Walden PUBH6170 quiz 6

27 Jun Walden PUBH6170 quiz 6

Question
Question 1
Bacterial pathogens cause symptoms of a disease by invading host cells or by producing toxins that damage host cells.
Answer
True

False

1 points

Question 2
Prions are infectious proteins that cause normal proteins in the brain to misfold.
Answer
True

False

1 points

Question 3
Most surveillance systems are passive and disease specific.
Answer
True

False

1 points

Question 4
An 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.
Answer
True

False

1 points

Question 5
Which of the following sexually transmitted diseases is transmitted by a bacterial infection?
Answer

chlamydia

genital herpes

hepatitis B

genital warts

trichomoniasis
1 points

Question 6
Which of the following is not true regarding gonorrhea?
Answer

In 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 7
Which of the following sexually transmitted diseases is characterized by three distinct phases of infection?
Answer

chlamydia

genital warts

hepatitis B

syphilis

gonorrhea
1 points

Question 8
For an avian virus to become infective to humans, it is a requirement that it first “mix” in a swine host.
Answer
True

False

1 points

Question 9
Which of the following is not true regarding syphilis?
Answer

Symptoms 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 10
Which of the following sexually transmitted diseases can be cured by the use of antibiotics?
Answer

genital herpes

AIDS

pubic lice

gonorrhea

hepatitis B
1 points

Question 11
The CDC has the primary authority during an outbreak, and will routinely provide aid during an outbreak.
Answer
True

False

1 points

Question 12
Probiotics include all but which of the following?
Answer

Yogurt with live cultures

Milk fortified with Lactobacillus acidophilus

Orange juice fortified with calcium

Fermented dairy products
1 points

Question 13
Which of the following statements is not true?
Answer

Infectious 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 14
Prions:
Answer

are 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 above
1 points

Question 15
An 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 future
Answer
True

False