Malaria is a mosquito-borne infectious disease of humans and other animals caused by parasitic protozoans (a type of single cell microorganism) of the Plasmodium type. Malaria causes symptoms that typically include fever, fatigue, vomiting and headaches. In severe cases it can cause yellow skin, seizures, coma or death. These symptoms usually begin ten to fifteen days after being bitten. In those who have not been appropriately treated disease may recur months later. In those who have recently survived an infection, re-infection typically causes milder symptoms. This partial resistance disappears over months to years if there is no ongoing exposure to malaria. Commonly, the disease is transmitted by the bite of an infected female Anopheles mosquito... The World Health Organization (WHO) estimates that in 2012, there were 207 million cases of malaria. http://en.wikipedia.org/wiki/Malaria
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