Infections such as the cold and flu are a part of life and despite the annoyance and discomfort of becoming ill, these infections do have an essential role in the development of our immune system. How we respond to infection, that is, how well or how badly we cope or bounce back, depends on a variety of factors including the strength of the immune system, the effectiveness of the barrier mechanisms (skin, nose, mouth, digestive tract), the virulence of the organism and lastly the vitality of the individual.

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