It’s still unclear why some races get SCD more than other races. In America, 1 out of 500 African-American babies are born with sickle cell disease. The rest of the world also has similar findings. According to many respected scientists, the statistics from their studies show that those from the following geographical areas are more likely to have this disease than others from other areas: Africa, India, the Caribbean, the Middle East, and the Mediterranean. However, scientists that study this occurrence have come up with a reason to explain why those areas have more cases of SCD than others: malaria. It’s been proven that mosquitoes carry the disease malaria and pass it to humans through blood, but there’s a hidden catch. Science is now proving that malaria can be prevented to an extent, and that’s by having the gene for SCD. Via the process of natural selection, those with the gene for SCD survive, and some that don’t have the trait and were lucky enough not to get malaria also survived. As the generations move forward, those that survive through their lives long enough reproduce with others that have survived as well. Among those are a large number of humans that either carry the gene, carry two copies of the gene, or don’t have it. Eventually, more and more children in those aforementioned areas are born with the trait or the disease and pass it on to their children.