Our immune system is designed to be working round the clock to kick out viruses, bacteria and fungi that we are exposed to. But sometimes, these invaders can get inhaled, rubbed or swallowed into our bodies. Those with a strong immune system can remove it without causing any symptoms. But those with a lesser capacity to respond, such as older people and those with existing conditions can be prone to developing illness.
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Answer:
Our immune system is designed to be working round the clock to kick out viruses, bacteria and fungi that we are exposed to. But sometimes, these invaders can get inhaled, rubbed or swallowed into our bodies. Those with a strong immune system can remove it without causing any symptoms. But those with a lesser capacity to respond, such as older people and those with existing conditions can be prone to developing illness.