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77 Cards in this Set

  • Front
  • Back
Aerosol


Wilkins Ch 2
Aerosol:

an artificially generated collection of particles suspended in air
Microbial aerosol


Wilkins Ch 2
Microbial aerosol:

(1) suspension of particles in the air that consists partially or wholly of microorganisms;
(2) it may be capable of causing an infection
Anergy


Wilkins Ch 2
Anergy

(1) diminished reactivity to specific antigen(s);
(2) inability to react to skin-test antigen (even if person is infected with the organism tested) because of immunosuppression.
Antibody


Wilkins Ch 2
Antibody

(1) a soluble protein molecule produced and secreted by body cells in response to an antigen

(2) it is capable of binding to that specific antigen
Antigen


Wilkins Ch 2
Antigen

a substance that is capable, under appropriate conditions, of including a specific immune response and of reacting with the products of that response, that is, with the specific antibody
Carrier


Wilkins Ch 2
Carrier

a persons who harbors a specific infectious agent in the absence of discernible clinical disease and serves as a potential source of infection, The carrier state may be temporary, transient, or chronic
Asymptomatic Carrier


Wilkins Ch 2
Asymptomatic Carrier

(1) an individual who harbors pathogenic organisms without clinically recognizable symptoms;
(2)a carrier may infect those he/she contacts
CDCP


Wilkins Ch 2
CDCP

United States "Centers for Disease Control and Prevention"
CFU


Wilkins Ch 2
CFU

colony forming unit
Communicable period of a disease


Wilkins Ch 2
Communicable period of a disease

the time during which an infectious agent may be transferred directly or indirectly from an infected person to another person
(2) the communicable period may include or overlap the incubation period
Droplet


(Wilkins Ch 2)
Droplet

diminutive drop, such as the particles of moisture expelled
(1) while coughing
(2) Sneezing
(3) speaking
that may be carry infections agents
ELISA or EIA


(Wilkins Ch 2)
ELISA or EIA

(1) an "Enzyme Linked Immunosorbant Assay"

(2) a laboratory test to detect antibody in the blood serum
Western blot (WB)


(Wilkins Ch 2)
Western blot (WB)

(1) a laboratory test for antibody that is more specific than EIA

(2) and is used to to validate seropositive reactions to the EIA
Endemic


(Wilkins Ch 2)
Endemic

the constant presence of a disease or infectious gent within a geographic area
Epidemic


(Wilkins Ch 2)
Epidemic

(1) the widespread occurrence of cases of an illness in a community or region

(2) GREATER than the expected # of cases for the particular population
Fomite (or fomes)


(Wilkins Ch 2)
Fomite (or fomes) ***

an inanimate object or material on which disease-producing agents (microorganisms) may be conveyed
HCP & DHCP


(Wilkins Ch 2)
HCP & DHCP

HCP = "Health Care Personnel"

DHCP = "Dental Health Care Personnel"
Healthcare-associated infection


(Wilkins Ch 2)
Healthcare-associated infection

(1) an infection associated with or acquired during a medical or surgical intervention

(2) replaces "nosocomial"
Nosocomial


(Wilkins Ch 2)
Nosocomial

is limited to an ADVERSE infectious outcome occurring in a hospital
Immunity


(Wilkins Ch 2)
Immunity

(1) the RESISTANCE that a person has against disease;

(2) it may be NATURAL or ACQUIRED
Passive Immunity


(Wilkins Ch 2)
Passive Immunity

short-duration immunity
(1) either NATURALLY attained by transplacental transfer from the mother

(2) or ARTIFICIALLY acquired by inoculation of specific protective antibiodies
Active Immunity


(Wilkins Ch 2)
Active Immunity

immunity either
(1) NATURALLY attained by infection, with or w/o clinical manifestations

(2) or ARTIFICIALLY acquired by inoculation of the agent in a killed, modified or variant form;

(3) in response-the body produces its own antibodies (usually last years)
Incubation Period


(Wilkins Ch 2)
Incubation Period

the time interval between the INITIAL CONTACT with an infectious agent and the APPEARANCE of the first clinical sign, or symptom of the disease.
Infection


(Wilkins Ch 2)
Infection

a state caused by the:
(1) invasion
(2) development
(3) multiplication
of an infectious agent into the body
Primary Infection


(Wilkins Ch 2)
Primary Infection

(1) FIRST TIME
(2) No preexisting antibodies
Latent Infection


(Wilkins Ch 2)
Latent Infection

(1) Persistent infection FOLLOWING a primary infection

(2) in which a causative agent REMAINS inactive within certain cells
Recurrent infection


