26. Toxins (e.g., hemolysins) secreted by bacterial eell into the infected tissu

Question

26. Toxins (e.g., hemolysins) secreted by bacterial eell into the infected tissue are a) characterized b) characterized as having a biologically active portion (A c) characterized as having a binding portion ( d) all of the above are characteristics of toxins as having a strong specificity for their target cell 27, Mixed infections are Polymierobial. Tor F 28, Secondary infections are defined as another infection by the same microbe. T or F , A live animal other than human) that transmits an infectious agent from one host to"nother is called a vector T or F 30. Biological Vectors actively participate in a pathogen's life cycle T or F 31. Mechanical Vectors transport infectious agent without being infected T or F 32, Communicable Disease; when an infected host can transmit the infectious agent to another host and establish infection in that host. T or F 33. Nosocomial Infections are acquired during travels to a foreign country. T or P 34, Stringent measures to prevent the spread of hospital infections from patient to patient, from patient to worker, and from worker to patient are universal precautions. T or F 35, Epidemiology is the study of the frequency and distribution of disease and health-related factors in human populations T or F illance is the collecting, analyzing, and reporting data on rates of occurrence, mortality morbidity and transmission of infections. Reportable, notifiable diseases must be reported to authorities, Centers for Disease Control and Prevention (CDC) in Atlanta, Georgia, which is the principal government agency responsible for keeping track of infectious diseases nationwide. T or F 37. Incidence total number of existing cases with respect to the entire population usually represented 38. Prevalence measures the number of new cases over a certain time period, as compared with the 39. Which microorganism does not cause a latent infection? by a percentage of the population. T or F general healthy population. T or F a) Herpes simplex b) Hepatitis B c) HIV d) Polio el Herpes zoster Chapter 18 40. Concerning Staphylococcus aureus a) S. aureus has the ability to withstand extremes of salt, pH, temperature, and desiccation b) S. aureus's ability to survive extreme environmental conditions contributes to its' pathogenicity c) all of the above d) none of the above 41. Staphylococcus aureus causes; a) cutaneous diseases systemic diseases diseases d) all of the above e) none of the above

Explanation / Answer

26) all of the above.

27) true.polymicrobial infection includes various infectious agents which may be called se complex, mixed, concurrent.

28) false. It is caused due to the change in immune system due to first treatment.For example; when antibiotics taken to treat an infection caused by bacteria an yeast infection take place after it.

29) true.

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