Lewis Smith Lake (or Smith Lake) is located in North-Central Alabama about 20 miles northwest of Birmingham in state of Alabama (U.S.) counties of Cullman, Walker and Winston. The 300-foot high dam, completed in 1961 by Alabama Power Company, impounds the Sipsey Fork of the Black Warrior River to form the lake.
Because the malaria species Plasmodium vivax normally uses DARC to enter red blood cells, people who carry this mutation are resistant to one strain of malaria. This particular strain of malaria is not a major killer in Africa today, but was likely more threatening in the past. Biologists reason that the DARC mutant arose in Africa through random mutation and began to spread through the process of natural selection.
Malaria is an infectious disease that is caused by a parasite called Plasmodium. You get it from the bite of a type of female mosquito that carries the parasite. Malaria is an infection that can cause serious illness and may be life-threatening.You get malaria from the bite of a type of infected female mosquito called Anopheles.They carry a parasite called Plasmodium, which is carried to your liver and then infects your red blood cells.here are four main types of Plasmodium parasite that infect humans. These are Plasmodium falciparum, Plasmodium vivax, Plasmodium ovale and Plasmodium malariae. Of these, Plasmodium falciparum is the most severe form and causes most deaths from malaria.