Microbiology: An Introduction
11th Edition
ISBN: 9780321733603
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: Benjamin Cummings
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Textbook Question
Chapter 25, Problem 4A
Which diseases of the gastrointestinal tract can be acquired by swimming in a pool or lake? Why are these diseases not likely to be acquired while swimming in the ocean?
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There have been many cases of human
infection with Salmonella caused by contact (or
ingestion) with raw or undercooked chicken.
This is an example of which type of microbial
source for foodborne illness?
A food animal - infection or colonization
during its lifetime
Contamination by human or animal feces
during growing, harvesting, washing,
transport, or storage
Contamination by naturally occurring
environmental organisms from soil or other
sources
None of the other four answers are correct
Contamination by human microbiota or
pathogens during handling & preparation
Which of the following is NOT true about the transmission of diseases of the digestive system?
Which option is the answer:
1. Many are transmitted in food and/or water
2. The fecal-oral transmission cycle can be broken by proper food preparation and storage, and handwashing
3. The fecal-oral transmission cycle can be broken by proper sewage disposal and disinfection/filtration of drinking water
4. Some are transmitted from person to person directly or indirectly via the fecal-oral route
5. None of the other four answers (All are true)
Which of the following statements about the microbiota of the intestines is false?
1)The bacterial population in the small intestine is sparse compared to that of the colon
2)Aerobes outnumber anaerobes 100 to 1
3)Bacteria in the intestines aid in the digestion of food substances
4)None of these choices are false
Chapter 25 Solutions
Microbiology: An Introduction
Ch. 25 - Complete the following table:Ch. 25 - Complete the following table:Ch. 25 - DRAW IT Identify the site colonized by the...Ch. 25 - Prob. 4RCh. 25 - Prob. 5RCh. 25 - Explain how the following diseases differ and how...Ch. 25 - Prob. 7RCh. 25 - Complete the following table:Ch. 25 - Look at life cycle diagrams for human tapeworm and...Ch. 25 - Prob. 1MCQ
Ch. 25 - Prob. 2MCQCh. 25 - Prob. 3MCQCh. 25 - Gastric ulcers are caused by a. stomach acid. b....Ch. 25 - Microscopic examination of a patients fecal...Ch. 25 - Prob. 6MCQCh. 25 - Identification is based on the observation of...Ch. 25 - Prob. 8MCQCh. 25 - Prob. 9MCQCh. 25 - This microbe is frequently transmitted to humans...Ch. 25 - Why is a human infection of trichinella considered...Ch. 25 - Complete the following table:Ch. 25 - Match the foods in column A with the microorganism...Ch. 25 - Which diseases of the gastrointestinal tract can...Ch. 25 - Prob. 1CAECh. 25 - Prob. 2CAECh. 25 - Prob. 3CAECh. 25 - Three to 5 days after eating Thanksgiving dinner...
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- Which of the following is NOT true about periodontal disease? It is an infection of the teeth that leads to destruction of the dentin and pulp inside the tooth Periodontal pockets of infection and inflammation form between tooth roots and gums (gingivae) Disease process begins with plaque on tooth surface irritating gums (gingivae) The primary etiologic agent is the bacterium Porphyromonas It is an infection of the gums (gingivae) and bone that hold teeth in placearrow_forwardMany consider cholera as the most severe form of gastroenteritis. Why do you think this is so?arrow_forwardIn late November and early December, a hospital in western Florida started to see a spike in the number of cases of acute gastroenteritis-like symptoms. Patients began arriving at the emergency department complaining of excessive bouts of vomiting and diarrhea. They also complained of abdominal pain and cramping, and most were severely dehydrated. Alarmed by the number of cases, hospital staff made some calls and learned that other regional hospitals were also seeing 10 to 20 similar cases per day. 1) What are several possible causes of this outbreak? 2) In what ways could these cases be linked, and how could any suspected links be confirmed?arrow_forward
- what causes gut bacteria? what is the treatment for it? what are the symptoms, if someone is infected with this backteria?arrow_forwardA group of office workers has a party catered by ABC Catering. There is a build--your-own salad bar with lettuce and a variety of toppings. Two days after the party 60% of the attendees have nausea, vomiting, and diarrhea. An investigation by the county health department shows that the ABC Catering employee who prepared the salad bar ingredients was ill with the same gastrointestinal issues as the office workers. The employee used the same sink to wash his hands after going to the bathroom and to rinse the lettuce for the salad bar. Match the virus to the description to arrive at the most likley diagnosis for this outbreak. 1. This virus causes gastreoenteritis, but it mainly affects children, and immunity is life-long. So it is not the likely cause of this outbreak. 2. This virus is transmitted by the fecal-oral route, but it does not cause the signs and symptoms seen in…arrow_forwardWhich bacteria in the Family Enterobacteriaceae are true entericpathogens and which ones are opportunists?arrow_forward
- Many people in the developing world die of a water-borne illness simply because they do not have access to clean drinking water. This includes diseases such as cholera, from fecal contaminated water. Cholera is transmitted by which of the following routes? Ovector transmission vehicle transmission droplet transmission contact transmissionarrow_forwardIf 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?arrow_forwardWhich statement among A-E is false concerning digestive system and gastrointestinal (GI) tract infections? A) O The more severe forms of gastroenteritis, like dysentery, produce abdominal cramps, fever, and blood. B) ORehydration and electrolyte replacement are typically the treatment for those with GI tract infections. C) O Invasive GI tract infections are caused by intracellular pathogens such as Salmonella and certain E coli. D) O Among protozoal pathogens, Giardia is a major cause of gastroenteritis. E) O Most GI tract infections are due to viruses. F) OA-E are all correct.arrow_forward
- Which of the following diseases of the digestive system can be caused by bacteria? Group of answer choices appendicitis ulcers all of these diarrheaarrow_forwardE.coli is part of the normal microbiota of the intestines and can cause gastroenteritis. Explain why this one bacterial species is both beneficial and harmful.arrow_forwardSome bacteria, protozoa, and viruses that cause foodborne illness are: E.coli, Salmonella Norovirus Staphylococcus aureus Clostridium botulinum Campylobacter Clostridium perfringens Hepatitis A. Giardia (mainly water) Listeriosis Select two (2) of the foodborne illnesses listed above and report the following information for each. Disease name and whether it is a bacteria, protozoa, or virus Type of contamination (infection or intoxication) Infectious pathway Possible sources and foods affected Symptoms Incubation period Treatment Current Statistics, how many affected, where, when etc.arrow_forward
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