Final answer:
Parasitic infections, notably caused by Plasmodium leading to malaria, are a major cause of iron-deficiency anemia in various regions worldwide. Treatment with antimalarial drugs and mosquito control are key in combating this disease.
Step-by-step explanation:
Parasitic infections are a primary cause of iron-deficiency anemia in many regions of the globe. Parasites such as the protozoa Plasmodium, which causes malaria, infect and destroy human red blood cells. This can lead to severe anemia, among other serious health issues. Malaria, a significant disease in many parts of the world, particularly tropical and subtropical regions, is transmitted by Anopheles mosquitoes. The infected red blood cells lead to symptoms such as organ damage, blood vessel necrosis, and if untreated, can result in death. Effective malaria treatment is available through various antimalarial drugs, and prevention strategies include vector control to manage the mosquito population.