(Wilkins Ch 2)
Recurrent infection

Symptomatic REACTIVATION of a "latent infection"
Infectious Agent


(Wilkins Ch 2)
Infectious Agent

organism capable of PRODUCING an INFECTION
Jaundice


(Wilkins Ch 2)
Jaundice

YELLOWNESS of
(1) skin
(2) sclerae
(3) muscous membranes
(4) and excretions

due to "hyperbilirubinema" and deposition of bile pigments (Also called "icterus")
Microbiota


(Wilkins Ch 2)
Microbiota

the MICROSCOPIC living organisms of a region
Pandemic


(Wilkins Ch 2)
Pandemic

WIDESPREAD EPIDEMIC usually affecting the population of

(1) an extensive region
(2) several countries
(3) or sometimes an entire globe
Parenteral


(Wilkins Ch 2)
Parenteral

INJECTION by a route other than alimentary tract such as:

(1) subcutaneous
(2) intramuscular
(3) or intravenous
Parotitis


(Wilkins Ch 2)
Parotitis

INFLAMMATION of the "parotid gland"
Pathogen


(Wilkins Ch 2)
Pathogen

(1) a VIRUS
(2) or other microorganism,
(3) or other substance that causes disease
Opportunistic pathogen


(Wilkins Ch 2)
Opportunistic pathogen

capable of CAUSING DISEASE only when the host's resistance is lowered
Percutaneous


(Wilkins Ch 2)
Percutaneous

through the SKIN
Permuscosal


(Wilkins Ch 2)
Permuscosal

through the MUCOUS MEMBRANE
Prion


(Wilkins Ch 2)
Prion

PROTEIN PARTICLE lacking "nucleic acid" that
(1) has been implicated as the CAUSE of certain neurodegenerative diseases

Ex: Creutzfeldt-Jacob disease
Prodrome


(Wilkins Ch 2)
Prodrome

EARLY or premonitory sympton

(Adj: prodromal)
Replication


(Wilkins Ch 2)
Replication

process by which viruses REPRODUCE and multiply
Retrovirus


(Wilkins Ch 2)
Retrovirus

(1) virus with RNA as its core genetic material
(2) requires the enzyme REVERSE TRANSCRIPTASE to convert its RNA into proviral DNA
Serologic diagnosis


(Wilkins Ch 2)
Serologic diagnosis

the IDENTIFICATION of a disease by serum markers of that specific condition
Seroconversion


(Wilkins Ch 2)
Seroconversion

after exposure of the etiologic agent of a disease ,

(1) the BLOOD CHANGES from NEGATIVE ("seronegative") to POSITIVE (" seropositive") for the serum marker for the disease;

(2) the time interval for conversion is SPECIFIC for each disease
Serum marker


(Wilkins Ch 2)
Serum marker

a SPECIFIC FINDING (such as an antibody or antigen)

(1) by laboratory blood analysis
(2) that IDENTIFIES an existing disease state
Shedding (viral)


(Wilkins Ch 2)
Shedding (viral)

PRESENCE OF VIRUS in
(1) body secretions
(2) excretions
(3) or in body surface lesions

with potential for TRANSMISSION
Standard precautions


(Wilkins Ch 2)
Standard precautions

an approach to INFECTION CONTROL to PROTECT THE DHCP & pts

from PATHOGENS that can be spread by
(1) blood***
(2) bodily fluids ***
(3) secretions or excretion (except sweat)

***regardless if they contain BLOOD
STD


(Wilkins Ch 2)
STD

"Sexually transmitted disease"
Surveillance (of disease)


(Wilkins Ch 2)
Surveillance (of disease)

continuing SCRUTINY of all aspects of occurrence and SPREAD OF A DISEASE that are pertinent of effective control
Susceptible host


(Wilkins Ch 2)
Susceptible host

host NOT POSSESSING resistance against an infectious agent
Transmission (horizontal)


(Wilkins Ch 2)
Transmission (horizontal)

PASSAGE of an infectious agent from one individual to another
Vertical Transmission


(Wilkins Ch 2)
Vertical Transmission

passage of an INFECTIOUS AGENT from one GENERATION to another by
(1) breast milk
(2) across placenta
Universal precautions


(Wilkins Ch 2)
Universal precautions

an approach to INFECTION CONTROL in which all human BLOOD and certain body fluids are TREATED as if known to be infectious with

