How malaria is transmitted to humans

The parasite develops in a mosquito after the insect has fed on an infected person. During a later bite, parasites enter another person's blood and travel to the liver before multiplying in red blood cells. Malaria does not spread through ordinary contact, sharing food, or breathing near someone. Rare transmission can occur through infected blood, contaminated needles, or from a pregnant person to a baby, so medical teams consider these routes when assessing risk.

Illness may begin with fever, chills, headache, or muscle aches. A person can become seriously unwell, particularly after travel to a malaria area, even if symptoms first seem like a common infection.

Before travel, arrange a travel health consultation early enough to discuss destination-specific prevention. Malaria prophylaxis may be advised, but tablets do not replace mosquito precautions. Use an effective insect repellent, wear clothing that covers skin, sleep in a screened or netted space, and reduce exposure from dusk through dawn when many malaria-carrying mosquitoes feed.

After returning, tell a clinician about your travel history if fever, chills, or muscle aches develop. A blood test can help investigate malaria, and prompt treatment matters.

Seek urgent medical assessment for fever or chills during travel in a malaria area or after returning from one. Go promptly if confusion, breathing difficulty, repeated vomiting, fainting, severe weakness, or unusual drowsiness develops. Do not wait for symptoms to follow a predictable pattern, and do not assume that taking prophylaxis rules malaria out.

Which malaria prevention approach fits my destination, medicines, pregnancy status, and health conditions? How long should I continue it after travel? Which symptoms should trigger testing, and where can I obtain urgent assessment if fever begins?