combine a net, repellent, and clothing? Would malaria prophylaxis be appropriate, and what symptoms after returning should lead to a blood test?