U1.3

Question 1

___________ is the entry, establishment and invasion of microorganisms within a host.

Answer 1

Infection

Question 2

Infection may have the following possible outcomes:

a. The immune system of the host may arrest the infection before ______ to issues and organs occurs. This may lead to immunity of the host from the subsequent infection with the _____ pathogen.

Answer 2

injury; same

Question 3

Infection may have the following possible outcomes:

b. The host may become a ______. Infectious agents are constantly present and continue to spread because they are harbored by members of a host population. An individual who harbors a specific infectious agent in the absence of discernible clinical damage is called a carrier and may be of several types:

i. ___________ ( or incubation) carrier - is an individual who spread the infectious agent during the incubation period of an infection or disease.

ii. ____________ carrier - harbors and transmit a particular pathogen while recovering from an infectious disease.

iii. _______ carrier - an individual who shelters an infectious agent for a long period after recovery because of the latency of the infectious agent.

iv. ________ carrier - a person that carries a pathogen without ever having had the disease. These include individuals that have become contaminated with the pathogen and can mechanically transmit it to another host.

Answer 3

carrier; Incubatory; Convalescent; Chronic; Passive

Question 4

Infection may have the following possible outcomes:

c. A __________ results when an infection is not arrested and becomes entrenched in tissues, its pathological effects cause some degree of damage to the host.

Answer 4

disease