b6.3.3 preventing the spread of communicable diseases Flashcards
1
Q
how can you prevent the spread of communicable diseases
A
covering your mouth when you cough or sneeze
not touching infected people or objects
using protection during sexual intercourse
not sharing needles
2
Q
how do farmers prevent the spread of diseases in plants and animals
A
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
3
Q
how can farmers identify disease in animals
A
organism’s appearance
identifying pathogen by its DNA or antigens