Question

Describe and explain how one person with a cold catching a busy train to work could mean that by the next day 100s of people feel ill.

Answer 1

Due to airborne movement of the infection.

Step-by-step explanation:

Due to a tight space between people, there is a higher chance of the airborne movement hitting more people, often due to a cough or sneeze. Also due to how the infection can stay on a surface for a certain amount of time.

I'm not entirely sure about the last point, please clarify with someone who knows the answer but I hope this helped.