Disease Reservoirs and Transmission

Question 1

Biological Vector

Answer 1

Agent undergoes changes or multiplies while in the vector; these activities are required for transmission

Question 2

Lyme Disease is an example of what type of disease transmission?

Answer 2

Horizontal - Indirect

Question 3

Direct Projection Transmission (Droplet Spread)

Answer 3

Wet, large and short range aerosols

_____________________

Sneeze, Cough, Talking

Question 4

Vector

Answer 4

Living organism that serves to communicate disease

Question 5

Mechanical Vector

Answer 5

Agent does not multiply or undergo part of its life cycle while in/on the arthropod

Question 6

Direct Horizontal Transmission

Answer 6

Transmission directly from the reservoir to a susceptible host

Question 7

Walter Reed

Answer 7

Discovered that Yellow Fever is transmitted by mosquitos

Question 8

Perinatal Transmission

Answer 8

Transmission during parturition via colostrum

Question 9

Reservoir

Answer 9

Habitat in which infectious agent normally lives, grows and multiplies

Question 10

Robert Koch

Answer 10

First isolated Anthrax

Developed Germ Theory

Question 11

Indirect Horizontal Transmission

Answer 11

Transmission via any sort of intermediary - animate or inanimate

Question 12

Disease transmission is a result of the interaction between what?

Answer 12

Host

Agent

Environment

Question 13

Most vectors are _______.

Answer 13

Arthropods

Question 14

Vertical Transmission

Answer 14

Transmissionf rom a reservoir host to its offspring

Question 15

Fomite

Answer 15

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

Question 16

Airborne Transmission

Answer 16

Considered to be a form of direct transmission because disease agents do not generally survive for extended periods within aerosolized particles

Question 17

Congenital Transmission

Answer 17

Transmission of pathogens that can cross the placenta, infect eggs, etc

Question 18

Indirect Horizontal Transmission can be broken down into transmission by

Answer 18

Vector Transmission

Vehicle Transmision

Question 19

Types of Vehicle Transmission

Answer 19

Common Vehicle

Fomite

Question 20

In disease prevention what is more important? To know the mode of transmission or to identify the specific agent?

Answer 20

Knowing the mode of transportation

Question 21

John Snow

Answer 21

Published evidence that cholera is transmitted by the fecal oral route and by the water supply

Question 22

Direct Contact Transmission

Answer 22

Skin to skin contact, MM contact, direct contact with a soil reservoir, bite, scratch, etc

Question 23

In recognizing a reservoir, what three questions need to be answered?

Answer 23

Is it naturally infected with the pathogen?

Can that “reservoir” maintain the pathogen over time?

Can this source transmit the disease to a new, susceptible host?

Question 24

Types of Vector Transmission

Answer 24

Biological Vector

Mechanical Vector

Question 25

Major modes of transmission

Answer 25

Horizontal Transmission

Vertical Transmission

Question 26

West Nile Virus is an example of what type of disease transmission?

Answer 26

Horizontal - Indirect

Question 27

Vehicle

Answer 27

Inanimate object which serves to communicate disease

Question 28

Horizontal Transmission

Answer 28

Transmission from the reservoir to the new host

Question 29

Methods of Vertical Transmission

Answer 29

Transplacental/ Transovarial

Perinatal

Question 30

Methods of Horizontal Transmission

Answer 30

Direct Horizontal Transmission

Indirect Horizontal Transmission

Question 31

Common Vehicle

Answer 31

Food, Water, Contaminated IV drugs

Question 32

Ronal Ross

Answer 32

Discovered that malaria is transmitted by mosquitos