Q: What component of the gram-negative cell has endotoxinproperties?
A: Endotoxins are part of the outer membrane of the cell wall of Gram-negative bacteria. Endotoxin is…
Q: Understand the pathogenesis of cholera.
A: The biological mechanism that produces a diseased state is called pathogenesis. This term also shows…
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: Which coliform bacteria are the most difficult to distinguish from the Salmonella or Shigella…
A: In humans, Shigella and Salmonella are microorganisms that cause gastroenteritis. Salmonella is the…
Q: What features of urinary system help to prevent colonization by microbes?
A: The Human Body has specialized systems for performing various vital functions of the body. One of…
Q: Besides enterotoxin, does V. cholerae possess an endotoxin? If it does, is the toxin a significant…
A: Cholera is an infection by the bacterium Vibro cholerae, it causes fluid loss from the body in the…
Q: Which bacteria in the Family Enterobacteriaceae are true entericpathogens and which ones are…
A: Prokaryotes are the primitive organisms that were the first to develop and harness life on Earth.…
Q: What virulence factors of each species of Enterobacteriaceae?
A: Enterobacteriaceae is a family of Gram-negative, facultatively anaerobic, non-spore-forming rods.
Q: Which of the following bacteria is associated with gastric and duodenal ulcers? Select one: a.…
A: Ulcers originates when the acid present in stomach start damaging the digestive tract lining.…
Q: Helicobacter pylori survives in the acidic environment of the human stomach, but this organism is…
A: Helicobacter pylori is a neutrophilic bacteria i.e. it loves the neutral pH and is able to survive…
Q: Why do botulism and tetanus show such opposing symptoms?
A: Botulism and tetanus are two neurological disorders in man and animals caused by the neurotoxins…
Q: Explain how Vibrio cholerae causes cholera.
A: Vibrio cholerae is a species of flagellated bacteria that causes the disease cholera. Cholera is…
Q: What Enterobacteriaceae are of medical significance?List and describe the infections caused by these…
A: Bacteria, Virus, Fungus, and Parasites are the four agents that infect human body. Even though most…
Q: Indicate some possible ways in which foods may become contaminatedwith enteric organisms.
A: Contamination is the state where the substance is no longer suitable for use. The contamination of…
Q: How can we prove the pathologic or clinical effects of V. cholerae are due only to the production of…
A:
Q: Bacteria that causes cholera are Select one: O a. Spirochete O b. Spirilla O c. Vibrios O d. Cocci
A: There are large number of bacteria which cause disease in human;
Q: Why do gram-positive bacteria not produce endotoxins?
A: ExotoxinsThey are proteineous substances that are produced within the bacterium as a byproduct of…
Q: What are the causative agent mode of transmission and clinical symptoms of enteroaggregative E.coli…
A: Enteroaggregative E.coli - Causative agent - Escherichia coli EAEC is a pathotype of E. coli.
Q: What shape does Vibrio cholerae have?
A: Bacteria are member of a large group of unicellular microorganisms. Bacteria have cell walls but…
Q: What is the normal habitat of enterococcus faecium? Provide an explanation for its recovery from…
A: Bacteria are prokaryotes with chromosomes consisting of a single closed DNA circle and no…
Q: What are the predominant proteins present inbeans? How are these proteins precipitated by an acid?
A: Proteins are macromolecules that contain amino acid residue which is connected by a Peptide bond.
Q: Does Enterococcus faecium likely infect the diseased organ through the urinary tract or through the…
A: There are many different types of pathogenic bacterial types that cause infection to the human body.…
Q: What are the implications if your drinking water is contaminated with coliforms? And give three…
A: Public water systems are required to deliver safe and dependable consuming water to their clients 24…
Q: What are THREE indications of a high coliform counts in a food product?
A: The coliform count is an indicator of hygiene and a high level of coliform generally depicts…
Q: For which one of the following enteric illnesses is a chronic carrier state most likely to develop?…
A: Chronic carrier state refers to acts as the carrier or reservoir of the pathogen and the carrier has…
Q: What was the common treatment for cholera beginning in the 1830s? Why was this not useful in large…
A: We know that, Cholera is a disease caused by the bacteria Vibrio cholerae and it occurs through…
Q: Why are most pathogens mesophilic?
A: The mesophilic bacteria include the group that grows at moderate temperature i.e. 20 C to 45 C. The…
Q: Compare and contrast two named bacterial pathogens that can cause diarrhoea and dysentery
A: Dysentery is diarrhea associated with blood (plus or minus mucus) and represents more invasive…
Q: Why wouldn’t antibiotics work as therapy for botulism?
