Mastering Microbiology Ch 14

Pathology refers to the study of structural and functional changes that occur in the body as a result of a disease
Which of the following statements concerning pathology, infection, and disease is true
E. Coli within the large intestine
Which of the following is an example of the symbiotic relationship known as mutualism?
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Mastering Microbiology Ch 14
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The pathogen must be isolated from inoculated animals and must be different from the original organism.
Hint: This is not one of the criteria. According to Koch’s postulates, the pathogen isolated from the inoculated animals must be the same as teh original organism
Koch’s postulates established criteria for proving that a specific organism causes a specific disease. Which of the following is NOT one of the criteria given by Koch’s postulates?
Which of the following is classified as a latent disease?
Which of the following is a fungal zoonosis that can be transmitted by direct contact?
A student sneezes on her test booklet. The instructor grades it and catches her cold
Which of the following would be an example of disease transmission via INDIRECT contact?
where and when a disease occurs, and how it is transmitted
Epidemiology is defined as the study of?
To learn how to treat and prevent various diseases
What is the role of epidemiology?
An infected toy
Which of the following would be considered a fomite?
A fly carrying disease from fecal matter to food
Which of the following would be considered a vector?
Contact transmission
When aerosols containing pathogens spread disease from a distance of less than one meter, it is considered?
Contact, vehicle, and vector transmission
Which of the following is considered a major category of transmission of disease?
The present of Listeria on undercooked chicken served at dinner
Which is an example of vehicle disease transmission?
emergence of avian influenza A (H5N1): use of antibiotics
Hint: Emergence of avian influenza A is not associated with the use of antibiotics.
Which following choices list several types of diseases, along with factors that may contribute to their emergence. Which disease and associated factor is NOT match?
Wash my hands before interacting with my patient.
As a healthcare worker, I am keenly aware of how important it is to avoid harming my patients. I worry about inadvertently transmitting an infectious disease to an already compromised individual. According to the CDC, what is the MOST important thing I can do to avoid this?
The period of convalescence is the time during which the person regains health and fully recovers (back to the pre-disease state).
Which of the following statements about the development of infectious diseases is correct?
Malaria is an infectious disease that infection with a protozoan. In certain tropical regions, malaria is constantly present. We would say that malaria is a(n)_____ disease in these regions?
Coxiella burnetii
During a six-month period, 239 cases of pneumonia occurred in a town of 300 people. A clinical case was defined as fever 39C lasting >2 days with three or more symptoms. (i.e., chills, sweats, severe headache, cough, aching muscles/joints, fatigue, or feeling ill). A laboratory-confirmed case was defined as a positive result for antibodies against Coxiella burnetii. Before the outbreak, 2000 sheep were kept northwest of the town. Of the 20 sheep tested from the flock, 15 were positive for C. burnetii antibodies. Wind blew from the northwest, and rainfall was 0.5 cm compared with 7 to 10 cm during each of the previous three years.

The etiologic agent of the disease in the situation is?

may also be an opportunistic pathogen
A commensal bacterium?
At least one member must benefit from a symbiotic relationship
Which of the following statements is TRUE?
the normal microbiota
The yeast Candida albicans does not normally cause disease because of?
epidemic: a disease that is endemic across the world
Which of the following definitions is INCORRECT?
The rise in herd immunity amongst a population can directly attributed to?
secondary infection: a long-lasting illness
Which of the following definitions is INCORRECT?
A disease in which the causative agent remains inactive for a time before producing symptoms is referred to as?
urinary tract infections
In which of the following diseases can gender be considered a viable predisposing factor?
incubation and convalescence
In which of the following patterns of disease does the patient experience no signs or symptoms?
a hypodermic needle
Which of the following is a fomite?
indirect contact transmission
A cold transmitted by a facial tissue is an example of which form of disease transmission?
acquired during the course of hospitalization
A nosocomial infection is?
The science that deals with when diseases occur and how they are transmitted is called?
Atlanta, GA
The CDC is located in?

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