Quiz 4

Question 1

Which of the following constitute active surveillance for disease outbreaks?

Answer 1

Actively looking for cases of disease. For example, by monitoring and analyzing hospital admission data.

Question 2

Which of the following pathogens are transmitted by airborne route?

Answer 2

Measles virus, mycobacterium tuberculosis, and varicella-zoster virus.

Question 3

Which of the following routes of transmission might be associated with pathogens that cause common source outbreaks of disease?

Answer 3

little, or no, person-to-person transmission of the pathogen. A route of transmission involving indirect contact via fomites.

Question 4

In public health practice, which of the following constitute components of an outbreak investigation?

Answer 4

Verifying diagnoses and confirm outbreak. defining a case and case finding , tabulate data, control measures, formulate and test hypothesis, plan and execute additional studies
evaluate control measures, communicate findings

Question 5

Which of the following are components of cough etiquette?

Answer 5

cover your nose and mouth when you cough or sneeze, use a tissue or sleeve instead of your hands, dispose of used tissue into a waste container, and practice hand hygiene afterwards

Question 6

Against which of the following diseases could herd immunity help to protect a human population?

Answer 6

Only for communicable diseases. NOT Clostridium tetani (tetanus), rabies virus, or Rickettsia rickettsii (Rocky mountain spotted fever), west nile

Question 7

Use of disinfectant would be appropriate for which of the following?

Answer 7

reducing microbial contamination on surfaces and inanimate objects

Question 8

Over what distance drop droplet transmission occur most efficiently?

Answer 8

within 3 feet

Question 9

Which of the following may serve as reservoirs for exogenous pathogens of humans?

Answer 9

environment (soil, river water), infected non-human animals, and other, infected humans.

Question 10

Which of the following statements is/are true of exposure, as the term is used to describe pathogen transmission?

Answer 10

a host comes into contact with a source of some pathogen. Exposure does not always result in infection

Question 11

If they are involved in transferring pathogens from one host to another, which of the following would best be described as fomites?

Answer 11

Fomites are inanimate objects like gym towels and toilet seats

Question 12

Which of the following is/are characteristics of most pathogens that are maintained in humans?

Answer 12

Most pathogens that are maintained in humans only infect humans through horizontal transmission

Question 13

Which of the following transmission routes generally involve indirect contact?

Answer 13

only fecal-oral transmission

Question 14

Which of the following test results would allow pathogens isolated from individual patients to be definitely linked to a common source when they occur during an outbreak

Answer 14

PFGE patterns - DNA fingerprint of a pathogen isolate

Question 15

In public health, which of the following is/are control measures that would be implemented only in response to an outbreak in disease?

Answer 15

Only in response would be recall of contaminated food, and post exposure prophylaxis. isolation of TB patients and vaccination of pets for rabies happens all the time

Question 16

Which of the following are examples of personal protective equipment?

Answer 16

gloves, gown, mask, eye protection, face-shield, N95 respirator

Question 17

Which of the following diseases is post-exposure prophylaxis a standard health response?

Answer 17

Hep A and is standard for food-borne hepatitis, meningococcal diseases, rabies

Question 18

In public health, which of the following is/are routine control measures?

Answer 18

sanitation of water supply, treatment of sewage, inspecting of food supply, immunization programs, isolation orders.

Question 19

Which of the following are components of the standard precautions used in infection control practice?

Answer 19

safe injection practice, cough etiquette, use of PPE, and safe handling of equipment and items, and hand hygiene.

Question 20

Which of the following characteristics would enable a pathogen to be transmitted efficiency to naive hosts?

Answer 20

It would need to become airborne in respiratory drop nuclei.

Question 21

Which of the following may be vectors for human pathogens?

Answer 21

arthropods such as ticks and fleas

Question 22

Which of the following are considered to be vertical routes of pathogen transmission?

Answer 22

from mother to baby either - across placenta during pregnancy (placental-fetal), during the process of giving birth (maternal-parturition), or after birth (maternal-neonatal).

Question 23

Which of the following types of pathogens are most likely to be transmitted vertically by the maternal parturition route?

Answer 23

pathogens that are transmitted horizontally by the urogenital-sexual route also would have the opportunity to be transmitted vertically during parturition

Question 24

Which of the following are reasons why public health agencies may investigate an outbreak of disease?

Answer 24

identify and implement control measures that can stop an ongoing outbreak, or when the lessons learned can be used to prevent similar outbreaks in the future

Question 25

Which of the following statements is/are true of zoonotic infections?

Answer 25

Zoonotic infections are ones that are transmitted to humans from a vertebrate non-human animal reservoir.