Question 1 (1 point) When does a disease outbreak become a major problem? When the average latency period < average incubation period When transmission networks are local but not global When the level of infectiousness of the virus is low When the average latency period = average incubation period
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A disease outbreak becomes a major problem when it spreads widely and rapidly. Show more…
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4. Infectious disease is best defined as: a. harmful development in a microscopic organism. b. alteration of the organism's normal functioning. c. disease caused by an invading pathogen. d. body not capable of carrying on its normal functions. 5. Which of the following best defines pathogen? a. Extent of pathogenicity b. A microscopic organism (plant or animal) c. An organism capable of causing disease d. All of these are correct. 6. The capacity and strength of the disease to produce severe and fatal cases of illness is its: a. Variolation. b. virulence. c. pathogenicity. d. pathogenesis. 7. The capacity of a microorganism to enter and grow in or upon tissues of the host is called its: a. etiology. b. pathogenesis. c. invasiveness. d. virulence. 8. Which of the following stages is associated with the incubation period? a. Stage of susceptibility b. Stage of presymptomatic disease c. Stage of clinical disease d. Stage of recovery, disability, or death. 9. A description of communicable disease prevention and control may include all of the following, EXCEPT: a. remove, eliminate, or contain the cause or source of infection. b. disrupt and block the chain of disease transmission. c. protect the susceptible population against infection and disease. d. All of these could be part of a description of communicable disease prevention and control. 10. True or False? Chronic diseases and conditions are not typically caused by pathogens.
Madhur L.
60. Although sporadic outbreaks of measles occur in the United States, the disease is considered nonendemic. What differentiates measles from endemic diseases, such as chickenpox? a. Endemic diseases exhibit higher numbers of cases than a sporadic outbreak. b. Diseases that are not endemic lack a reservoir in the area. c. Endemic diseases do not exhibit sporadic outbreaks. d. Diseases that are not endemic remain in reservoirs without infecting humans. 61. Which of the following would indicate efforts to control a disease are working? a. The disease becomes endemic. b. The disease prevalence increases. c. The disease incidence decreases. d. Outbreaks of the disease only occur every other year. 62. Which of the following statements describes one of the three steps of surveillance used for infectious diseases? a. Patients with infectious diseases are required to be seen by a physician at the CDC. b. Physicians are required to submit all patient records electronically to the CDC for review. c. Patient charts are reviewed by an infection control practitioner when an infectious disease is suspected. d. Incidence data is collected in all cases of bacterial infections within the United States.
Adi S.
Q1.21. Will the disease spread through the population? Why or why not? No, because R0 < 1. No, because people stay sick for less than 5 days, which is too short a recovery time. Yes, because the population is densely packed into the village at 1,000 people / km2. Yes, because R0 < 1. Q1.22. A higher population density, faster transmission rate, and longer infectious period each cause a disease like influenza to spread to more people. Which of the following statements correctly explain why? Check all that apply. At high densities, infected individuals encounter more individuals who are also infected. At high transmission rates, an infected-susceptible encounter is more likely to result in an infection. With long recovery, an infected individual is contagious longer and can infect more susceptibles.
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