Yearly Vaccination of Humans for Influenza Viruses Is Necessary Because

question 13

Multiple Choice

Yearly vaccination of humans for influenza viruses is necessary because

• A) of an increase in immunodeficiency diseases.
• B) flu can generate anaphylactic shock.
• C) surviving the flu one year exhausts the immune system to nonresponsiveness the second year.
• D) rapid mutation in flu viruses alters the surface proteins in infected host cells.
• E) flu leads to autoimmune disorders.

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Definitions:

Blood Vessels

Tubular structures that carry blood throughout the body, including arteries, veins, and capillaries.

Edema

Swelling caused by excess fluid trapped in the body's tissues.

Osmotic Balance

The regulation of water and solute concentrations across membranes to stabilize internal conditions of an organism or cell.

Inflammation

The reaction of the body to harm or disease, marked by inflammation, heat, enlargement, and discomfort.