B3, infection and response

Question 1

is measles a communicable or noncommunicable disease

Answer 1

communicable

Question 2

why do most people who are exposed to tuberculosis bacterium not catch the disease

Answer 2

most peoples’ immune systems can fight off the bacterium before it can cause tuberculosis

Question 3

why would someone with HIV be more likely to catch a communicable disease than someone without HIV

Answer 3

a person with HIV has a weakened immune system this means they would be less able to fight of pathogens

Question 4

where can HPV increase the risk of women developing cancer

Answer 4

cervix

Question 5

how can an allergy be triggered by the immune system

Answer 5

sometimes triggered by a pathogen, the immune system fights off pathogen but a person can develop an allergy in the process

Question 6

what spreads communicable diseases

Answer 6

pathogens

Question 7

4 ways to reduce the spread of pathogens

Answer 7

• clean drinking water
• washing hands before eating
• isolation
• vaccinations

Question 8

3 ways pathogens are spread

Answer 8

• through the air (e.g water droplets, sneezing)
• water (e.g Cholera)
• direct contact