Question

QUESTION 38 A pathogenic bacterium enters the body. Will it cause an infectious disease? Yes. That is why it is termed a pathogen. Yes, if the person is not immediately treated with antibiotics. No. It depends on the number of bacteria that enter the body and the quality of the person's immune defense Yes, if the person has not been immunized against that bacterium.

Answer 1

Bacteria are present everywhere around the environment and human body. Pathogenic bacteria are entered into human body every time through air (using dust particles), water, human touch etc. But every time it is not harmful for human because a bacterium does to have any capability to cause infection. Every pathogenic bacteria have a infection dose and this dose is a specific number of bacteria which have infection capability if they can enter into the body. A specific number is required to destroy human immune defense and infect human body. Human body also has defense system which protect from pathogen. If a human defense system is hard or good quality, then pathogen unable to cause disease in his body. So, here option third is correct answer against the above question.

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