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Exam 29: Person-To-Person Bacterial and Viral Diseases

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Question 21

Multiple Choice

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The CD4 molecule is

A) an HIV surface glycoprotein.
B) a cell-surface protein receptor for HIV.
C) found only on T-helper cells.
D) an HIV surface glycoprotein that is found only on T-helper cells.

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

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Question 22

Multiple Choice

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Which of the following is/are used to identify methicillin-resistant Staphylococcus aureus?

A) selective media
B) differential media
C) PCR
D) selective media,differential media,and PCR

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

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Question 23

True/False

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Chickenpox,caused by a herpesvirus,results in a systemic papular rash that quickly heals.

The availability of rapid antigen detection (RAD)systems for pathogenic streptococci has eliminated the need to culture Streptococcus pyogenes.

Which disease causes over 1.6 million deaths per year worldwide,which is approximately 11% of all deaths related to infectious diseases?

More than one type of influenza virus can infect a given cell at a given time.

Which organism causes the highest number of sexually transmitted diseases each year?

Pus formation in skin lesions caused by Staphylococcus aureus infections is in part due to production of

Individuals who have an active case of tuberculosis may spread the disease simply by ________ uninfected individuals.

In the context of the influenza virus,describe the mechanistic difference between an antigenic drift and an antigenic shift.Also indicate the result of each.

Describe the disease caused by herpes simplex 1 virus (HSV-1)as well as how it is spread.Based on the disease characteristics,is HSV-1 capable of lysogeny?

Which of the following is the causal agent of gastric ulcers?

The organisms that cause pneumococcal pneumonia are rarely found as a part of the normal flora of healthy adults.

Several strains of ________ cause genital warts and cervical cancer.

Whooping cough is frequently observed in

The most prevalent human infectious diseases are caused by

Describe which diseases human papillomavirus (HPV)can cause in males and females.What is the most common symptom of HPV infection,and why is this of concern?

The most common infectious disease(s) is/are

Hepatitis B and C are transmitted via the

Explain the relationship between chickenpox and shingles,how each is contracted,and how each can be prevented.