Hookworm eggs in faecal matter

The image shows the eggs of Hookworm as observed through foldscope.
Hookworms are nematodes that infect domestic and wild canids and felids. Dogs become infected with ensheathed third stage larvae via the percutaneous (skin), oral or trans-mammary routes (Ancylostoma caninum only). All animal hookworms are zoonotic and may cause cutaneous larva migrans in people. Penetration of the ensheathed larvae produce a mild, self-limiting pruritic rash called ‘ground itch’. A. braziliense may produce ‘creeping eruptions’, highly pruritic mobile linear or serpent-like dermal lesions. In Asia and Oceania, dogs act as reservoirs for A. ceylanicum, which produces patent (egg-positive) symptomatic hookworm disease in humans. Non-patent immature A. caninum worms may cause eosinophilic enteritis in humans.

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