Mechanisms Of Infectious Disease Part 2

47 Questions | Total Attempts: 24

Settings
Please wait...
Infectious Disease Quizzes & Trivia

Mechanisms of Infection and Disease Transmission


Questions and Answers
  • 1. 
    Opportunistic Pathogens don't produce disease when the health and immunity of the host have been severely weakened by illness, malnutrion, or medical therapy?
    • A. 

      True

    • B. 

      False

  • 2. 
    What is the leading cause of death in Developed Countries?
  • 3. 
    What is the leading cause of death in Developing Countries?
  • 4. 
    The Iceberg Concept of Infectious disease
    • A. 

      Exposure without infection is at the tip of the iceberg

    • B. 

      Concept that the majority of viral infections pass unnoticed without any signs of disease as the classical and severe disease cases only represent the tip of the iceberg

    • C. 

      Death and severe disease is under the "water"

    • D. 

      Subclinical disease is at the tip of the iceberg

  • 5. 
    What is Herd Immunity?
    • A. 

      Increased probability that a group will develop an epidemic because the proportion of immune individuals reduces the chance of contact between infected and susceptible persons

    • B. 

      Decreased probability that a group will develop an epidemic because the proportion of immune individuals reduces the chance of contact between infected and susceptible persons

    • C. 

      Decreased probability that a group will develop an epidemic because the proportion of immune individuals gains the chance of contact between infected and susceptible persons

    • D. 

      Increased probability that a group will develop an epidemic because the proportion of immune individuals increase the chance of contact between infected and susceptible persons

  • 6. 
    Factors that influence Disease Transmission are? (Check all that apply)
    • A. 

      Infectivity

    • B. 

      Air Quality

    • C. 

      Behavior

    • D. 

      Immunogenicity

    • E. 

      Morbidity rates

    • F. 

      Mortality rates

    • G. 

      Geography

    • H. 

      Infectious Dose

  • 7. 
    Agent factors that influence exposure and infection are?
    • A. 

      Ability to enter a portal in the human or other host

    • B. 

      Ability to reach and proliferate at site(s) of infection in the host

    • C. 

      A only

    • D. 

      A & B

  • 8. 
    There are 2 types of Human Reservoirs?  Acute Clinical Cases Carriers
    • A. 

      True

    • B. 

      False

  • 9. 
    Acute clinical cases of Human Reservoirs are?
    • A. 

      People harboring infectious agents

    • B. 

      People who are infected with the infectious agent and are ill

    • C. 

      More likely to be diagnosed and treated

    • D. 

      Are more of a risk to give other infection

    • E. 

      A & B

    • F. 

      A & C

    • G. 

      B & C

  • 10. 
    Carriers of Human Reservoirs are?
    • A. 

      People who harbor infectious agents but are ill

    • B. 

      More of a risk to others due to unawareness and unrestricted activities

    • C. 

      People who harbor infectious agents but are not ill

    • D. 

      There are 4 types of carries of Human Reservoirs

    • E. 

      B, C & D

    • F. 

      B & C

    • G. 

      A & B

  • 11. 
    Potential Modes of transmission are: (Check all that apply) Portal of Entry
    • A. 

      Penetration

    • B. 

      Infectivity

    • C. 

      Direct contact

    • D. 

      Inhalation

    • E. 

      Indirect contact

    • F. 

      Ingestion

  • 12. 
    Vertical transmission or congenital infections from mother to child include: Across the placenta TORCHS Severity of congenital defects depends on the gestational age of the fetus Can cause profound mental retardations and neurosensory deficits
    • A. 

      True

    • B. 

      False

  • 13. 
    Infectious Dose of ingestion: The pathogen must be able to stand the high pH and no enzymatic activity of the stomach Peristaltic movements of the intestines Over abundance of normal GI tract flora
    • A. 

      True

    • B. 

      False

  • 14. 
    Symptomatology is also called the clinical picture or disease presentation?
    • A. 

      True

    • B. 

      False

  • 15. 
    What are exceptions to the normal course of infections?
    • A. 

      Chronic infections

    • B. 

      Resolution of symptoms is prolonged

    • C. 

      Subclinical or subacute illness

    • D. 

      Immune response by the host

    • E. 

      Insidious disease (prodromal protracted)

    • F. 

      Fulminant Illness (sudden intense disease)

    • G. 

      Constitutional changes in the host

  • 16. 
    A systemic pathogen disseminates from the site of primary infection, which are considered Systemic Pathogens?
    • A. 

      Neisseria meningitides

    • B. 

      Neisseria gonorrhea

    • C. 

      Salmonella typhi

    • D. 

      Treponema

    • E. 

      Borrelia burgdorferi

  • 17. 
    Virulence Factors mediate the tissue damage and pathophysiology of infectious disease which are?
    • A. 

      Toxins

    • B. 

      Adhesion factors

    • C. 

      Evasive and invasive factors

    • D. 

      All of the above

  • 18. 
    Which are exotoxins?
    • A. 

      Diphtheria toxin

    • B. 

      Botulism toxin

    • C. 

      Tetanus toxin

    • D. 

      Cholera toxin

    • E. 

      Enterotoxins

    • F. 

      SPEA

    • G. 

      Shiga toxin

  • 19. 
    An emerging infection is new, reemerging or drug resistant infections whose incidence in humans has increased within the past two decades or whose incidence threatens to increase in the near future?
    • A. 

      True

    • B. 

      False

  • 20. 
    Contributing factors to "newer" merging infections (check all that apply)
    • A. 

      Human vulnerability

    • B. 

      Climate and weather

    • C. 

      Changing ecosystems

    • D. 

      International travel and commerce

    • E. 

      War and famine

    • F. 

      Technology and industry

    • G. 

      Poverty and social inequality

    • H. 

      Breakdown of public health measures

    • I. 

      Lack of political will

    • J. 

      Intent to harm

    • K. 

      Microbial adaptation and change

  • 21. 
    Bioterrorism is the deliberate release of an infectious disease or toxin to cause illness or death in people, animals, or plants?
    • A. 

      True

    • B. 

      False

  • 22. 
    Category A Agents (check all that apply)
    • A. 

      Anthrax

    • B. 

      Vibrio Cholerae

    • C. 

      Botulism

    • D. 

      Brucella

    • E. 

      Smallpox

    • F. 

      Tularemia

    • G. 

      Cryptosporidium parvum

    • H. 

      Bubonic plague

    • I. 

      Viral hemorrhagic fever

    • J. 

      Nipah Virus

  • 23. 
    Category B Agents (Check all that apply)
    • A. 

      Vibrio cholerae

    • B. 

      Cryptosporidium parvum

    • C. 

      Salmonella

    • D. 

      Brucella

    • E. 

      Staph aureus

    • F. 

      Clostridium perfringes

    • G. 

      Ricin

  • 24. 
    Category C Agents (check all that apply)
    • A. 

      Nipah virus

    • B. 

      Multidrug resistant TB

    • C. 

      Tick-borne & yellow fever viruses

    • D. 

      Cryptosporidium parvum

    • E. 

      Avian Influenza

    • F. 

      Monkeypox