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Exam 13: Infectious Diseases

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Question 21

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Single-celled organisms called ________ can be found in almost all environments and can inhabit the human body harmlessly or helpfully.

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Question 22

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Phagocytes, cells involved in the innate immune system, digest damaged cells, foreign particles, and bacteria.

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There are four types of human papillomavirus (HPV), each with different effects.

Recent sexual activity is one risk factor for developing a urinary tract infection.

When bacteria inhabit a host harmlessly, or even helpfully, they are considered to be part of the ________.

The most common sexually transmitted disease in the United States is

Which of the following statements regarding hepatitis B and hepatitis C is FALSE?

Sexual transmission of hepatitis C is relatively common.

A safe and effective vaccine is available for which of the following sexually transmitted diseases?

Drug resistant tuberculosis is a serious concern among at-risk populations.

The widespread distribution of food decreases the risk of contaminated food reaching a large number of people.

The term used to describe the speed and intensity with which a pathogen is likely to cause an infection is

Which of the following is NOT among the steps you should take to protect yourself from infectious diseases?

The body's initial reaction to damage is the acute ________ response, a series of changes that increase blood flow to the site.

Tapeworms belong to which category of organisms involved in human infection and disease?

All of the following are chemical barriers involved in immunity EXCEPT

Approximately 20 percent of people infected with ________, a virus that causes inflammation of the liver and requires introduction directly in the bloodstream for transmission to occur, will develop symptoms.

The skin is the first line of defense against infection.

Cases of Staphylococcus aureus (MRSA) have been associated with receiving tattoos.

Immunity that develops after exposure to an infectious agent or a vaccine is ________ immunity.