Final answer:
Cold viruses are usually transmitted through direct contact and droplet transmission. Sneezing or coughing near someone can release droplets containing thousands of pathogens, and cold viruses can also be transmitted by touching the eyes or nose with hands that have picked up the viruses. Handwashing is an important preventive measure.
Step-by-step explanation:
Cold viruses are usually transmitted through direct contact and droplet transmission. They can be spread when someone sneezes or coughs near you, because the droplets released during sneezing or coughing can contain thousands of pathogens. Additionally, cold viruses can be transmitted by hands picking up the viruses and touching your eyes or nose.
It is important to wash your hands often, especially after sneezing, coughing, or blowing your nose, to prevent the spread of cold viruses.