Parasitic Worms....
Ascaris lumbricoides, the large roundworm of humans. In the foreground is a
pile of Ascaris worms collected from people living in a small village in
the south of India. The worms will mainly have come from children.
Tococara canis. This is a scanning electron microscope picture of the
microscopic juvenile forms of the dog parasite Toxocara canis, which is
common in the UK. The eggs of the parasite are shed in the faeces of dogs
(puppies in particular) and contaminate parks and gardens, where the
infective larvae develop. Humans who injest the eggs by the ingestion of
soil (usually children) become infected and the juvenile worms migrate
through the soft tissues of the body, including the brain and the eyes, for
up to ten years.
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