1. The “cold viruses” are rapidly spread from person to person. The greatest source of spread is: A) Fingers B) Sneezing C) Plastic toys D) Eye mucosa Ans: A Feedback: Cold viruses have been found to survive for more than 5 hours on the skin and hard surfaces, such as plastic countertops. Aerosol spread of colds through coughing and sneezing is much less important than the spread by fingers picking up the virus from contaminated surfaces and carrying it to the nasal membranes and ey...