At a glance
Malaria is an infection caused by Plasmodium parasites.
Fever, chills, headache, and fatigue are common, but symptoms alone cannot confirm malaria.
Disease Atlas / Disease detail
An evidence-led guide to parasite species, transmission, urgent diagnosis, and treatment tailored to severity, resistance, and relapse risk.
malaria
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Public revision · 571fa36e74fb
A structured guide for understanding the disease and preparing for clinical conversations.
Malaria is an infection caused by Plasmodium parasites.
Fever, chills, headache, and fatigue are common, but symptoms alone cannot confirm malaria.
It is transmitted mainly through bites of infected female Anopheles mosquitoes.
Plasmodium falciparum malaria can progress rapidly to severe disease, making diagnostic and treatment delay dangerous.
Young children, pregnant people, nonimmune travelers, and immunocompromised people have higher risk of severe disease.
Suspected cases require prompt parasite-based testing by blood smear or rapid diagnostic test.
Blood smears confirm infection, assess species and parasitemia, and monitor treatment response.
Treatment is selected by parasite species, regional resistance, severity, age or weight, and pregnancy status.
Clinical status and parasitemia are reassessed after treatment to evaluate response and possible failure.
Clinical discussion should distinguish travel or exposure, onset, species and parasitemia, severity criteria, and treatment and follow-up plans.
This material is for disease education and is not a personal diagnosis or treatment instruction.
A trial registry status does not establish efficacy or regulatory approval.
MedlinePlus · GOVERNMENT SUMMARY
World Health Organization · PUBLIC HEALTH GUIDANCE
Centers for Disease Control and Prevention · CLINICAL GUIDANCE
Centers for Disease Control and Prevention · CLINICAL GUIDANCE