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Which staining technique is used to distinguish bacteria based on their ability to produce structures that can survive extreme heat stress?
Endospore stain
Why are the relationships between pathogenic microbes and their hosts considered parasitic?
The microbe benefits from the interaction while the host is harmed.
Which characteristic of dracunculiasis has been pivotal to the success of its eradication campaign?
Dracunculiasis has no animal reservoir.
Which type of organism would be most likely to grow on food stored in a refrigerator or freezer?
A psychrophile would be most likely to grow on food stored in a refrigerator or freezer as these microorganisms thrive in cold temperatures.
Why is the production of lactic acid by the resident microbe Lactobacillus important to human health?
Lactic acid is important to human health because it inhibits the growth of pathogenic yeasts.
Which type of infections are prevented by proper sterilization of hospital equipment and healthcare worker handwashing?
Nosocomial infections are prevented by proper sterilization of hospital equipment and healthcare worker handwashing.
A patient is determined to have contracted Lyme disease after being bit by an infected tick. What type of transmission is described in this scenario?
Vector
Synergism
How can pathogens typically found in animal feces, such as hantavirus, be transmitted through air?
Dried fecal particles are carried on dust and inhaled by humans.
Which vaccine type would result in both a cell-mediated and humoral immune response because pathogens are able to grow in the host?
Attenuated viral vaccine
Conjugate vaccines combine an antigen that creates a weak immune response with an antigen that creates a strong immune response, which can result in higher efficacy compared to a subunit vaccine for the same pathogen.
Herd immunity is achieved when the immune portion of a population renders un-immunized members protected.
What does the presence of green and pink structures in a slide prepared with healed manchette green, washed, and counterstained with stained suggest?
The culture is a spore-former
What is the significance of the microbes tend within the domains Bacteria and Archaea?
They are prokaryotes and can carry out asexual reproduction.
Only variolation uses uncompromised viruses
A hospital notices an increase in patients being admitted with gastrointestinal symptoms and dehydration over a two-week period. An epidemiological analysis reveals that the cause is the same pathogen, but that none of the hospitalized individuals were ever in the same location at the same time. What is an explanation for this?
These individuals all consumed contaminated food from a common manufacturing source.
How does the CDC (Centers for Disease Control) obtain information shout important infectious diseases incidence and prevalence?
Important infectious diseases are labeled as notifiable, and physicians are required lo report all cases.
Stains are often applied to increase the visibility of microscopic components or characteristics if the chromophore is the positively charged ion, the stain is classified as a basic dye, if the chromophore is the negatively charged ion, the stains considered an acidic dye. Which component of a bacterial cell would be stained by a basic dye?
The cell wall
