Terms Flashcards

1
Q

Person or animal that harbors the infectious agent/disease and can transmit it to others but does not demonstrate signs of the disease

A

Carrier

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2
Q

Exposure to a source of infection; a person who has been exposed.
This does not imply infection, but rather the possibility of infection

A

Contact

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3
Q

Capable of being transmitted fro person to person by contact or proximity. Does not utilize a vector

A

Contagious

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4
Q

An organism that harbors a parasitic, mutualistic, or commensalism guest.

A

Host

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5
Q

An organism that lives on or in a host organism and gets its food from or at the expense of its host.

A

Parasite

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6
Q

Three main classes of human parasites?

A

Protozoa, helminths, and ectoparasites

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7
Q

An infectious agent or organism that can produce disease

A

pathogen

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8
Q

Invasion of the body tissues of a host by an infectious agent, regardless if it causes disease or not

A

Infection

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9
Q

A pathway into the host that gives an agent access to tissue that will allow it to multiply or act

A

Portal of entry

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10
Q

A population of organisms or the specific environment in which an infectious pathogen naturally lives and reproduces; usually a living host of a certain species

A

Reservoir

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11
Q

A pathogen that is transmissible from non-human animals (typically vertebrates) to humans

A

Zoonosis

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12
Q

An increase, often sudden, in the number of cases of a disease above what is normally expected in that population and area

A

Epidemic

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13
Q

Carries the same definition of epidemic but is often more limited in geographic area

A

Outbreak

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14
Q

The constant presence of an agent or health condition within a given geographic area or population

A

endemic

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15
Q

An epidemic occurring over a widespread area (multiple countries or continents) and usually affecting a substantial proportion of the population

A

Pandemic

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16
Q

Any of a group of viruses that are transmitted between hosts by mosquitoes, ticks, and other arthropods

A

Arbovirus

Malaria, Dengue Fever, West Nile Virus, Lyme disease, Rocky mountain spotted fever

17
Q

Resistance developed in response to an antigen (pathogen or vaccine) characterized by the presence of an antibody produced by the host

A

Active Immunity

18
Q

When a majority of a given group is resistant/immune to a pathogen

A

Herd immunity

19
Q

Transfer of active humoral immunity to ready-made antibodies produced by another host or synthesized

SHORT TERM
Rabies, tetanus, Crofab

A

Passive Immunity

20
Q

Time interval from a person being infected to the onset of symptoms of an infectious disease

A

Incubation period

21
Q

Time interval from a person being infected to the time of infectiousness of an infectious disease

A

Latency period

22
Q

An infection that is nearly or completely asymptomatic. An asymptomatic carrier of the infection

A

Subclinical infection

23
Q

A combination of symptoms, characteristics of a disease, or health condition; sometimes refers to a health condition without a clear cause

A

Syndrome

24
Q

Measure of death in a defined population during a specific time interval, from a defined cause

A

Mortality Rate

25
Q

Transmission occurs between an infected person and a susceptible person via direct physical contact with blood or body fluids

A

Direct contact

26
Q

Transmission occurs when there is no direct human-to-human contact.

Vehicle Borne - contaminated surface

Vector Borne - mosquitos, tics, rodent,

A

Indirect contact

27
Q

Often indicates the onset of a disease before more diagnostically specific signs and symptoms develop

A

Prodrome