lecture 6

Question 1

what is infection

Answer 1

The multiplication/colonisation of a pathogenic microbe on/in a susceptible host with associated dysfunction/damage.

Question 2

what cause infection

Answer 2

pathogenic microbes

• The agent must be shown to be present in every case of the disease by isolation in pure culture
• The agent must not be found in cases of other disease
• Once isolated, the agent must be capable of reproducing the disease in experimental animals, and must be recovered from the experimental disease produced.

Question 3

Why do particular individuals get particular infections

Answer 3

• Weakened immune systems
• Poor nutrition
• Poor living circumstances
• No access to health care (vaccinations)
• Genetic predisposition
• Lifestyle (e.g. STDs)

Question 4

What influences the outcome of infection?

Answer 4

The host’s immune system, the affected body systems and the drugs used.