Term
|
Definition
Gram Positive Bacteria, endospore forming, motile rods
-
capsule
-
exotoxins produce edema&death
-
Primary habitat is soil
-
zoonotic disease of sheep, cattle, goats
-
Portal of Entry determines disease
|
|
|
Term
BACILLUS ANTHRACIS
(Cutaneous Anthrax) |
|
Definition
skin, black eschar - least dangerous |
|
|
Term
BACILLUS ANTHRACIS
(Pulmonary) |
|
Definition
Inhaled into lungs - most lethal |
|
|
Term
BACILLUS ANTHRACIS
(Gastrointestinal) |
|
Definition
Contaminated meat, can be fatal |
|
|
Term
BACILLUS ANTHRACIS
TREATMENT AND CONTROL |
|
Definition
|
|
Term
|
Definition
-
Most serious Streptococcal pathogen
-
Gram positive cocci
-
facultative anaerobes
-
non spore forming, non-motile
-
can form capsules and slime layers
-
5-15% carry as normal flora
-
Inhabits throat, nasophaynx, occasionally skin
-
strict parasite; human only reservoir
-
sensitive to drying, heat, and disinfectants
-
transmission: contact, droplets, food, formites
|
|
|
Term
STREPTOCOCCUS PYOGENES DISEASES
|
|
Definition
- Pharyngitis, tonsillitis, impetigo, strep, scarlet fever
- necrotizing fasciitis (flesh eating disease, when bacteria produces enzymes and toxins that destroy tissue)
- skin infections
- septicemia
- Streptocoocal toxic shock syndrome
- Sequelae
|
|
|
Term
VIRULENCE FACTORS OF
STREPTOCOCCUS PYOGENES |
|
Definition
- C-carbohydrates - protect against lysozyme
- fimbrae - adherence
- M-protein - contributes to resistance to phagocytosis
- Capsule - provokes no immune response
- Complement 5a protease - blocks complement and neutrophil response
|
|
|
Term
VIRULENCE FACTORS OF
STREPTOCOCCUS PYOGENES
EXTRACELLUAR TOXINS |
|
Definition
- Streptolysins - cause cell and tissue injury
- Erythrogenic toxin (pyrogenic) - induces fever and rash
- Superantigens - strong monocyte and lymphocyte stimulants
|
|
|
Term
VIRULENCE FACTORS OF
STREPTOCOCCUS PYOGENES
EXTRACELLULAR ENZYMES |
|
Definition
- Streptokinase - digests fibrin clots
- Hyaluronidase - breaks down connective tissue
- Dnase - hydrolyzes DNA
|
|
|
Term
|
Definition
- Gram positive cocci
- often called pneumococcus
- causes 60-70% of all bacterial pneumonias
- typical pneumonia
- causes 35% of otitis media - inner ear infection
- all pathogenic strains have large capsules
- vaccine for high risk people
- Does not survive long outside its habitat
|
|
|
Term
Mycobacterium Tuberculosis |
|
Definition
- Gram positive, irregular shaped Bacilli
- Acid-fast staining
- Strict Aerobes
- possess mycolic acids and a unique type of peptidoglycan
- grow slowly
- 20 hour generation time
- does not produce capsules, flagella, or spores
- produces no exotoxins or enzymes
|
|
|
Term
Mycobacterium Tuberculosis
VIRULENCE FACTORS |
|
Definition
|
|
Term
Mycobacterium Tuberculosis
EPIDEMIOLOGY |
|
Definition
-
inadequate nutrition, debilitation of the immune system, poor access to medical care, lung damage, and genetics
-
1/3rd world population and 15M in US carry it
-
Bacillus very resistant to drying and disinfectants
-
transmitted by droplets
-
worldwide, leading cause of death from a bacterial infectious disease
|
|
|
Term
Mycobacterium Tuberculosis
DIAGNOSIS |
|
Definition
- Mantoux Test- local intradermal injection of purified protein derivative (PPD)
- look for red wheal to form in 48-72 hours
- in vivo or tuberculin testing
- x-rays
- direct identification of acid-fast bacilli in specimen
- cultural isolation and biochemical testing
|
|
|
Term
Mycobacterium Tuberculosis
Management and Prevention of TB |
|
Definition
|
|
Term
Mycobacterium Tuberculosis
Course of Infection and Disease |
|
Definition
- only 5-10% of infected people develop clinical disease
- untreated, the disease progresses slowly
