Microbiology With Diseases By Taxonomy (6th Edition)
6th Edition
ISBN: 9780134832302
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
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Chapter 10, Problem 15CT
Enterococcus faecium is frequently resistant to vancomycin. Why might this be of concern in a hospital setting in terms of developing resistant strains of other genera of bacteria?
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Which of the following is true regarding pathogenic strains of Staphylococcus and Streptococcus, respectively?
A) O Staphylococcus aureus is a common cause of sore throats.
B) O Alpha-hemolytic Streptococci turn blood agar green and include members that cause pneumonia and tooth decay,
C)
Gamma-hemolytic Streptococci completely lyse red blood cells on blood agar.
D) O The beta-hemolytic group of Streptococci does not contain any pathogenic types.
Resistance to antimicrobial agents is more commonly seen in hospital-acquired infections with enteric bacteria than in community-based infections with the same species. Explain why this is so.
Which of the following about Staphylococcus aureus is false?a) It is generally coagulase-positive.b) Its infectious dose is increased in the presence of foreign material.c) Some strains infecting wounds can cause toxic shock.d) Nasal carriers have an increased the risk of surgical wound infection.e) It is pyogenic.
Chapter 10 Solutions
Microbiology With Diseases By Taxonomy (6th Edition)
Ch. 10 - Prob. 1TMWCh. 10 - Some antimicrobial drugs are harmful to humans....Ch. 10 - Prob. 3TMWCh. 10 - Why is it incorrect to say that an individual...Ch. 10 - Prob. 1CCSCh. 10 - Prob. 1EDCSCh. 10 - Prob. 1MCCh. 10 - Prob. 2MCCh. 10 - Prob. 3MCCh. 10 - Which of the following statements is relevant in...
Ch. 10 - Prob. 5MCCh. 10 - Multiple-drug-resistant microbes _____. a. are...Ch. 10 - Prob. 7MCCh. 10 - Prob. 8MCCh. 10 - Prob. 9MCCh. 10 - What specific test for antimicrobial efficacy is...Ch. 10 - What characteristics would an ideal...Ch. 10 - Contrast narrow-spectrum and broad-spectrum drugs....Ch. 10 - Why is the fact that drug Z destroys the NAM...Ch. 10 - Prob. 4SACh. 10 - Prob. 6SACh. 10 - Prob. 7SACh. 10 - Prob. 8SACh. 10 - Compare and contrast the actions of polyenes,...Ch. 10 - Prob. 10SACh. 10 - Prob. 1CTCh. 10 - Prob. 2CTCh. 10 - Prob. 3CTCh. 10 - Prob. 4CTCh. 10 - Prob. 5CTCh. 10 - Even though aminoglycosides such as gentamicin can...Ch. 10 - Prob. 7CTCh. 10 - Prob. 8CTCh. 10 - Prob. 9CTCh. 10 - Antiparasitic drugs in the benzimidazole family...Ch. 10 - Prob. 11CTCh. 10 - Scientists have cultured bacteria isolated from...Ch. 10 - Prob. 14CTCh. 10 - Enterococcus faecium is frequently resistant to...
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- This petri plate shows the susceptibility of Staphylococcus aureus to different antibiotics. Which antibiotic is least effective? a) Methicillin - Meth b) Control c) All are ineffective d) Ampicillin - Amp e) Vancomycin - Vanarrow_forwardWhich of the following is a consideration in treating bacterial infections A) Bacteriostatic b) bactericidal c) broad spectrumarrow_forwardMycobacterium tuberculosis is very difficult to stain because of the A) presence of ribosomes in the cytoplasm. B) location of the DNA within the cell. C) large amounts of a waxlike lipids present in its cell wall. D) lack of a cell wall.arrow_forward
- Which of these statements about Streptococcus pyogenes is false?a) It is a Gram-positive coccus occurring in chains.b) Some strains that infect wounds can cause toxic shock.c) Some strains that infect wounds can cause necrotizing fasciitis.d) It can cause puerperal fever.e) A vaccine is available for preventing S. pyogenes infections.arrow_forwardWhat are the common pathogens isolated from stool samples? What is the difference between a coliform bacterium and a noncoliform enteric bacterium? What diagnostic test differentiates Proteus and Providencia species from other Enterobacteriaceae? How would you differentiate between serotypes of E. coli? Are the gram-negative enteric bacilli fastidious organisms? Would they survive well outside of the body? If so, what significance would this have in their transmission? Why is serotyping particularly important in Salmonella infections and typhoid fever?arrow_forwardDifferent strains of Streptococcus pyogenes have different virulence factors, giving these microbes much versatility. Virulence factors include which of the following? Choose one or more: A.A capsule that, when thick, will help the organism avoid phagocytosis by macrophages B.A cell wall containing lipoteichoic acid, thought to facilitate adherence to pharyngeal epithelial cells C.Enzymes that lyse blood cells (streptolysins) D.The production of several endotoxins called streptococcal pyogenic endotoxins (SPEs)arrow_forward
- Which of these statements about tularemia is false?a) It can be contracted from muskrats and bobcats.b) Biting insects and ticks can transmit the disease.c) The causative organism has growth requirements similar to those of E. coli.d) A steep-walled ulcer at the site of entry of the bacteria andenlargement of nearby lymph nodes is characteristic.e) It can be treated effectively with antibiotics.arrow_forwardWhich of the following bacterial species is considered normal flora of the mouth? O 1) Streptococcus mutans 2) Escherichia coli 3) Klebsiella pneumoniae 4) Staphylococcus epidermidisarrow_forwardStaphylococcus aureus can be responsible for all of the following conditions excepta) impetigo. b) food poisoning.c) toxic shock syndrome. d) scalded skin syndrome.e) athlete’s foot.arrow_forward
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