The infection is most common in tropical areas where sanitation is poor. Hookworms thrive in warm, moist places. Two species of hookworm cause infection in people: Ancylostoma duodenale.
Where are hookworms most common?
Hookworm thrives in regions of extreme poverty with poor sanitation and affects some 740 million people worldwide. Developing nations with warm, moist climates, in regions like South America, South Asia and Southeast Asia, are most susceptible to the worm.
Where do hookworm infections occur today?
According to the Centers for Disease Control and Prevention, hookworm infections occur in an estimated 576 to 740 million people worldwide. It mainly affects people in developing nations in the tropics and subtropics due to poor sanitation. These infections rarely occur in the United States.
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