- Majority of cases contained in lungs
- clinically divided into:
- Primary
- Secondary (reactivation or reinfection)
- Disseminated (extrapulmonary)
|
|
|
Term
Mycobacterium Tuberculosis
PRIMARY TB |
|
Definition
- Infectious dose 10 cells
- Phagocytosed by alveolar macrophages and multiply intracellularly
- after 3-4 weeks, immune system attacks, forming tubercles, granulomas consisting of a central core containing bacilli surrounded by WBCs - tubercle
- if center of tubercle breaks down into caseous lesions, they gradually heal by calcification
|
|
|
Term
Mycobacterium Tuberculosis
SECONDARY TB |
|
Definition
-
If patient doesnt recover from primary tuberculosis, reactivation of bacilli can occur
-
Tubercles expand and drain into the bronchial tubes and UR tract
-
Gradually the patient experiences more severe symptoms
-
Violent coughing, greenish or bloody sputum, fever, anoerexia, weight loss, fatigue
-
untreated, 60% mortality rate
|
|
|
Term
Mycobacterium Tuberculosis
EXTRAPULMONARY TB |
|
Definition
-
During secondary illness, bacilli disseminate to regional lymph nodes, kidneys, long bones, gential tract, braing, and meninges
-
complications are grave
|
|
|
Term
BORDETELLA PERTUSSIS
VIRULENCE FACTORS
|
|
Definition
-
Small gram-negative coccobacillus
-
capsule, adhesion molecules bind to ciliated respiratory epithelial cells, exotoxins destroy host cells
-
causes pertussis, whopping cough- only vaccine preventable disease on the rise in the US
|
|
|
Term
Hemophilus Influenzae
VIRULENCE FACTORS |
|
Definition
-
tiny, gram-negative pleomorphic rods
-
fastidious, sensitive to drying, temperature extremes, and disinfectants
-
Hib-subunit vaccine available
-
sensitive to drying, temp extremes, and disinfectants
-
caues acute bacterial meningitis, epiglottitis, otitis media, sinusitis, pneumonia, and bronchitis
|
|
|
Term
|
Definition
-
have no cell wall
-
highly pleomorphic
-
filamentous, moldlike appearance, very small, slow growing
-
causes primary atupical, or walking pnuemonia
-
becomes a membrane parasite that adheres tightly and fuses with the host cell surface
-
fusion makes destruction & removal difficult
|
|
|
Term
Gram Positive Bacteria of Respiratory System |
|
Definition
- Streptococcus pyogenes
- Streptococcus pneumoniae
- bacillus anthracis
- Mycobacterium tuberculosis
|
|
|
Term
Gram Negative Bacteria of Respiratory System |
|
Definition
- Bordetella pertussis
- Haemophilus Influenzae
- Mycoplasma pnuemoniae
|
|
|
Term
|
Definition
-
methicillin-resistant Staphyloccus aureus
-
carry resistance to many antibiotics
-
often treated with Vancomycin as last resort
|
|
|
Term
HA-MRSA
(Healthcare Associated MRSA) |
|
Definition
- occur in people who are or have been in a hospitl or other health care facility within the past year
- typically associated with invasive procedures or devices, such as surgeries, intravenous tubing or artificial joints
- bloodstream infections, surgical-site infections, or pnuemonia
|
|
|
Term
Community Associated MRSA |
|
Definition
|
|
Term
|
Definition
- sinuses have no normal flora
- inflammatory condition of any of the 4 pairs of sinuses
- when sinus openings become lbocked or too much mucus builds, bacteria can grow and form a biofilm
- allergies and cold viruses can cause increased secretions and bacteria may grow
|
|
|
Term
Defenses of the Respiratory System
|
|
Definition
-
coarse hairs in nose filter large particles from air
-
mucus traps microbes (1-2 quarts)
-
cilia moves microbes toward mouth
-
lymphoid tissue of tonsils and adenoids
-
alveolar macrophages in lungs engulf and destroy microbes
-
coughing
-
secretory IgA
|
|
|
Term
Rhinovirus
VIRULENCE FACTORS
|
|
Definition
-
Causues over 50% of common cold
