What Is Malaria?

Malaria is a disease caused by a parasite that is transmitted by the bite of an infected Anopheles mosquito. These mosquitoes are present in the tropics and subtropics in almost all countries.

Malaria is the most deadly of all tropical parasitic diseases. After the parasites enter the body by a mosquito bite, they disappear from the circulating blood within an hour and gather in the liver. After several days, infected red blood cells (RBCs) emerge from the liver and infect other RBCs.

For more information about malaria, please visit the CDC site.

What are the risks of acquiring malaria?

The risk of acquiring malaria depends on:

  • Travelers' destination
  • Duration of travel
  • Place where the traveler will spend the evenings and nights. (Anopheles mosquitoes bite most often during nighttime hours from dusk to dawn.)

Clinical Trials

Clinical trials are research studies that evaluate a new medical approach, device, drug, or other treatment. As a Stanford Hospital & Clinics patient, you have access to the latest, advanced clinical trials.

Open trials refer to studies currently accepting participants. Closed trials are not currently enrolling, but may open in the future.

Our Clinics

Our treatment programs are designed for you. Visit our clinics to make an appointment.