The crawling of the female worm on the skin around the anal area often produces intense itching causing a person to scratch there, getting the eggs on the hands. Without washing, the hands touch the mouth. Now the eggs are swallowed and hatch in the lower colon where the pinworms mate, and cycle continues. The eggs are usually found on the infected person's pajamas and bed linen. Children can easily infect the entire family through the bathtub, toilet seat, and bedclothes.
The hertz (symbol Hz) is the unit of frequency in the International System of Units (SI) and is defined as one cycle per second. It is named for Heinrich Rudolf Hertz, the first person to provide conclusive proof of the existence of electromagnetic waves.
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