Q: Why are the staphylococci among the leading causes of healthcare-associated infections?
A: Microbes are the tiny organisms that cannot be seen with naked eyes. Some microbes cause diseases…
Q: How can activity of a hemolytic exotoxin be detected?
A: Introduction Toxins can be of two type on the basis of their secretion viz. Endotoxins and…
Q: . Explain the role of H. pylori in the pathogenesis of peptic ulcers. Which populations are most…
A: Helicobacter pylori requires 4 steps to colonize the host stomach: Survival in acidic environment…
Q: What is the etiologicalagent and the mainmanifestations of cholera?
A: Cholera is the contagious bacterial disease that usually spreads through the ingestion of…
Q: What is the difference between an emerging and a reemerginginfectious disease?
A: An infectious disease is the one that is caused by pathogenic microbes. These microbes can be…
Q: What are all the different types of infections the following antibiotic resistant microbes…
A: Antibiotic resistance in bacteria occurs when germs like bacteria develop the ability to defeat the…
Q: How did Escherichia coli become pathogenic?
A: Escherichia coli or E. coli can be described as the gram negative, facultative anaerobic, rod shaped…
Q: Why is it clinically important to distinguish S. pneumoniae from otherα-hemolytic streptococci?
A: S. pneumoniae: Streptococus pneumonia (pneumococcus) is a gram positive bacteria, which is…
Q: What is bacteremia? Is it dangerous for humans?
A: Bacterimia is a bacterial infection that spreads to the bloodstream. It can be serious as it can…
Q: Identify the most common reservoir and vector forLyme disease in the United States. How can the…
A: The disease characterized by ticks and affects both animals and a human is defined as ‘Lyme…
Q: List three species of Betaproteobacteria that are known to behuman pathogens.
A: Introduction Proteobacteria is the separate phylum of gram negative bacteria which contain purple…
Q: What are the main reservoirs of nosocomial infections?
A: Most frequent infection sites related to medical building infection embrace tract infection…
Q: What is Salmonella pathogenicity island?
A: Pathogenicity island is a distinct class of genomic island that is acquired by the microorganisms.…
Q: Why do patients with XLA tend to contract infections associated withbacteria, more than viral…
A: Microorganisms or microbes are creatures that are only visible under the microscope. Various…
Q: Why can Koch’s postulates not be used to identify the causes of diseases due to polymicrobial…
A: Koch's postulates are four criteria that denote the causative relationship between the microbe and…
Q: How do STEC strains of Escherichia coli differ from otherpathogenic E. coli?
A: Prokaryotes are the primitive organisms that were the first to develop and harness life on Earth.…
Q: Which bacterial infections present the most concern and challenge for the public health agencies?
A: There are several species of bacteria that are pathogenic to humans and cause a wide number of…
Q: How does the E. coli strain 026:H11 damage its victims?
A: The enterohaemorrhagic E. coli (EHEC) serotype O26 is the second most common enterohaemorrhagic E.…
Q: Compare and contrast the virulence factors and signs and symptoms of infections with the four main…
A: E.coli also known as Escherichia coli is a rod shaped coliform bacteria which generally lives in…
Q: Name four different pathogenic groups of Escherichia coli.
A: Escherichia coli Bacteria normally leaves in the intestine of animals including Humans. Most of them…
Q: What is Escherichia coli infection?
A: Bacteria are prokaryotic organisms that have undefined nucleus and nuclear membrane. Most of the…
Q: How does one can differentiate S. pneumoniae from E.coli
A: Streptococcus pneumoniae is a gram positive diploccoci whereas E.coli is a gram negative rod shaped…
Q: What two separate diseases are the main COPD diseases? Give background on each disease.
A: COPD (chronic pulmonary obstructive disease) is a condition when the respiratory tract becomes…
Q: What are the epidemiology and risk factors of the Black Plague?
A: Black plague is a disease caused by Yersinia pestis bacterium. It affects rodents, humans, and other…
Q: Why does Balantidium coli have the greatest clinical impact? What and how will you eradicate this…
A: Balantidium coli is parasitic species which causes diseases .It belongs to domain Eukaryota,phylum…
Q: Why do epidemiologists acquire population-based data aboutinfectious diseases?