(1) HIV
(2) HBV
(3) other BLOOD-BORNE pathogens
Vector


(Wilkins Ch 2)
Vector

a carrier that TRANSFERS an infectious mircroorganism from one HOST to ANOTHER
Biologic Vector


(Wilkins Ch 2)
Biologic Vector

(1) an arthropod
(2) insect
(3) living carrier

in whose body the infecting organism MULTIPLIES before becoming infective to the recipient
Vehicle


(Wilkins Ch 2)
Vehicle

a substance/object that serves an as INTERMEDIATE means by which an infectious agent is
(1) TRANSPORTED
(2) and INTRODUCED

into a susceptible host through a suitable PORTAL of ENTRY
Virion


(Wilkins Ch 2)
Virion

COMPLETE VIRUS PARTICLE made up of the
(1) nucleoid -genetic material
(2) capsid - shell of protein that protects the nucleoid
Nucleoid


(Wilkins Ch 2)
Nucleoid

the GENETIC MATERIAL of a "virion"
Capsid


(Wilkins Ch 2)
Capsid

the shell of protein that protects the nucleoid of the "virion"
Virulence


(Wilkins Ch 2)
Virulence

the degree of PATHOGENICITY or "disease-evoking"power of an infectious agent
Virus


(Wilkins Ch 2)
Virus

a SUBCELLULAR GENETIC ENTITY
(1) capable of gaining ENTRANCE into a limited range of living cells
(2) and capable of REPLICATION ONLY within such cells
(3) Virus contains either DNA or RNA ***but not both!!!
Window Period


(Wilkins Ch 2)
Window Period

(1) the TIME between exposure resulting in INFECTION
(2) and the presence of DETECTABLE SERUM ANTIBODY;
(3) antibody test =neg. but infectious agent is TRANSMISSIBLE during window period
AIDS


(Wilkins Ch 2)
AIDS

acquired immunodeficiency syndrome
AZT (ZDV)


(Wilkins Ch 2)
AZT (ZDV)

(1) "zidovudine"
(2) retrovoir
(3) DRUG used for the treatment of HIV and AIDS
(4) 1st antirviral drug approved by the FDA
CD4+


(Wilkins Ch 2)
CD4+

(1) T-helper lymphocyte
(2) primary target cell for HIV infection; (3) CD4+ count DECREASES w/ the severity of HIV related illness
DNA


(Wilkins Ch 2)
DNA

"DeoxyriboNucleic Acid"
(1) a nucleic acid found in a cell nucleus
(2) a CARRIER of genetic information
HAART


(Wilkins Ch 2)
HAART

"Highly Active AntiRetroviral Therapy"
(1) containing several antiretroviral medications
(2) the combination has been MORE EFFECTIVE than monotherapy in the treatment of AIDS
HIV


(Wilkins Ch 2)
HIV

"Human Immunodeficiency Virus"

virus CAUSING AIDS
HIV-1 antibody


(Wilkins Ch 2)
HIV-1 antibody

(1) antibody to HIV Type 1
(2) antibody can be detected in the BLOOD 6-8 weeks AFTER INFECTION
HL


(Wilkins Ch 2)
HL

"Hairy Leukplakia"
IDU


(Wilkins Ch 2)
IDU

"Injection Drug User"
KS


(Wilkins Ch 2)
KS

"Kaposi's Sarcoma"

(1) a MALIGNANT vascular tumor
(2) an opportunistic neoplasm that may occur in people with HIV
LAV


(Wilkins Ch 2)
LAV

"Lymphodenopathy-Associated Virus"

(1) a former name for HIV
MMWR


(Wilkins Ch 2)
MMWR

"Morbidity and Mortality Weekly Report"

(1) a publication of the US Centers for Disease Control
PCP


(Wilkins Ch 2)
PCP

"PneumoCystis Pneumonia"

(1) Caused by Penumocystis carinii
(2) an OPPORTUNISTIC INFECTION that occurs in people with HIV
PGL


(Wilkins Ch 2)
PGL

"Persistent Generalized Lymphadenopathy"
PWA


(Wilkins Ch 2)
PWA

"Person With AIDS"
RNA


(Wilkins Ch 2)
RNA

"RiboNucleic Acid"

a nucleic acid FOUND in
(1) cytoplasm and
(2) Nuclei of certain cells

RNA DIRECTS
(1) the SYNTHESIS of proteins
(2) REPLACES DNA as a carrier of genetic codes in some viruses
(4)