Microbiology: A Systems Approach 4th Edition

Published by McGraw-Hill Education
ISBN 10: 0073402435
ISBN 13: 978-0-07340-243-7

Chapter 21 - Infectious Diseases Affecting the Respiratory System - Multiple-Choice and True-False Questions - Bloom's Levels 1 and 2: Remember and Understand - Page 667: 1

Answer

d. both (a) and (b)

Work Step by Step

There are numerous strains of rhinovirus and corona virus, and they are the most common cause of the cold. Thus, the correct answer is option d.
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