The hookworms, Ancylostoma and Necator, draw a plug of intestinal mucosa into their buccal capsule.

The tissue is broken down and blood is rapidly pumped through the intestine of the nematode so that most of it goes undigested.

[3] This limits their distribution to warm, wet climates such as the tropics.

The most appropriate control measures for hookworms and ascariasis are to concentrate chemotherapy on heavily infected individuals (taking advantage of overdispersion) and to improve sanitation to reduce the rate of transmission.

You can help Wikipedia by expanding it.This parasitic animal-related article is a stub.