Podcast
Questions and Answers
What are the three components of the epidemiologic triad?
What are the three components of the epidemiologic triad?
- Demographic, biological, and socioeconomic characteristics
- Host, agent, and environment (correct)
- Biological, physical, and chemical agents
- Pathogen, disease, and environment
Which of the following is NOT a part of the environment in the infectious disease model?
Which of the following is NOT a part of the environment in the infectious disease model?
- Physical environment
- Social environment
- Biological environment
- Nutrient agents (correct)
What is the definition of a communicable disease?
What is the definition of a communicable disease?
- An illness caused by environmental factors
- An illness due to a specific infectious agent or its toxins transmitted from an infected source to a susceptible host (correct)
- An illness caused by genetic factors
- An illness transmitted only from an infected person to a susceptible host
Which of the following is NOT considered a biological agent?
Which of the following is NOT considered a biological agent?
What is meant by the term 'infectious diseases result from the interchangeable interaction of a pathogen, host and environment'?
What is meant by the term 'infectious diseases result from the interchangeable interaction of a pathogen, host and environment'?
Which of these characteristics are included in the epidemiologic triad?
Which of these characteristics are included in the epidemiologic triad?
What is the time interval between invasion by an infectious agent and the appearance of the first sign or symptom of the disease?
What is the time interval between invasion by an infectious agent and the appearance of the first sign or symptom of the disease?
What does it mean when an infectious agent lies dormant within the host without clinical manifestations?
What does it mean when an infectious agent lies dormant within the host without clinical manifestations?
What is the degree of pathogenicity, defined as the disease evoking power of a micro-organism in a given host?
What is the degree of pathogenicity, defined as the disease evoking power of a micro-organism in a given host?
What is the entry, development and/or multiplication of the infectious agent in the body of man or animal called?
What is the entry, development and/or multiplication of the infectious agent in the body of man or animal called?
What does it mean when a person or animal harbors a specific infectious agent in the absence of visible clinical disease and serves as a potential source of infection to others?
What does it mean when a person or animal harbors a specific infectious agent in the absence of visible clinical disease and serves as a potential source of infection to others?
What is the time during which an infectious agent may be transmitted directly or indirectly from an infected person to a susceptible person or animal called?
What is the time during which an infectious agent may be transmitted directly or indirectly from an infected person to a susceptible person or animal called?
What is defined as the progress of a disease in an individual over time in absence of intervention?
What is defined as the progress of a disease in an individual over time in absence of intervention?
What means lodgment, development, and reproduction of a parasite on the body surface or inside body tissues?
What means lodgment, development, and reproduction of a parasite on the body surface or inside body tissues?
What is defined as the time from exposure to an infectious agent to development of disease?
What is defined as the time from exposure to an infectious agent to development of disease?
What does it mean when non-pathogenic agents cause disease when host immunity decreased?
What does it mean when non-pathogenic agents cause disease when host immunity decreased?
