Mechanism of Infection

Question 1

Name the term for the study of factors, events and circumstances that influence the transmission of infectious disease in humans?

Answer 1

EPIDEMIOLOGY

Question 2

________________ refers to the host, object, location, or substance from which an infectious agent is acquired.

Answer 2

SOURCE OF INFECTION

Question 3

What does endogenous mean?

Answer 3

ACQUIRED FROM HOST’S OWN MICROBIAL FLORA

ie. opportunistic infection

Question 4

What does exogenous mean?

Answer 4

ACQUIRED FROM SOURCES IN EXTERNAL ENVIRONMENT

ie. water, food, soil, air

Question 5

___________ transmission occurs when microbes are spread across a short distance (less than 1 metre).
(sneeze or cough)

Answer 5

DROPLET

Question 6

___________ transmission occurs when microbes are transmitted by air currents across long distances (more than 1 metre).

Answer 6

AIRBORNE

Question 7

__________ _________ transmission occurs when animals or biting arthropods transmit microbes to humans.

Answer 7

VECTOR BORNE

Question 8

__________ _________ transmission occurs when infection is transmitted by contaminated source; food water, medicine, etc.

Answer 8

VEHICLE BORNE

Question 9

What is it called when infection is acquired from a hospital?

Answer 9

NOSOCOMIAL INFECTIONS

Question 10

What is it called when infection is acquired from outside a health care setting?

Answer 10

COMMUNITY ACQUIRED

Question 11

Name the process by which a pathogen enters the body and gains access to susceptible tissue?

Answer 11

PORTAL OF ENTRY

Question 12

What type of infection is it when a pathogen crosses the placenta to infect a fetus during birth?

Answer 12

CONGENITAL INFECTION

Question 13

_______ of infection refers to the part of the body that is infected.

Answer 13

SITE