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 eyes. The fingers are the greatest source of spread, and the nasal mucosa and conjunctival surface of the eyes are the most common portals of entry of the virus.
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