Humans become infested with liver flukes by ingesting the (cercaria/metacercaria/miricidium) stage of the worm.
Fill in the blank(s) with the appropriate word(s).
metacercaria
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A middle-aged women presented to the emergency room complaining of cramping and gastrointestinal discomfort. She had recently attended a family reunion the past weekend. The event was a picnic where potato salad, hamburgers, deviled eggs, hot dogs and chips were served. A feces culture was requested resulting in no growth. What would be the next recommended follow-up testing?
a. Serologic testing for IgM and IgG b. No follow-up testing required c. Collect an additional specimen and at-tempt to cultivate on specialized media d. Treat the patient with ampicillin
In order to prove that a bacterium is pathological according to Koch’s postulates, all of the following
must be true, EXCEPT
a. The bacteria must be present in every case of the disease b. The bacteria must be isolated from the infected host and grown in pure culture c. The specific disease must be induced when a pure culture of the bacteria is introduced into a healthy host d. The bacteria must be isolated from the now experimentally infected host e. The bacterium must produce spores that can be transmitted from one individual to another
Sensory receptors respond to changes in the environment called ________
Fill in the blank(s) with correct word
In light of increasing antibiotic resistance, alternative antimicrobial therapies are being explored. These include the CRISPR system, which ____
A. When delivered with an antibiotic, can splice out the genes causing resistance to the drug, which is then able to kill the bacteria B. Directly kill the bacteria instead of requiring an antibiotic C. Is comprised of immune peptides that are not susceptible to bacterial resistance D. Extracts drugs from bacteria that are not cultivable in a laboratory environment