Before each flu season, you get a flu shot, which consists of a vaccine against several strains of the influenza virus. This year, you get “the flu” anyway. What happened? (There are at least three explanations.)

Before each flu season, you get a flu shot, which consists of a vaccine against several strains of the influenza virus. This year, you get “the flu” anyway. What happened? (There are at least three explanations.)

Body Structures & Functions Updated

13th Edition

ISBN:9780357191606

Author:Scott

Publisher:Scott

Chapter15: The Lymphatic And Immune Systems

Section: Chapter Questions

Problem 2ATC

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Concept explainers

Viral Infections

Viruses are abundantly found, minute entities that have genetic material enclosed within a protein coat. The proteinaceous material enclosing the genetic material of the virus is called a capsid. The genetic material could be either DNA (deoxyribonucleic acid) or RNA (ribonucleic acid). A virus is too minute to be looked at with naked eyes and therefore visualized with the help of a microscope. They are acellular entities that require a host for processes, such as replication, transcription, translation and multiplication. Plants, animals, and bacteria act as host wherein the virus reproduce. Viruses cannot multiply outside the host's body and thus are considered nonliving outside the host body.

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another friend you said that even though she had the flu shot last year she got terribly sick with the stomach flu over Thanksgiving break and missed most of her vacation. what is your explanation for this?
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