Willie T. Ong

Worms: aliens in human bodies

In the Philippines, there are three worms that cause the most health problems: roundworms (Ascaris lumbricoides), whipworms (Trichuris trichiura) and hookworms (Necator americanus and Ancylostoma duodenale). These three have been a burden to humanity for centuries. They are called soil-transmitted helminthiasis and are found in the soil. Helminths. Helminths are really parasitic worms (like aliens) …

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