Development of New Vaccines Has Slowed in Recent Decades

question 27

Multiple Choice

Development of new vaccines has slowed in recent decades. This is due to

• A) the ineffectiveness of vaccines against disease.
• B) the availability of vaccines against nearly all serious diseases.
• C) the high cost of development.
• D) the high level of risk with immunization.
• E) a lack of need with modern medical treatments.

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Definitions:

Bilirubin

A yellow pigment that is a byproduct of the breakdown of red blood cells, and its levels are measured to assess liver function.

Erythropoiesis

The process through which new red blood cells are produced in the bone marrow.

Jaundice

A medical condition characterized by yellowing of the skin and the whites of the eyes, caused by the accumulation of bilirubin in the blood.

Eosinophil Count

A measure of the number of eosinophils, a type of white blood cell, in the blood, often used to diagnose allergic reactions or parasitic infections.