-
exacerbates asthma
-
over 100 types
-
incubation of 1-2 days
-
grows in temp found in the nose and large airways (33-35 degree C)
-
1 virus = infectious dose
-
Bind to cell surface receptor ICAM-1 of the UR tract and dendritic and macrophages cells (attachment to the cells triggers anti-inflammatory response and dampens the immune response
-
host inflammatory response causes symptoms and not RV directed cytopathic effects
|
|
|
Term
Rhinovirus
Suspceptibility to bacterial infection |
|
Definition
-
RVs disrupt epithelial cell barrier by destroying tight junctions facilitating the transmigration of bacteria
-
RVs promote S. Aureus internalization
-
RVs stimulate Strep. Pneu. adhesion to tracheal cells
-
RVs suppress macrophages and dendritic cells
|
|
|
Term
|
Definition
-
Enveloped, crown appearance
-
large RNA genome, mutations are common
-
causes 10-20% of common colds
-
Usually mild human pathogen, but can mutate
-
Common serious vetrinary pathogen
-
large animal reservoir
|
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
Influenza Virus
Virulence Factors |
|
Definition
- Enveloped
- 8 RNA segments
- Hemaglutinin and Neuramidndase spikes
- virus attaches and infects cells in trachea - results in localized damagem, NO viremia
- kills 36K Americans/year
- antigenic drift and shift- virus changes&immune system doesn't recognize it
- large waterfowl reservoir
|
|
|
Term
INFLUENZA VIRUS
HEMAGLUTTININ (H) |
|
Definition
|
|
Term
TYPICAL INFLUENZA PATHOGENESIS |
|
Definition
-
droplet transmission
-
virus attaches to respiratory tract
-
attaches to the ciliated comunar epithelial cells lining the sinuses and airways
-
replication and inflammation
-
localized infection
-
no viremia
|
|
|
Term
|
Definition
-
Trivalent vaccine each year (3 strains)
-
includes 2 A and 1 B strain
-
grown in ebryonated chicken eggs, purified H
-
takes about 6 mos to produce
-
ideal time for vaccination - October through mid-November
-
routine annual influenza vaccination recommended for all persons aged 6 mos or older who do no have contraindications
|
|
|
Term
|
Definition
|
|
Term
RESPIRATORY SYNCYTICA VIRUS (RSV) |
|
Definition
-
most common resp. virus in infants
-
infects virtually all by the age of 2 years
-
usually causes cold like symptoms
-
most common cause of bronchiolitis
-
infects UR tract and produces giant multinucleated cells
-
epithelia of nose and eye portal of entry- replicates in the nasopharynx
-
fever, rhinitis, pharyngitis, otitis, croup
-
treatments - Synagis - a monoclonal anitbody that blocks attachement and ribavirin antiviral drug
|
|
|
Term
|
Definition
- Encodes the production of a viral envelope glycoprotein called hemaguttinin, which plays a role in binding to host cell receptors
|
|
|
Term
|
Definition
|
|
Term
|
Definition
A toxoid; an inactivated toxin (Td or Tdap). Booser needed every 10 years. |
|
|
Term
Gram postive dieases of the Digestive Sytem and the accessory glands |
|
Definition
-
Clostridium difficile
-
S. aureus
|
|
|
Term
Gram negative diseases of the digestive system and accessory glands. LPS - ENDOTOXIN |
|
Definition
-
H. pylori
-
Salmonella
-
E.coli
|
|
|
Term
Viruses of the digestive system and accessory glands
|
|
Definition
-
norovirus
-
hep a virus
-
hep b virus
-
hep c virus
|
|
|
Term
|
Definition
-
gram positive, endospore forming rods
-
produces endotoxis A and B
-
minor normal resident of intestine
-
when antibiotics kill off normal flora, C. diff overgrows
-
antibiotic associated coliltis- diarrhea, inflammed color, sloughs off pseudomembrane of fibrin and cells
|
|
|
Term
Defense mechanisms of the GI Tract |
|
Definition
|
|
Term
|
Definition
|
|
Term
What does c. diff do to the gut?
