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1. The spread of infectious agents through the air via tiny
Airborne respiratory droplets or aerosols that can remain
sus-pended in the air for extended periods. This mode
of transmission is significant for certain diseases, allow-
ing pathogens to infect individuals even at a
distance from the original source
2. The pathway through which a pathogen enters a
new host after exiting its reservoir. Identifying the Portal of Entry
por-
tal of entry is essential for understanding how
infec-tions spread and for implementing effective
preven-tion strategies.
3. A medical intervention that involves the
administra-tion of a vaccine to stimulate the Vaccination
immune system to recognize and fight specific
pathogens. Vaccines are designed to prevent
infectious diseases by preparing the immune
system to respond quickly and effectively to future
exposures
4. The method by which a pathogen is spread from
one host or reservoir to another. Understanding
the mode of transmission is essential for Mode of Transmission
implementing effective infection control and
prevention strategies
5. The immediate transfer of pathogens from an infected Direct Contact
individual to a susceptible host through physical
touch or interaction. This mode of transmission
plays a sig-nificant role in the spread of infectious
diseases.
6. An individual or organism that is vulnerable to
in-fection by a pathogen due to various factors, Susceptible Host
such as a weakened immune system, lack of
immunity, or
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, CPH Exam-Disease Prevention and Injury Reduction with all Correct &
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certain health conditions. Understanding who is
sus-ceptible is crucial for infection control and
prevention strategies
7. The natural habitat or environment where a pathogen Resevoir/Source
(such as a virus, bacterium, or parasite) lives,
grows, and multiplies. Understanding reservoirs is
crucial for controlling and preventing the spread
of infectious diseases.
8. An organism or substance that directly causes a Causative Agent
dis-ease or health condition. In the context of
infectious diseases, it refers specifically to
pathogens such as bacteria, viruses, fungi, or
parasites that are respon-sible for causing
illness.
9. The sequence of events that enables the spread Chain of Transmission
of infectious diseases from one individual to
another. Un-derstanding this chain is crucial for
controlling and preventing the transmission of
diseases.
The spread of infectious diseases through
10. vectors, which are living organisms (typically Vector Borne
insects or arthro-pods) that carry pathogens from
one host to another. This mode of transmission is
significant for many dis-eases affecting humans
and animals.
A form of indirect protection from infectious
11. diseases that occurs when a sufficient proportion
of a popula-tion becomes immune to a pathogen, Herd Immunity
either through vaccination or previous infections.
This immunity re-duces the likelihood of disease
spread, thereby pro-tecting individuals who are
not immune.
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