Question 1

A vaccine is available to prevent infection by

Accepted Answer

A) influenzA. 
B) rhinovirus. 
C) Epstein-Barr. 
D) hepatitis C. 
A) influenzA. 
B) rhinovirus. 
C) Epstein-Barr. 
D) hepatitis C. A

Question 2

Protozoa are associated with all of the following illnesses EXCEPT

Accepted Answer

A) giardiasis. 
B) amoebic dysentery. 
C) histoplasmosis. 
D) malaria. 
A) giardiasis. 
B) amoebic dysentery. 
C) histoplasmosis. 
D) malaria. C

Question 3

Tears,saliva,and vaginal secretions are rich in ______ and other proteins that break down and destroy many microorganisms.

Accepted Answer

A) histamines 
B) enzymes 
C) macrophages 
D) lymphocytes 
A) histamines 
B) enzymes 
C) macrophages 
D) lymphocytes B

Question 4

West Nile virus and hantavirus infections primarily involve transmission by vectors rather than person-to-person spread.

Accepted Answer

A) True 
 B)False

Question 5

The most effective way of preventing the flu in the winter is by protecting your body from cold temperatures.

Accepted Answer

A) True 
 B)False

Question 6

A vaccine is available for a common cause of pneumonia.

Accepted Answer

A) True 
 B)False

Question 7

White blood cells that directly destroy virus-infected and cancerous cells are ______ cells.

Accepted Answer

A) helper T 
B) suppressor T 
C) natural killer 
D) dendritic 
A) helper T 
B) suppressor T 
C) natural killer 
D) dendritic

Question 8

Most ulcers are caused by

Accepted Answer

A) tick-borne rickettsias. 
B) Helicobacter pylori infection. 
C) overconsumption of spicy food. 
D) high levels of stress. 
A) tick-borne rickettsias. 
B) Helicobacter pylori infection. 
C) overconsumption of spicy food. 
D) high levels of stress.

Question 9

Streptococcus and staphylococcus are examples of

Accepted Answer

A) fungi. 
B) bacteria. 
C) viruses. 
D) parasites. 
A) fungi. 
B) bacteria. 
C) viruses. 
D) parasites.

Question 10

One of the best ways to break the chain of infection is to

Accepted Answer

A) wash your hands frequently. 
B) avoid disinfectant agents when cleaning your house. 
C) get boosters for immunizations 6 months early. 
D) drink only fluoridated water. 
A) wash your hands frequently. 
B) avoid disinfectant agents when cleaning your house. 
C) get boosters for immunizations 6 months early. 
D) drink only fluoridated water.

Question 11

Yellowing of the skin and whites of the eyes associated with hepatitis is called

Accepted Answer

A) hemorrhage. 
B) toxic shock. 
C) jaundice. 
D) impetigo. 
A) hemorrhage. 
B) toxic shock. 
C) jaundice. 
D) impetigo.

Question 12

The use of over-the-counter antihistamines is a form of immunotherapy.

Accepted Answer

A) True 
 B)False

Question 13

The largest organisms that can enter the body to cause infection are

Accepted Answer

A) bacteriA. 
B) parasitic worms. 
C) viruses. 
D) protozoa. 
A) bacteriA. 
B) parasitic worms. 
C) viruses. 
D) protozoa.

Question 14

Rabies is most often transmitted by

Accepted Answer

A) animal bites. 
B) contaminated food. 
C) blood transfusions. 
D) hepatitis infection. 
A) animal bites. 
B) contaminated food. 
C) blood transfusions. 
D) hepatitis infection.

Question 15

Antibodies are produced by macrophages.

Accepted Answer

A) True 
 B)False

Question 16

People who fail to finish a prescription of antibiotics contribute to the development of antibiotic-resistant strains of bacteria.

Accepted Answer

A) True 
 B)False

Question 17

Define "vaccine," and describe how immunization can help prevent infection.List at least three immunizations available in the United States.

Accepted Answer

The answer of Define "vaccine," and describe how immunization can...

Question 18

Immunization is based on the

Accepted Answer

A) body's ability to remember an encounter with a specific antigen. 
B) body's ability to tell a harmful pathogen from a harmless one. 
C) introduction of a pathogen into the body to stimulate antigens. 
D) introduction of helper T cells into the body. 
A) body's ability to remember an encounter with a specific antigen. 
B) body's ability to tell a harmful pathogen from a harmless one. 
C) introduction of a pathogen into the body to stimulate antigens. 
D) introduction of helper T cells into the body.

Question 19

Rocky Mountain spotted fever and typhus are caused by the rickettsias bacterium.

Accepted Answer

A) True 
 B)False

Question 20

Varicella-zoster virus causes infectious mononucleosis.

Accepted Answer

A) True 
 B)False

Exam 17: Immunity and Infection

A vaccine is available to prevent infection by

Protozoa are associated with all of the following illnesses EXCEPT

Tears,saliva,and vaginal secretions are rich in ______ and other proteins that break down and destroy many microorganisms.

West Nile virus and hantavirus infections primarily involve transmission by vectors rather than person-to-person spread.

The most effective way of preventing the flu in the winter is by protecting your body from cold temperatures.

A vaccine is available for a common cause of pneumonia.

White blood cells that directly destroy virus-infected and cancerous cells are ______ cells.

Most ulcers are caused by

Streptococcus and staphylococcus are examples of

One of the best ways to break the chain of infection is to

Yellowing of the skin and whites of the eyes associated with hepatitis is called

The use of over-the-counter antihistamines is a form of immunotherapy.

The largest organisms that can enter the body to cause infection are

Rabies is most often transmitted by

Antibodies are produced by macrophages.

People who fail to finish a prescription of antibiotics contribute to the development of antibiotic-resistant strains of bacteria.

Define "vaccine," and describe how immunization can help prevent infection.List at least three immunizations available in the United States.

Immunization is based on the

Rocky Mountain spotted fever and typhus are caused by the rickettsias bacterium.

Varicella-zoster virus causes infectious mononucleosis.

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