|
|
Definition
-
damages cells, triggering inflammation and fluid buildup
-
inflamed cells burst and die
-
c. diff spores leave colon via diarrhea and await next host
-
endospores spread around hospital
-
hands must be washed with soap and water; sanitizer does not kill spores
-
if possible, stop antibiotics and/or treat with metronidazole or vancomycin
|
|
|
Term
|
Definition
|
|
Term
|
Definition
-
localized to systemic diseases
-
abscesses, boils, empetigo, osteomyelitis
-
pneumonia, bacetermia, endocarditis, toxic shock syndrome
-
food poisoning, intoxication: enertotoxin requiers 100 degrees C for 30 min to activate
-
hands to food ----> temp abuse --> Staph multiplies and releases toxin and 1-6 hours symptoms
|
|
|
Term
S. Aureus - Exfolitative Toxin |
|
Definition
Cutaneous lesions and scaled skin syndrome in newborn |
|
|
Term
|
Definition
|
|
Term
|
Definition
-
gram negative, comma shaped bacteria
-
produces urease, which breaks down urea, producing ammonia that neutralizes stomach acid
-
responsible for 90% of peptic ulcers
-
dogs and cats carry H. Pylori
|
|
|
Term
|
Definition
-
gram negative, facultatively anaerobic rods
-
zoonotic- lives in intestinal tract of animals without making them sick
-
Most infected with samonella develop diarrhea, fever, abdominal cramps 12-72 hours after infection
-
most recover without treatment
-
during infection, populations of host bacteria decrease, sugars become abundat, and host inflammation abounts
|
|
|
Term
|
Definition
-
gram negative facultative anaerobic rods
-
cause 70% travelers diarrhea
-
causes 50-80% urinary tract infection
-
E.coli is in indicator organism for human fecal contamination
|
|
|
Term
STEC E. Coli
(Shiga Toxin Producing E Coli)
0157H7 |
|
Definition
-
can cause people to suffer from severe cramps, bloody diarrhea, vomiting, and a low grade fever for 5-7 days
-
symptoms show up 3-4 days after ingesting bacteria
-
self limited disease in most people
-
can be serious and cause hemolytic uremic syndrome, which casues permanent kidney damage and death if left untreated
|
|
|
Term
|
Definition
-
presents as acute-onset vomiting, watery non-bloody diarrhea with abdominal cramps, and nausea
-
occasionally a low grade fever occurs
-
dehydration most common complication
-
lasts 24-48 hours
-
an infected person can spread the virus for 3 days or more ater diarrhea or vomiting stops
-
immunity may be strain specific
|
|
|
Term
|
Definition
-
removes and destroys toxins
-
stores vitamins, minerals, and sugars
-
manufactures proteins involved in clotting, immunity, etc
|
|
|
Term
|
Definition
-
inflammation of the liver, producing swelling, tenderness, and sometimes permanent damage
-
caused by at least 6 diff viruses: HAV, HBV, HCV, HDV, HEV, AGV
-
non-viral hepatitis may be caused by chemicals, drugs, or alcohol
|
|
|
Term
|
Definition
-
fecal-oral transmission
-
non-enveloped RNA virus
-
classified as an enterovirus
-
milder, shorter term disease
-
treatment with immune globulin
-
vaccine both inactivated and attenuated available
-
is not chronic
|
|
|
Term
|
Definition
-
transmission through contact with blood, sexual partners, and perinatally
-
7 week incubation period
-
can lead to the development of hepatocellular carcinoma
-
treatment through interferon and reverse transcriptase inhibitors
-
recombinant vaccine produced by yeast available for prevention
-
Member of the hepadnavirus, a groupe of enveloped DNA virus
-
50% cases are asymptomatic
-
virus cannot be grown in tissue culture
-
10% become chronic carriers
|
|
|
Term
|
Definition
-
Transmission is primarily through contact with blood and blood products
