Microbiology: An Introduction
12th Edition
ISBN: 9780321929150
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: PEARSON
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Chapter 21, Problem 10R
Summary Introduction
To review:
An anaerobic gram positive bacillus found on the skin. This bacterium causes skin infections which are often treated with retinoid or benzoyl peroxide.
Introduction:
Propionibacterium acnesis a gram positive anaerobic rod shaped bacterium which is the common cause of acne. Some of the other infections caused by this bacterium include blepharitis and endophthalmitis.
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A 55-year-old woman with type 2 diabetes mellitus comes to the physician with a 2-day history of oozing, foul-smelling wound on her foot. Physical
examination shows a 4-cm, necrotizing wound on the heel with purplish black discoloration of the skin around the wound, and crepitant bullae producing
thin, serous fluid. A Gram stain of tissue biopsy from the site shows gram-positive rods. Which of the following toxins is produced by the most likely
causal organism?
Answers A-E
A Alpha toxin
B Endotoxin
C
D
E
Exfoliative toxin
Exotoxin A
Panton Valentine toxin
O
O
9:
O
A 55-year-old woman with type 2 diabetes mellitus comes to the physician with a 2-day history of oozing, foul-smelling wound on her foot. Physical
examination shows a 4-cm, necrotizing wound on the heel with purplish black discoloration of the skin around the wound, and crepitant bullae producing
thin, serous fluid. A Gram stain of tissue biopsy from the site shows gram-positive rods. Which of the following toxins is produced by the most likely
causal organism?
Answers A-E
Alpha toxin
B Endotoxin
C Exfoliative toxin
D Exotoxin A
E Panton Valentine toxin
45 QUESTIONS VERSION 2M64
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Chapter 21 Solutions
Microbiology: An Introduction
Ch. 21 - Discuss the usual mode of entry of bacteria into...Ch. 21 - What bacteria are identified by a positive...Ch. 21 - Prob. 3RCh. 21 - Complete the table of epidemiology below.Ch. 21 - Why do some states require a test for antibodies...Ch. 21 - Prob. 6RCh. 21 - Prob. 7RCh. 21 - Prob. 8RCh. 21 - Prob. 9RCh. 21 - Prob. 10R
Ch. 21 - Prob. 1MCQCh. 21 - Prob. 2MCQCh. 21 - Prob. 3MCQCh. 21 - A 12-year-old boy had a fever, rash, headaches,...Ch. 21 - A patient has conjunctivitis. If you isolated...Ch. 21 - You microscopically examine scrapings from a case...Ch. 21 - Prob. 7MCQCh. 21 - Prob. 8MCQCh. 21 - Prob. 9MCQCh. 21 - Prob. 10MCQCh. 21 - A laboratory test used to determine the identity...Ch. 21 - Prob. 2ACh. 21 - Prob. 3ACh. 21 - Prob. 4ACh. 21 - Prob. 1CAECh. 21 - Prob. 2CAECh. 21 - Prob. 3CAE
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