The infection cycle begins when a pathogen is established in the _________.

A) means of entrance
B) reservoir host
C) susceptible host
D) means of transmission
E) means of exit

Infection Cycle

A sequence of events that involve the spread of pathogens, from their source through a means of transmission, to a susceptible host.

Pathogen Established

Refers to the successful colonization and growth of a disease-causing microorganism within a host.

Reservoir Host

An organism that harbors a pathogen for an extended period, without suffering from disease caused by the pathogen, and serves as a source of infection.