b6.3.3 preventing the spread of communicable diseases

Question 1

how can you prevent the spread of communicable diseases

Answer 1

covering your mouth when you cough or sneeze
not touching infected people or objects
using protection during sexual intercourse
not sharing needles

Question 2

how do farmers prevent the spread of diseases in plants and animals

Answer 2

diseased plants are usually burnt
animals may be treated using drugs
sometimes the whole herd needs to be slaughtered
chemical dips are installed on farms to kill pathogens on footwear
spray plants with fungicides

Question 3

how can farmers identify disease in animals

Answer 3

organism’s appearance

identifying pathogen by its DNA or antigens