Brock Biology of Microorganisms Chapter 28 Exam Questions With Correct Answers

Brock Biology of Microorganisms Chapter 28 Exam Questions With Correct Answers 1) A disease that is present in unusually high numbers throughout the world is called a(n) A) endemic. B) epidemic. C) sporadic. D) pandemic. - answerD) pandemic. 2) A ________ is a disease that primarily infects animals but can be transmitted to humans. A) nosocomial infection B) zoonosis C) vector infection D) mudurane - answerB) zoonosis 3) An inanimate object that transmits infectious agents between hosts is most appropriately called a A) fomite. B) carrier. C) vector. D) reservoir. - answerA) fomite. 4) Which of the following is NOT a public health measure used to control the transmission of disease? ©SIRJOEL EXAM SOLUTIONS 10/3/2024 9:54 PM A) sanitary water and waste disposal methods B) immunization C) forced quarantine D) genetic engineering - answerD) genetic engineering 5) Which of the following is/are considered (a) direct contact infection(s)? A) syphilis B) gonorrhea C) skin infections D) syphilis, gonorrhea, and skin infections - answerD) syphilis, gonorrhea, and skin infections 6) The onset of a given epidemic is indicated by a sharp rise in the number of cases reported daily over a brief interval. This indicates that the mode of transmission is A) host to host. B) a common source. C) insect vector. D) mechanical vector. - answerB) a common source. 7) Which of the following diseases is NOT normally spread by a common source? A) measles B) foodborne diseases C) waterborne diseases D) cholera - answerA) measles 8) Which of the following is an example of herd immunity? A) Brucellosis is no longer found in farm animals in the United States. B) If 70% of the population is immunized against polio, the disease will be essentially absent from the population. C) Federal law requires that all cattle not immune to anthrax be destroyed. ©SIRJOEL EXAM SOLUTIONS 10/3/2024 9:54 PM D) All farm animals used for food must be immunized against all the common agents of disease that infect humans. - answerB) If 70% of the population is immunized against polio, the disease will be essentially absent from the population. 9) Potential candidates for biological warfare A) are generally gram-negative rather than gram-positive. B) can be virtually any pathogenic bacterium or virus. C) are eukaryotic rather than prokaryotic. D) must be genetically engineered to be effective. - answerB) can be virtually any pathogenic bacterium or virus. 10) The incidence of HIV/AIDS among transfusion recipients has A) increased since the discovery of HIV. B) decreased since the discovery of HIV. C) remained the same since the discovery of HIV. D) never been more than a few individuals per year. - answerB) decreased since the discovery of HIV. 11) Which of the following shows the correct relationship among the epidemiology terms listed? A) prevalence > incidence > mortality B) incidence > prevalence > mortality C) mortality > morbidity > prevalence D) mortality > incidence > prevalence - answerA) prevalence > incidence > mortality 12) Which of the following emergence factors has contributed to the HIV/AIDS epidemic? A) climate change B) rapid pathogen adaptation and change C) increasing travel to endemic areas D) exotic pet and meat trade - answerB) rapid pathogen adaptation and change 13) Treponema pallidum is extremely sensitive to temperature changes and low moisture, thus it is transmitted