Several Vaccines Are Combination Vaccines and Are Used to Vaccinate

question 37

Multiple Choice

Several vaccines are combination vaccines and are used to vaccinate people against two or more pathogens.One example of a combination vaccine is the TDaP vaccine (tetanus, diphtheria, and pertussis) .How does a combination vaccine develop immunologic memory to more than one pathogen?

• A)Allergic reactions are less common with combination vaccines than with single-antigen vaccines.
• B)Combination vaccines develop immunity against very similar or the same (broad spectrum) antigens.
• C)Combination vaccines are more economical to produce than single vaccines.
• D)Each antigen target included in the combination vaccine must be different enough so that the immune system can recognize the target antigen on the pathogen cell.
• E)Similar antigens can be chemically modified so that the immune system will recognize each antigen as unique.

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Definitions:

N-95 Respirator Mask

A respiratory protective device designed to achieve a very close facial fit and very efficient filtration of airborne particles, known for its capability to filter out at least 95% of airborne particulates.

Wound Culture

A diagnostic test involving the collection and cultivation of tissue, fluid, or discharge from a wound to identify the presence of pathogens.

Resistant to Antibiotics

The ability of bacteria or other microbes to withstand the effects of an antibiotic to which they were once sensitive.

Bacterial Spores

Dormant, highly resistant forms of bacteria that can survive in harsh conditions and can germinate into active bacteria under favorable conditions.