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Author Question: A stool culture from an 11-month-old male suffering from bloody diarrhea gave the following results ... (Read 73 times)

lindiwe

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on: Jun 25, 2018
A stool culture from an 11-month-old male suffering from bloody diarrhea gave the following results on differential enteric media:
 
  MacConkey agar: clear colonies
   Xylose Lysine Deoxycholate agar: clear colonies
   Hecktoen Enteric agar: clear colonies
  Which of the following tests must be performed to confirm the final identification of this enteric pathogen?
  A) Shigella serotyping B) No further testing is required
  C) Salmonella serotyping D) Latex agglutination for E. coli O157:H7

Question 2

A microbiology student has walking pneumonia due to Mycoplasma pneumoniae. He decides to self-medicate with the leftover penicillin tablets he had from his last case of Streptococcus pyogenes. What is the fault in his thought process?
 
  A) Mycoplasma pneumoniae does not possess porins to take in the antibiotic.
  B) Penicillin is destroyed due to beta-lactamase production by M. pneumoniae.
  C) Penicillin is not routinely used to treat group A Streptococcus pharyngitis.
  D) M. pneumoniae does not possess a cell wall.


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Missbam101

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Reply #1 on: Jun 25, 2018
Answer to Question 1

A

Answer to Question 2

D


lindiwe

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Reply 2 on: Jun 25, 2018
Great answer, keep it coming :)

xiaomengxian

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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