A: Botulism is a bacterial-based disease caused by the bacterium Clostridium botulinum which is an…
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: How can we prove the pathological and clinical effects of cholera are caused by the production of…
A: Cholera is an infectious disease that cause severe watery diarrhea, which can lead to dehydration…
Q: If the bacterium in question during the perlo outbreak had beenE. coli instead of S. aureus, how…
A: The perlo outbreak was caused by Staphylococcus aureus that causes food intoxication and had led to…
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: What was the miasmic mode of transmission of cholera? What evidence did John Snow accumulate that…
A: Cholera was a deadly disease transmitted through bacteria. Chlorella is caused by vibrio cholera.…
Q: What are some common organisms that cause food poisoning?
A: Introduction:- Food poisoning, often known as foodborne illness, is a condition brought on by…
Q: The following are symptoms of Cholera, except. Select one: O a. Watery diarrhea O b. Cough c.…
A: Cholera is a bacterial diarrhoeal infection, caused by ingesting contaminated food or water. The…
Q: What role do salt and sugar individually play in treatment cholera?
A: Each component plays a special role that makes ORS effective. The major role of sugar that play in…
Q: Characterize and give a brief description of the following bacteria: Salmonella enteritis…
A: A bacterium, Salmonella enteritis's, can be inside perfectly normal-appearing eggs, and if the eggs…
Q: What characteristics of Listeria make it a frequentcause of foodborne illness?
A: Foods are important source to obtain energy. The food components include carbohydrates, lipids,…
Q: The following are symptoms of Cholera, except. Select one: O a. Watery diarrhea O b. Cough O c.…
A: Each disease in humans is accompanied by certain signs and symptoms. Symptoms are subjective…
Q: What diseases are caused by enterobacter aerogenes? Is Enterobacter aerogenes Gram negative or…
A: Introduction: Enterobacter is considered an opportunistic pathogen. It is found in soil, water,…
Q: Every year, supposedly safe municipal water supplies causeoutbreaks of enteric illness.a. How in the…
A: Water pathogens enter the water sources by faecal contamination. When the infected person or animal…
Q: How does Clostridium Perfringens contribute to the virulence of the pathogens, and give one specific…
A: Food contaminated by the bacterium Clostridium perfringens causes food poisoning. It is responsible…
Q: What is the most common cause of epidemic waterborne diarrheal disease?
A: Diarrhea is one of the most public health issues in developing countries. The symptom of infections…
Besides pathogens that cause typhoid fever, cholera, and dysentery, what other pathogens would be
indicated by the presence of coliforms?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Why does Helicobacter pylori cause ulceractions in the lining of the Stomach? 1)The microbes secrete a toxin that prevents the host from detecting invasion of the microbe and thus allows it to thrive in the stomach and damage the host cells. 2)After invasion of the microbe in the cells lining the stomach, they are no longer able to produce mucous to protect the host cells from acid erosion 3)The microbe produces an enzyme that causes the cell to produce potent digestive enzymes that erode the stomach lining. 4)Once the microbe has entered the stomach, it releases digestive enzymes that degrade the mucous secreting cells.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 virulence factors of each species of Enterobacteriaceae?
- What are the virulence factors of Salmonella typhi? Explain each factors in simple terms.Which coliform bacteria are the most difficult to distinguish from the Salmonella or Shigella pathogens? What is the primary characteristic used to differentiate them?While it is true that not all coliforms are pathogenic under normal conditions, please name two situations that can occur due to infection by coliforms under abnormal conditions (when they are present where they are not supposed to be or when their numbers exceed acceptable levels)
- There is an outbreak of enteric fever in a small Community. What is the causative bacteria; and how will you Isolate and Identify the causative bacteria.Which of the following bacterial species is considered normal flora of the mouth? O 1) Streptococcus mutans 2) Escherichia coli 3) Klebsiella pneumoniae 4) Staphylococcus epidermidisAll of the following pertain to listeriosis, except 1) intrauterine infection usually results in fetal death. 2) enterotoxin of the organism causes symptoms. 3) it causes a serious septicemia and meningitis in the elderly, immunocompromised, and infants. U 4) it causes symptoms of fever, diarrhea, and sore throat. 5) adequate pasteurization and thorough cooking of food can improve prevention.
- Explain how the body (including cells, organs, organ systems) is affected by the bacterium called Neisseria meningitidis? Are there any long-term effects caused by the bacterium, even after recovery?Besides enterotoxin, does V. cholerae possess an endotoxin? If it does, is the toxin a significant virulence factor?If there is a causal relationship between the presence of H. pylori and ulcers, how might you explain that 50% of the patients with a normal endoscopic examination were infected with the bacteria?