A: A specific irregular condition that negatively affects the function or structure of whole or portion…
Q: What is a reasonable treatment for an E. coli infection
A: Interferons are used against viruses, so they are widely used for the treatment of chronic viral…
Q: What makes bacterial diseases such as Clostridium botulinum, Clostridium perfringens & Clostridium…
A: 1.Clostridium botulinum is an anaerobic, rod-shaped spore forming bacterium that produces a protein…
Q: What are the common pathogens isolated from stool samples? What is the difference between a coliform…
A: A pathogen is living thing that causes infection. Infections and microorganisms can be microbes,…
Q: Is meticillin-resistant Staphylococcus hospital-acquired infection? aureus (MRSA) the only major
A: Introduction - Staphylococcus aureus is a Gram-positive, round-shaped bacterium that belongs to the…
Q: hat is epidemiology of RMSF in the USA described today?
A: Rocky Mountain spotted fever (RMSF) is an infection caused by the bacterium Rickettsia rickettsii…
Q: Where do the organisms that cause staph and strep infections typically come from? What causes them…
A: Strap infections are mainly caused by staphylococcus bacteria while strep infections are caused by…
Q: Which antibiotic listed would be most effective against E Coli?
A: Kirby-Bauer is a type of disk diffusion susceptibility test, which is used to determine the whether…
Q: Describe three common characteristics of pathogenic mycobacteria.
A: Step1 Mycobacteria includes pathogens that are known to cause serious disease in mammals such as…
Q: what are the selective media for Vibrio cholerae
A: A type of media which allows the growth of only specific microbes or the microbe of interest and…
Q: pidemiology and control of Vibrio, Campylobacter, and Helicobacter?
A: Once the bacterial cells enter the stomach, the acidic environment of the stomach kills most of the…
Q: Justify the treatment of E. coli O157:H7 in a manner different than for other strains of the…
A: E coli O157:H7 causes a severe intestinal infection in humans. It is the most common strain to cause…
Q: Is Catalase is a virulence factor?
A: Catalase is a compound which is present in the liver that separates harmful hydrogen peroxide into…
Q: Differentiate among the major enteric pathologies seen amongvarious strains of E. coli.
A: Escherichia coli is a coliform bacterium, that is part of the Enterobacteriaceae family. It is a…
Q: What is virulence factor in microbiology?
A: The molecules produced by bacteria, viruses, fungi, and protozoa that enable them to invade host,…
Q: What is Creutzfeldt–Jakob disease ? Does it affect human ?
A: A neurodegenerative disorder is a nervous disease, which is caused due to progressive damage of the…
Q: How does Escherichia coli O157:H7 end up in groundbeef? To what class of pathogenic E. coli does…
A: Escherichia coli is a common bacteria which primarily resides in the gastrointestinal tract of…
Q: Why is Alzhemier's disease the 6th leading cause of death in the United States right now?
A: Alzheimer's is a progressive disease, where dementia symptoms gradually worsen over a number of…
Q: Justify treating E. coli O157:H7 differently from other strains ofthe species.
A: E.coli (Escherichia coli), is a type of bacteria that normally lives in your intestines. It’s also…
Q: What are the Five F’s and how do they relate to enteric pathogens?
A: Pathogens are the organisms that are capable of disrupting the normal physiological balance of an…
Q: How does one can differentiate Klebsiella pneumoniae from Salmonella typhimurium
A: Klebsiella pneumoniae is a gram-negative bacteria that cause infections like pneumonia. Salmonella…
Q: How do Koch’s postulates ensure that cause and effect of agiven disease are clearly differentiated?
A: Robot Koch was a famous microbiologist as he studied several bacterial diseases. His postulates…
What are unique features in the epidemiology of E. coli O157:H7
(STEC)?
Step by step
Solved in 2 steps
- While it is true that not all coliforms are pathogenic under normal conditions, please name two situations that can occur due to infection by pathogenic strains.What 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?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.
- This pathogen is usuall foodborne and causes a mostly asymptomic disease. The most common foods associated with it are deli meats and unpasteurized dairy products. It rarely cause meningitis and spsis. It is mainly of concern because it can lead to still birth. This pathogen is a) Stahylococcus aureus b) Streptococci pneumoniae c) Listeria monocytogens d) Streptocpccus pyogenesStaphylococcus 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.What is virulence factor in microbiology?
- Which of the following common causes of healthcareassociated infections is an environmental organism that grows readily in nutrient-poor solutions?a) Enterococcusb) Escherichia colic) Pseudomonas aeruginosad) Staphylococcus aureusName four different pathogenic groups of Escherichia coli.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.