-
estimated that more than 3 million americans are infected by this RNA virus
-
treated through interferon and ribavirin (old) and protease inhibitors (new)
-
no vaccine available
-
Can be chronic in about 80%
-
1/3 rd of all liver transplants for HCV damaged livers
|
|
|
Term
|
Definition
-
handwashing
-
inactivated&attenuated vaccine available
-
immune globulin
|
|
|
Term
Staph Aureus Virulence Factors |
|
Definition
-
coagulase enzyme causes blood plasma to clot
-
penicillinase enzyme allows s. aureus to grow in the presence of penicillin
-
hyalauronidase enzyme promotes invasion of host tissues
|
|
|
Term
|
Definition
-
necrotic tissue causes anaerboic conditions
-
germination of spores
-
production of tetanospasmin toxin
-
excess skeletal muscle contraction
-
respiratory muscles go into spastic, sustained contractions
|
|
|
Term
|
Definition
-
gram positive, endospore forming rods
-
food poisoning
-
found in soil, may contaminate vegetables
-
improper canning does not kill spores and can produce botulinum neurotoxin
|
|
|
Term
|
Definition
-
Blocks nerve impulses, temporarily paralyzing the muscle that cause wrinkles while giving the skin a smoother appearance.
-
relieves migraines, excessive sweating and muscle spasms in the neck and eyes
|
|
|
Term
|
Definition
-
Babies don't have well established normal flora
-
babies my ingest endospores, which germinate and produce toxin in the body
-
c. botulinum does not grow in adult intestines
|
|
|
Term
|
Definition
-
Gram positive bacilli, endospore forming rod
-
common resident of soild and GI tracts of animals
-
causes tetanus or lockjaw, a neuromuscular disease
-
endospores usually enter through accidental puncture wounds, burns, umbilical stumps, frostbie, and crushed body parts
-
bacteria grows and tetanospasmin - a neurotoxin that causes spastic paralysis
|
|
|
Term
|
Definition
-
blocks muscle relaxation
-
death occurs from spasms of respiratory muscles
-
Vaccine - DPT is a toxoid, inactivated toxin (td or Tdap)
-
Vaccine booster needed every 10 years
|
|
|
Term
|
Definition
-
gram negative diplococci; meningococcus
-
carried in nasopharynx, invades when resistance is lowered; enters bloodstream & meninges
-
Symptoms are high fever, chills, lethargy, and a rash
-
if meningitis is present, the symptoms will aslo include headache and neck stiffness (which may not be present in infants); seizures may also occur
-
in overwhelming meningococcal infections (septicemia), shock, coman, and death can follow within several hours even with appropriate medical treatment
-
about 9-12% of persons with meningococcal disease die. Of those that recover, up to 20% suffer from serious after-effect, such as hearling loss, limb loss, or brain damage
|
|
|
Term
Neisseria Mengingitidis
Types and Vaccines |
|
Definition
-
5 types: A, B, C, W135, and Y
-
the MCV vaccine contains Neisseria meningitidis serogrop A, C, Y, and W-135 capsular polysaccharide antigens individually conjugated to diptheria toxoid protein
-
vaccine does not contain live bacteria
-
new vaccine portects against subtype B which casues about 1/3 of all the meningococcus cases in the US
|
|
|
Term
Varicella Zoster Virus (VZV)
|
|
Definition
-
member of the Herpes virus family, which all cause chronic infections for life & recurrence disease
-
95% US population infected
-
causes chickenpox and shingles
|
|
|
Term
Varicella Zoster Virus (VZV)
Primary Infection |
|
Definition
|
|
Term
Varicella Zoster Virus (VZV)
Reactivation |
|
Definition
-
Shingles with vesicles localized to a dermatone on one side of trunk or face
