Becoming exposed to air infected with a microbe does the necessary mean developing noticeable disease. Explain.
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Hey,
Our body possess many white blood cells which are part of our immunity and they help in fighting of diseases. Every disease has a particular incubation period.
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An infectious microbes is able to cause a disease only if immune system of infected person is not able to provide proper defence against it. When a person has a strong immune system or had been vaccinated against pathogen, then the intensity of pathogenic attack is low. Thus, the person will not get the disease despite being exposed to it infected person.
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