Can diseases come back if we cease vaccinations?

Expert Solution

Vaccine contains an attenuated or killed form of the disease causing microorganims, which is not capable enough to cause the disease, but ellicit an immune response. In this active response, the body makes antibodies. When there is a reinfection from the same pathogen, the immune response by its memory feature makes the antibodies in no time against the pathogen and removes the microbe.

When the dose of vaccine is ceased before its optimum concentration, then there are chances that the body cannot make enough antibodies that can fight the disease in later stages. Also, no memory could be formed at that time; and hence the disease can come back when the body encounters the same pathogen later in life.

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gladiator answered 2 years ago

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