How Are Pathogens Spread

Question 1

Direct contact

Answer 1

This can be sexual contact during intercourse or non-sexual contact, like shaking hands.

Question 2

Water

Answer 2

Dirty water can transmit many diseases, such as the cholera bacterium.

Question 3

Air

Answer 3

When a person who is infected by the common cold sneezes, they can spray thousands of tiny droplets containing virus particles to infect others,

Question 4

Unhygienic food preparation

Answer 4

Undercooked or reheated food can cause bacterial diseases like escherichia coli which is a cause of food poisoning

Question 5

Vector

Answer 5

Any organism that can spread a disease is called a vector. Many famers think tuberculosis in their cattle can be spread by badgers.