Sitting in the Blood Donation Facility,you Are Filling Out a Lengthy

Sitting in the blood donation facility,you are filling out a lengthy information form.The form asks various questions about your history and what diseases and problems you have had during your lifetime.You are mystified when you come upon the question about whether you have ever had malaria or visted a country that had malaria.Why are they interested in this?

A) Blood donation facilities test for a huge variety of pathogens and this is just one of those tested for.The information given by the prospective donor ahead of time saves the staff time in testing the blood.
B) Some malarial parasites can persist in the liver,and,as a result,could be in your blood donation and be transferred to a recipient.
C) Some blood recipients are very suscetible to malaria,and some are not.If you have malaria,the staff would rather give your blood to specific kinds of recipients that need blood.
D) If you are infected with malaria,you are probably also infected with HIV.That in itself would worry the blood donation staff.