In terms of microbial pathogenicity, molecular Koch's postulates are a set of experimental criteria that show: A microbe is the aetiological agent of a disease A gene encodes a product that contributes to disease A gene encodes a product that contributes to immunity to a disease A mutation does not contribute to disease

In terms of microbial pathogenicity, molecular Koch's postulates are a set of experimental criteria that show: A microbe is the aetiological agent of a disease A gene encodes a product that contributes to disease A gene encodes a product that contributes to immunity to a disease A mutation does not contribute to disease

Body Structures & Functions

12th Edition

ISBN:9781285695495

Author:Scott

Publisher:Scott

Chapter16: Infection Control And Standard Precautions

Section: Chapter Questions

Problem 5CS

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All except which of the following are compared when looking at the sequence analysis of ribosomal components in microorganism as a way to determine relatedness? a)ribosomal amino acid sequence b)rRNA sequence c) rDNA sequence d) antibotic resistance
What is the best explanation for why a bacteriostatic treatment might be chosen over a bacteriocidal treatment? Bacteriostatic treatments will eliminate all bacteria while bacteriocidal treatments will only eliminate a portion of the bacteria. Bacteriostatic treatments typically have lower toxicity to the host when compared to bacteriocidal treatments. Bacteriostatic treatments will prevent all bacterial growth, while bacteriocidal treatments will permit some bacterial growth. Bacteriostatic treatments are typically more costly than bacteriocidal treatments.
When choosing a "first line" drug to treat an infection, the most important characteristic would be? the specific mechanism of action bactericidal broad spectrum low toxicity (fewest side effects) In what cell type can both transcription and translation occur simultaneously? both prokaryotic and eukaryotic cells neither prokaryotic and eukaryotic cells prokaryotic cells eukaryotic cells
Pathogens have a variety of traits that interact with a host and enable the pathogen to enter a host, adhere to host cells, gain access to nutrients, and escape detection or removal by the immune system. These traits are called virulence factors. The following enzymes and toxin can act as virulence factors and contribute to bacteria’s pathogenicity. What are the specific actions of the following enzymes and toxin that make them virulence factors? Coagulase Kinase (such as staphylokinases and streptokinases) Hyaluronidase Collagenase Cytotoxin
Antibiotic resistant bacteria have become a major concern for many public health officials. Widespread use of antibiotics has created an evolutionary pressure on infectious bacteria to develop immunity to these medications. The result is an increase in antibiotic resistant microbes, particularly in settings where antibiotics are commonly used, such as hospitals. One strategy public health officials have devised to counteract these infectious microbes is "antibiotic cycling” where specific antibiotics are withdrawn from the market for a period of several years, then reintroduced as another antibiotic is withdrawn. How would this strategy help limit antibiotic resistance? A. It is impossible for a bacterium to maintain resistance to two antibiotics at once B. When a given antibiotic is not in use, it is an evolutionary disadvantage to carry the unneeded gene C. If a specific antibiotic is removed from the market it is possible to substitute with a related antibiotic such as…
You are working in a pathology lab where you have to isolate the disease causing agents from human samples. You isolate a disease causing agent and treat it with an enzyme that degrades its protein and it remains unaffected. You decided to treat it with RNAse and found it lost its activity. What kind of pathogen you could suspect it could be? It is a one word answer only. (Hint: It has no capsule, what is it?)
WHEN A BACTERIAL ORGANISM IS DOCUMENTED AS THE CAUSE OF A CONDITION (E.G. UTI), IT IS CODED AS EITHER A FIRST LISTED OR A SECONDARY CODE CODED AS A FIRST LISTED DIAGNOSIS ONLY REPORTED AS A SECONDARY CODE, BELOW THE CODE FOR THE CONDITION NOT CODED BECAUSE BACTERIAL ORGANISMS ARE ALWAYS CLASSIFIED IN THE DISEASE CODE
Note that it is not appropriate to self-diagnose outside of a medical context and this is a completely hypothetical scenario. Imagine you have a rash on your foot. You're concerned that it's an infection and inoculate a sample onto an agar plate. You wonder, How can I figure out whether the pathogen is a bacterium vs a eukaryote? You decide to use lab supplies to get a basic understanding of the pathogen. Be specific about what tests you use and what you expect the results to be. Limit yourself to experiments we could do in our lab. What is one experiment you could do, involving culturing the organism?
Note that it is not appropriate to self-diagnose outside of a medical context and this is a completely hypothetical scenario. Imagine you have a rash on your foot. You're concerned that it's an infection and inoculate a sample onto an agar plate. You wonder, How can I figure out whether the pathogen is a bacterium vs a eukaryote? You decide to use lab supplies to get a basic understanding of the pathogen. Be specific about what tests you use and what you expect the results to be. Limit yourself to experiments we could do in our lab. What is a procedure you could do, involving making a slide of the organism?
Some antibiotics fail to kill/inhibit a pathogen simply because the microbe is naturally (intrinsically) resistant to it. True or False ?
which of the following definitions is not technically correct? a. broad spectrum - effective against many different types of microbes b. bacteriostatic - prevents microbes from growing c. antibiotic - microbial or synthetic product that kills or inhibits growth of microbes. d. all of the above are correct
Describe one scenario in which antibiotic resistant bacteria in a chicken could enter your body.

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		A microbe is the aetiological agent of a disease
		A gene encodes a product that contributes to disease
		A gene encodes a product that contributes to immunity to a disease
		A mutation does not contribute to disease