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Which of the following statements about tuberculosis is NOT true?


A) It usually affects the digestive tract.
B) Many strains respond to a long course of antibiotic treatment.
C) Most people infected with tuberculosis have latent infections that never go active.
D) It is typically transmitted via the respiratory route.

E) B) and D)
F) A) and C)

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Mycoplasmas are a common cause of pneumonia among college students that live in dormitories.

A) True
B) False

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


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

E) All of the above
F) None of the above

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Johnny has a red,sore throat with white patches on the tonsils,swollen lymph nodes,fever,and a headache.Which of the following bacteria caused Johnny's symptoms?


A) staphylococcus
B) streptococcus
C) mycobacterium
D) Escherichia coli

E) B) and D)
F) A) and B)

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An infection spread throughout the body by blood or the lymphatic system is called


A) transmitted.
B) lymphatic.
C) localized.
D) systemic.

E) C) and D)
F) A) and B)

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For which of the following diseases would one receive a vaccine made from a pathogen that has already been killed?


A) measles
B) mumps
C) rubella
D) influenza

E) B) and C)
F) A) and C)

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