Infection of the respiratory system by virus may develop into symptoms of a common cold.
When a germ or virus penetrates your respiratory system. For instance, you may shake hands with a sick individual or contact a contaminated surface. Next, you touch your eyes, nose, or mouth. Your body becomes infected by the bacteria on your hands.
When germs like bacteria or virus enter the body, multiply, and trigger a response in the body, an infection results. An infection has to happen in three ways: Source: Habitats of infectious (germ) agents (e.g., sinks, surfaces, human skin) A person who is susceptible and who has a point of entry for germs.
A virus that inflames the membranes lining the nose and throat is what gives people colds. It is relatively simple to share the common cold to others. It frequently spreads by airborne droplets that the ill person coughs or sneezes into. Another individual then inhales the droplets.
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