Exam 16: Host-Microbe Interactions

A number of viruses often include a similar set of symptoms when they cause an infectious disease state (fever, headache, fatigue, runny nose). Why would they all cause the same symptoms if they're different viruses?

Which of the following is NOT a mechanism for avoiding destruction by a phagocyte?

Colonization of the body is inhibited by

Which of the following cause a foodborne intoxication?

Please select the correct definition of balanced pathogenicity.

Only Gram-positive bacteria produce exotoxins.

The damage caused by parasites may be due to all of the following EXCEPT

The suffix -emia means in the

Bacteria may survive phagocytosis by

The microorganisms that are occasionally found in or on the body are called

You explain to Jay that infections and the associated diseases are often described according to the timing and duration of the symptoms. You define the different categories to him, telling him that he has

Obligate intracellular parasites may be grown in special synthetic media.

A young couple brings their 3-month old baby to the emergency department where you work as a triage nurse. The parents tell you that the baby had a runny nose, low grade fever, and mild cough two days earlier, which they assumed was a cold. However, the cough has become significantly worse and they are really worried about the gasping sound the child makes when breathing in after a coughing spell. The baby's cough is so bad that she has been vomiting and is refusing to feed. You are concerned that the baby has pertussis, commonly known as whooping cough. You give the parents some information while they are waiting for a physician to examine their child. -You explain to the parents that pertussis is a highly contagious disease, meaning that

A more modern equivalent to Koch's postulates is termed

A relationship in which one partner benefits and the other is unaffected is termed

Organisms that are found together and interact on a more or less permanent basis are in a relationship termed

Which is/are True of viruses?

Jay tells you that he ate chicken for dinner, which you suspect is the source of his infection. You tell Jay that infectious disease progresses through several stages, and that he is in the 

The composition of the normal microbiota may be affected by

The infectious dose of most pathogens is about equal.