What's Eating You? Hookworm and Cutaneous Larva Migrans

Area of Science:

• Parasitology
• Infectious Diseases
• Global Health

Background:

• Hookworm infection poses a substantial global health and economic burden.
• A resurgence of hookworm infections is occurring in developed nations.
• Hookworms infect humans (Necator americanus, Ancylostoma duodenale) or animals, with zoonotic species causing cutaneous larva migrans (CLM).

Purpose of the Study:

• To review the epidemiology, clinical manifestations, and pathology of hookworm infections.
• To highlight the re-emergence of hookworms in developed countries.
• To differentiate human hookworm infections from zoonotic hookworm infections like CLM.

Main Methods:

• Literature review of hookworm epidemiology and clinical presentations.
• Analysis of host-parasite interactions for human and zoonotic hookworm species.
• Review of diagnostic and pathognomonic features of hookworm-related diseases.

Main Results:

• Human hookworms cause ground itch, eosinophilic pneumonitis, and iron deficiency anemia.
• Zoonotic hookworms, such as Ancylostoma caninum, cause cutaneous larva migrans (CLM) when they penetrate human skin but cannot complete their life cycle.
• Hookworm infections present a significant, re-emerging global health challenge.

Conclusions:

• Hookworm infections remain a critical global health concern with diverse clinical presentations.
• Understanding the distinct pathologies of human and zoonotic hookworm infections is crucial for diagnosis and management.
• Public health strategies are needed to address the resurgence of hookworms, particularly in developed nations.