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M1 L4 quiz
Question 1
What term best describes the ability of an infectious agent
to cause symptoms of illness among those who are infected?
Answers:
Infectivity
Pathogenicity
Transmissibility
Virulence
Question 2
Which of the following is not a vectorborne infection?
Answers:
Chagas disease
Influenza
Lyme disease
West Nile virus
Question 3
Which of the following respiratory infections is not vaccine
preventable?
Answers:
Haemophilus influenzae type b (Hib)
Legionellosis
Pertussis
Pneumococcus
Question 4
Which of the following infectious diseases has a
human-insect-human cycle of infection?
Answers:
Cholera
Lyme disease
Measles
Rabies
Question 5
What term best describes the ability of an infectious agent
to cause severe disease or death?
Answers:
Infectivity
Pathogenicity
Transmissibility
Virulence
Question 6
What type of infectious agent is thought to cause
Creutzfeldt-Jakob Disease (CJD)?
Answers:
Bacterium
Helminth
Prion
Virus
Question 7
What is the World Health Organization’s recommended
treatment approach for malaria?
Answers:
ACT
DOTS
LLIN
PPD
Question 8
Approximately how many years passed between the first cases
of AIDS were diagnosed in the United States and the time that 10 million people
worldwide were living with HIV?
Answers:
10 years
20 years
30 years
Fewer than 10 million people worldwide have had HIV
Question 9
Which of the following is not an effective way to prevent
HIV infection?
Answers:
Abstinence
Condoms
Female circumcision
Monogamy / faithfulness
Question 10
Which world region of the ones listed below has the highest
prevalence (%) of HIV infection among adults 15 to 49 years old?
Answers:
the Americas
East Asia
North Africa and the Middle East
South and Southeast Asia
Question 11
Why is a new influenza vaccine needed every year?
Answers:
Antigenic drift
Antigenic shift
Merozoites
Opportunistic infections (OIs)
Question 12
Besides humans, which animals can become infected with
influenza A?
Answers:
Birds only
Pigs only
Birds and pigs only
Birds, pigs, horses, bats, and other animals
Only humans can become infected with influenza

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