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159 OoBM - vo SCI-201 -Page5.1. X 6.1 Introduction|C SCI-201-Page6.c & | Chat Thread a + 0 Cc 23 webtexts.com/courses/85310/traditional_book/chi 4% & (4) : Comm ITE RC 10) Influenza, the virus responsible for the flu, is unusual because it can affect both the upper and lower respiratory tracts. Appearing in seasonal waves, the flu can be deadly for the very young and the elderly. It kills tens of thousands of Americans every year. However, a yearly vaccine is widely available. COVID-19 can also affect both the upper and lower respiratory tracts. Symptoms include fever, coughing, shortness of breath, and a loss of taste and smell. Most people who contract the virus will develop only mild symptoms, but a small percentage have a much more extreme and dangerous reaction. Since its appearance in 2019, researchers have developed several vaccines for this virus and continue to study treatment options. MULTIPLE-CHOICE QUESTION What do URT and LRT infections have in common? ) They are infections that affect your respiratory tract. () They are only caused by bacteria. () They are only caused by viruses. As you will see on the next page, understanding the specifics of infections, like those caused by a respiratory virus, can help us prevent the spread of disease. Reset all multiple-choice questions on this page On this page: 3 of 4 attempted (75%) | 2 of 4 correct (50%) | | O ad \">