1. Disease Reservoirs

Question 1

Disease transmission is a result of the interaction between what 3 things

Answer 1

host, agent, and environment

Question 2

Habitat in which an infectious agent normally lives, grows, and multiplies

Answer 2

Reservoir

Question 3

_____ maintain pathogens over time, from year to year or generation to generation

Answer 3

Reservoirs

Question 4

What are the 3 questions to ask if determining a reservoir

Answer 4

1. Is it naturally infected with the pathogen
2. Can the species of animal maintain the pathogen over time?
3. Can this source transmit the dz to a new susceptible host?

Question 5

What are the two forms of vertical transmission?

Answer 5

1. Transplacental

2. perinatal

Question 6

What are the 2 forms of horizontal transmission?

Answer 6

1. Direct

2. Indirect

Question 7

What are the two subcategories of direct transmission?

Answer 7

1. projection

2. Contact

Question 8

What are the two subcategories of Indirect transmission

Answer 8

1. vehicle

2. vector

Question 9

What are the two forms of vehicle transmission?

Answer 9

1. common vehicle

2. fomite

Question 10

What are the two forms of vector transmission?

Answer 10

1. Biological vector

2. Mechanical vector

Question 11

Type of transmission where reservoir transmits to it’s offspring?

Answer 11

vertical

Question 12

Vertical transmission where pathogen crosses the placenta

Answer 12

Congenital

Question 13

vertical transmission where pathogen infects host during parturition or colostrum

Answer 13

Perinatal

Question 14

Transmission of pathogen from the reservoir to a new host

Answer 14

horizontal

Question 15

horizontal transmission from the reservoir directly to a susceptible host

Answer 15

Direct

Question 16

Transmission from reservoir via any sort of intermediary, animate or inanimate object

Answer 16

Indirect

Question 17

An inanimate object which serves to communicate disease

Answer 17

Vehicle

Question 18

A living org. that serves to communicate disease

Answer 18

vector

Question 19

food and water are consided what type of vehicle?

Answer 19

common

Question 20

Object that can be contaminated and transmit disease on a limited scale

Answer 20

Fomites

Question 21

T/F vectors are live organisms?

Answer 21

T

Question 22

T/F. most vectors are arthropods?

Answer 22

T

Question 23

What is a mechanical vector?

Answer 23

the agent doesnt multiply or undergo part of its life cycle while in/ on the arthropod

Question 24

What is a biological vector?

Answer 24

the agent undergoes changes or multiplies while in the vector, these activities are required for transmission