Malaria is a parasite disease. Its symptoms include fever, chills,sweats, headache, body aches, nausea and vomiting. The symptoms may sometimes recur every 48 to 72 hours, depending on the type of parasite involve and how long the person has the disease.
Malaria parasites- protozoans called Plasmodia are introduced into the human bloodstream through the bite of a female Anopheles mosquito.
The parasites find their way into the infected person's liver cells, where the parasite multiply.
When a liver cell ruptures, it releases the parasites, which then invade the infected person's red blood cells. There, the parasites continue to multiply.
When a red blood cell ruptures, which invade still more red blood cells.
The cycle of red blood cell invasion and rupture continues. The infected person typically manifests symptoms of malaria each time the red blood cells rupture. A human can get the malaria parasite from an infected mosquito. Conversely, a noninflected mosquito can get the malaria parasite from biting an infected human. Then the infected mosquito can pass the parasite to another human.