A 30-year-old Caucasian male is at your office inquiring about what type of immunizations he will need regarding his trip to Africa next year for a missionary trip. The topic of Malaria comes up and he is concerned because he read that no antimalarial drug is 100% protective against being infected. Out of the following choices, what person would have a decreased risk of an infection by a malarial parasite?

Question

Quizplus · Accepted Answer

Normal adult hemoglobin is designated hemoglobin A (HbA), whereas adult sickle hemoglobin is designated as hemoglobin S (HbS). Hemoglobin S is correlated with lower rates of mortality among carriers who are of African and Mediterranean descent, because the HbS allele decreases the risk of infection by malarial parasites endemic in those areas.

A 30-Year-Old Caucasian Male Is at Your Office Inquiring About