5.3 Preventing infections

Question 1

How can you prevent infections with hygiene

Answer 1

• Hand washing, before cooking, contact with animal, someone with infectious illness
• Using disinfectant on kitchen work surfaces, reduce number of pathogens
• Raw meat away from food that is eaten uncooked to reduce number of pathogens
• Coughing or sneezing into handkerchief
• Maintaining hygiene of people and agricultural machinery

Question 2

How can isolating someone prevent infection

Answer 2

less likely pathogens will be passed on.
ebola, cholera

Question 3

how can destroying or controlling vectors prevent the spread of infection

Answer 3

• passed on by vectors, carry disease to plants
• if vectors destroyed, spread of disease can be prevented

Question 4

how can vaccine prevent infection

Answer 4

• harmless form of a specific pathogen into your body
• if you come in contact with live pathogen, not become ill, immune system is prepared

Question 5

why does disease spread more easily in highly populated areas

Answer 5

more frequent contact with people who can pass on disease

Question 6

why does disease spread more quickly in areas with poor hygiene

Answer 6

less likely to kill germs and microbes that carry disease, increased chance of drinking untreated water, carry pathogens if not boiled