Swimmer's itch is caused by a very tiny parasite. You can only see it with a microscope. It gets into the skin of humans by mistake. The rash and itching are the body's allergic reaction to parasites ...

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COVID-19 is spread from person to person. The virus spreads when respiratory droplets are produced when a person coughs, sneezes, shouts or sings. The infected droplets can then be inhaled by a nearby ...