NBME Form 31 Practice Test

Hookworm infestation is recognized as a prevalent cause of anemia in the developing world due to several interconnected factors. The hookworm, particularly species like Ancylostoma duodenale and Necator americanus, is a parasitic worm that infects humans primarily through contaminated soil.

Once hookworms enter the body, they attach to the intestinal wall and feed on blood. This feeding mechanism can lead to significant blood loss, contributing to iron deficiency anemia, especially in populations where resources for health and nutrition are limited. In many developing countries, poor sanitation, lack of access to clean water, and inadequate health education facilitate the spread of hookworm infections, making it a common health concern.

While other conditions like folic acid deficiency, sickle cell disease, and vitamin B12 deficiency can also cause anemia, they do not have the same widespread impact in developing regions as hookworm does. Folic acid and B12 deficiencies are often associated with malnutrition but are less prevalent compared to the large burden of hookworm infections. Sickle cell disease, while serious, is more prevalent in specific geographic regions and does not represent a universal cause of anemia in the broader population. In contrast, the prevalence and impact of hookworm infections make it a significant and widespread cause