They are incorrect in this belief, though, because much is done to assure that the nation's blood supply is, in fact, safe. One requirement to having a safe blood supply is to have an extensive reserve, because this allows for the option of discarding any blood that is potentially unsafe. The assurance of an ample blood supply begins with the donation process. Most of the people in this country have the capability to donate blood. There are few restrictions and the reason why there are blood shortages is because people don't want to donate as opposed to can't donate.
Most people are afraid of giving blood.
There are many misconceptions about the process of donating blood and receiving transfusions. For example, people believe that there is a danger of contracting diseases, especially AIDS, from the needles used during the process. Actually, people have little to fear about giving blood. Many precautions are taken to assure that the process is safe for the donor, and the blood that is received is safe for the recipient. Before the donor even gets close to the bed or the needle, he first must complete a thorough survey asking about his past and potentially risky behavior.