Common Colds Are Upper Respiratory Tract Infections

question 16

Multiple Choice

Common colds are upper respiratory tract infections.Why are vaccinations against the common cold not practical?

• A)There are so many different strains of viruses that cause colds it would be impossible to develop a vaccine against all of them.
• B)Vaccines are very costly to develop.
• C)Vaccines would not work against the common cold because it is caused by a bacterial infection.
• D)Colds are caused by viruses that cannot be prevented by vaccinations.
• E)Vaccinations do not work in the upper respiratory tract.

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