Exam 18: Introduction to Infectious Diseases

The number of deaths due to a specific disease over a specified number in the population is referred to as the ______________ rate.

In order to cause disease,successful infectious pathogens must be able to do ALL of the following EXCEPT:

Which of these factors complicates the application of Koch's postulates?

Which of these is an example of a common-source epidemic?

Which of these agencies plays the major role in epidemiological surveillance in the USA?

What is the prevalence rate of a disease?

In the CRISPR-Cas system,which component is responsible for the bacterial equivalent of "immune memory"?

Which of these factors contributes to the resistance of SJL/J mice to murine hepatitis virus?

Enterohaemorrhagic Shiga toxin influences cellular

Term for a clustering of virulence genes on the chromosome of a pathogenic microbe.

Which of these choices represent symptoms? (Select all that apply)

Which of these agencies collates information regarding notifiable disease incidence in the United States?

This is an example of a pathogen that has become more of a threat because its host range and virulence have increased

A contagious disease is MOST likely to be spread via :

Endotoxins are toxins that are made in the cell and excreted to the external environment.

Examine Table 18.1 in the text.Which symptom or sign would be MOST definitive in diagnosing one of the diseases listed?

Given what you know about gene transfer,which of these transfer methods has the greatest potential to naturally facilitate the creation of pathogenicity islands (PAIs)?

Which of these is true of an attenuated strain of a pathogenic microbe infecting a susceptible healthy host?

Pathogens that have the ability to change their surface antigens are better able to do which of the following?

The influenza mortality rate rises from the yearly 3% average to 12% one winter season in Wisconsin.This would make the occurrence likely to be termed as a/an: (Select all that apply)