Microbiology with Diseases by Body System (4th Edition)
4th Edition
ISBN: 9780321918550
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
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Chapter 14, Problem 4TMW
Why is mutated Streptococcus pneumoniae, which cannot make a capsule, unable to cause pneumonia?
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Chapter 14 Solutions
Microbiology with Diseases by Body System (4th Edition)
Ch. 14 - Prob. 1TMWCh. 14 - A Deadly Carrier In 1937, a man employed to lay...Ch. 14 - Prob. 2TMWCh. 14 - Prob. 3TMWCh. 14 - Why is mutated Streptococcus pneumoniae, which...Ch. 14 - Prob. 5TMWCh. 14 - Prob. 6TMWCh. 14 - TB in the Nursery In the early fall, a neonatal...Ch. 14 - Why is an acute disease with a high rate of...Ch. 14 - Prob. 3CCS
Ch. 14 - Prob. 1EDCSCh. 14 - Prob. 8TMWCh. 14 - Prob. 1MCCh. 14 - Prob. 2MCCh. 14 - Prob. 3MCCh. 14 - The most frequent portal of entry for pathogens is...Ch. 14 - Prob. 5MCCh. 14 - Prob. 6MCCh. 14 - Prob. 7MCCh. 14 - Prob. 8MCCh. 14 - Prob. 9MCCh. 14 - Prob. 10MCCh. 14 - Which of the following statements is the best...Ch. 14 - Prob. 12MCCh. 14 - Prob. 13MCCh. 14 - Prob. 14MCCh. 14 - Prob. 15MCCh. 14 - Prob. 1FIBCh. 14 - Fill in the Blanks 2. Infections that may go...Ch. 14 - Prob. 3FIBCh. 14 - Prob. 4FIBCh. 14 - Prob. 5FIBCh. 14 - Prob. 6FIBCh. 14 - Prob. 7FIBCh. 14 - Prob. 8FIBCh. 14 - Prob. 9FIBCh. 14 - Prob. 10FIBCh. 14 - Prob. 1SACh. 14 - Prob. 2SACh. 14 - Prob. 3SACh. 14 - List Kochs four postulates, and describe...Ch. 14 - Prob. 5SACh. 14 - Prob. 6SACh. 14 - Describe the parenteral route of infection.Ch. 14 - In general, contrast transient microbiota with...Ch. 14 - Contrast the terms infection and morbidity.Ch. 14 - Prob. 10SACh. 14 - Each map below shows the locations (dots) of cases...Ch. 14 - Prob. 2VICh. 14 - Explain why Ellen H., a menopausal woman, may have...Ch. 14 - Prob. 2CTCh. 14 - A 27-year-old woman went to her doctors office...Ch. 14 - Over 30 children younger than three years of age...Ch. 14 - Prob. 5CTCh. 14 - Prob. 6CTCh. 14 - Corals are colonial marine animals that feed by...Ch. 14 - If a mutation occurred in Escherichia coli that...Ch. 14 - Using the following terms, fill in the following...
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- Different 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_forwardWhy does Mycobacterium tuberculosis direct macrophages to engulf them?arrow_forwardWhy is it clinically important to distinguish S. pneumoniae from otherα-hemolytic streptococci?arrow_forward
- Your 3-month-old son is taken to the emergency room because he has a fever and difficulty breathing. The child is admitted to intensive care because the doctor thinks he has a type of pneumonia whose name you do not recognize. The doctor reports that the hospital has seen a dozen pediatric cases of this pneumonia in the past week. The doctor swabs your son’s nose but says the results won’t be back for several days. In the meantime, they will give supportive therapy, including an inhaled spray, but no antibacterial drugs. The doctor feels sure the child will recover. 1. What kind of pneumonia is it? 2. Why aren’t they giving him antibacterial drugs? 3. How can the doctor be sure what’s causing the pneumonia if she doesn’t yet have test results? 4. Has the other child (a 3 years-old) been exposed to the infection?arrow_forwardIs it as effective to take two antibiotics sequentially as it is to take them simultaneously, as long as the total length of time that they are both taken is the same? Explain.arrow_forward13) which of the following conditions is caused by a bacterium related to the bacteria that causes tuberculosis? It results in overgrowths on potentially all places on the body. a) leprosy b) none of these are caused by bacterium c) squamous cell carcinoma d) melanomaarrow_forward
- How does Mycobacterium tuberculosis gain access through that preferred portal of entry Explain how the Mycobacterium tuberculosis is able to evade innate human host defenses that prevent this from occurring. discuss specific components of your pathogen. (Examples may include capsules, cell wall components, exoenzymes, antigenic variation and penetration of the host cell cytoskeleton.)arrow_forwardWhy is transmission of cytomegalovirus (CMV) through blood components not a significant risk to most recipients? Question 10 options: a) Most recipients are CMV-positive. b) Most recipients are CMV-negative. c) The CMV cannot tolerate cold storage temperatures. d) None of the above.arrow_forwardA child presents with yellow crusting lesions on the arms and legs. It is determined that this is being caused by Streptococcus pyogenes. In what ways is the organism Streptococcus pyogenes different from Staphylococcus aureus?arrow_forward
- What clinical features distinguish bacterial pneumonia from atypical pneumonia?arrow_forwardWhich of these statements concerning cryptococcal meningoencephalitis is true?a) It is caused by a yeast with a large capsule.b) It is a disease of trees transmissible to humans.c) It typically attacks the meninges but spares the brain.d) Person-to-person transmission commonly occurs.e) It is seen only in persons who are immunocompromised.arrow_forwardA 9 year old boy with cystic fibrosis – a genetic disease that causes a number of problems, including the build-up of thick sticky mucus in the lungs- complained of increasing fatigue, shortness of breath and worsening cough. When his mother took him to the doctor, she mentioned that his cough was a blue green color. His doctor immediately suspected a lung infection by Pseudomonas aeruginosa a common complication of cystic fibrosis. A sputum was collected and sent to the clinical laboratory. In the Clinical laboratory, the sample was plated onto Mac Conkey agar and blood gar and incubated. Mucoid colonies surrounded by bluish green color grew on both types of agar media. The colonies on Mac Conkey had no pink coloration, so the medical technologist concluded that the cells did not ferment lactose. She noted that the blue green color on the agar plates and in the sputum, knowing that P.aeruginosa makes several pigmented compounds that give rise to colors ranging from yellow to blue. One…arrow_forward
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