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Walden PUBH6170 quiz 6

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Question;Question 1Bacterial pathogens cause symptoms of a disease by invading host cells or by producing toxins that damage host cells.AnswerTrueFalse1 points Question 2Prions are infectious proteins that cause normal proteins in the brain to misfold.AnswerTrueFalse1 points Question 3Most surveillance systems are passive and disease specific.AnswerTrueFalse1 points Question 4An advantage of the systems-based approach is the recognition that studies relevant to environmental change and infectious disease are embedded within a wider web of interactions.AnswerTrueFalse1 points Question 5Which of the following sexually transmitted diseases is transmitted by a bacterial infection?Answerchlamydiagenital herpeshepatitis Bgenital wartstrichomoniasis1 points Question 6Which of the following is not true regarding gonorrhea?AnswerIn addition to the genitalia, the disease can be transmitted to the mouth, throat, and eyes.Antibiotic-resistant strains of N. gonorrhoeae have recently emerged.Most infected women do not show symptoms of infection.Unlike chlamydia, gonorrhea cannot be transmitted to a child during birth.Symptoms in infected males include painful urination and a discharge of pus from the urethra.1 points Question 7Which of the following sexually transmitted diseases is characterized by three distinct phases of infection?Answerchlamydiagenital wartshepatitis Bsyphilisgonorrhea1 points Question 8For an avian virus to become infective to humans, it is a requirement that it first "mix" in a swine host.AnswerTrueFalse1 points Question 9Which of the following is not true regarding syphilis?AnswerSymptoms of the tertiary phase include damage to the cardiovascular and nervous systems.T. pallidum, which causes syphilis, can cross the placenta and cause the death of the unborn child.The symptoms of syphilis can be treated, but there is no cure for this disease.The primary phase of syphilis is characterized by the presence of chancres at the infection site.In some infected individuals, the infection may cease after stage two and not progress into stage three.1 points Question 10Which of the following sexually transmitted diseases can be cured by the use of antibiotics?Answergenital herpesAIDSpubic licegonorrheahepatitis B1 points Question 11The CDC has the primary authority during an outbreak, and will routinely provide aid during an outbreak.AnswerTrueFalse1 points Question 12Probiotics include all but which of the following?AnswerYogurt with live culturesMilk fortified with Lactobacillus acidophilusOrange juice fortified with calciumFermented dairy products1 points Question 13Which of the following statements is not true?AnswerInfectious diseases are commonly grouped according to scientific taxonomy or clinical symptoms, which correspond reliably to environmental drivers.Transmission models elucidate the relationships governing the creation and distribution of risks by disentangling individual- and population-level effects.Altering the pattern of connections between exposed and unexposed individuals may impact the level of infection within a population more so than altering the exposure status of individuals in that population.If a core group is sustaining infection in a larger group, targeting interventions based on individual-level risk factors will not, in general, address the principal cause of disease.1 points Question 14Prions:Answerare proteins that are capable of replicating themselves.are believed to be the pathogen that causes variant Creutzfeldt-Jakob disease.are normal brain proteins that have an incorrect shape.are resistant to high temperatures and drying.all of the above1 points Question 15An emerging infectious disease is defined as a new, re-emerging, or drug-resistant infection whose incidence in humans has increased within the past two decades or whose incidence has threatened to increase within the near futureAnswerTrueFalse

 

Paper#62935 | Written in 18-Jul-2015

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