-
live virus shinges vaccine (14X stronger than chickenpox)
-
most commonly occurs in people 50 or older or people who are immunosupressed
-
shingles vaccine recommended at 60 years
|
|
|
Term
|
Definition
-
smallpox is most easily confused with chickenpox
-
a single case of smallpox would be considered an act of bioterrorism
-
chickenpox lesions at different stages- new lesions appear in crops every few days
-
All smallpox lesions should be at the same stage of development
-
centrifugal pattern of smallpox lesions
|
|
|
Term
|
Definition
-
smallpox was worldwide
-
15M people infected annually
-
2M died with millions more left disfigured and sometimes blind
-
1796-Jenner used cowpox to vaccinate against smallpox
-
1977-last natural cause of smallpox, occurred in Somalia
-
1980-smallpox was declared eradicated
|
|
|
Term
|
Definition
-
Largest and most complex virus known
-
transmission does not occur until onset of rash, by then most are in bed with high fevers & malaise
-
mortality rate 20%-30%
|
|
|
Term
|
Definition
-
most easily confused with chickenpox
-
all smallpox lesions should be at the same stage of development
-
chickenpox lesions at different stages - new lesions appear in crops every few days
|
|
|
Term
Smallpox as a biological weapon |
|
Definition
-
smallpox is stable in aerosol form
-
stable on surfaces ~24 hours if not exposed to UV light
-
stable on linens, clothes for extended periods
-
spreads from person to person by
-
No known animal or insect reservoir
|
|
|
Term
|
Definition
-
Causes Rubeola or red measles
-
8th most frequent death worldwide
-
VERY contagious through respiratory aersols
-
sore throat, headache, Koplik's spots in mouth then rash, ear infections, pneumonia, ecephalitis, even death
-
most serious complication is subacute sclerosing panecephalitis (SSPE) progressive neurological degeneration of the cerebral cortex - 1 in 1M cases
-
less than 100 cases/year in US. Cases have been increasing due to rise of anit-vaxers
-
life attenuated measles vaccine, MMR, given 12-15 months
|
|
|
Term
|
Definition
-
1981- CDC first reported new disease. 5 cases of PCP pneumonia in homosexual men
-
1983-Montagnier discovered the cause, a virus, HIV
-
1985- HIV blood test available
-
1996- effective treatment, protease inhibitors and combinations became available
|
|
|
Term
|
Definition
- Sex - anal, vaginal, and oral
- Parenteral - IV drug use, needlesticks, transfusions, transplants
- Perinatal - mother to fetus
- only 25-33% of untreated HIV pass infection to babies
- less than 1% with treatment
|
|
|
Term
|
Definition
-
1.1 M HIV infected people in the US
-
12.5% are unaware of their infection (1 in 8)
-
~50,000 Americans become infected with HIV each year since 1995
-
15,000 Americans die of AIDS each year
-
Worldwide, over 33M are infected with HIV
|
|
|
Term
How does HIV virus enter in female or male body? |
|
Definition
- semen
- blood
- vaginal secretions
- breast milk
|
|
|
Term
What type of virus is HIV? |
|
Definition
|
|
Term
|
Definition
- 1900s benign simian virus - SIVcpz mutated into HIV1
- stayed in remote Africa until large population settlements established, trade routes, travel and the sexual revolution spread it worldwide
|
|
|
Term
|
Definition
-
MUST bind to CD4 and a co-receptor (CCR5 or CXRCR4)
-
infects two types of cells
-
infected macrophages travel to brain, lungs, bone marrow
-
replicates rapidly and generates lots of mutant strains
-
B cells produce antibodies to each new variant
|
|
|
Term
|
Definition
-
Binds to CD4 and a co-receptor (CCR5 or CXRCR4) and fuses to host cell surface
-
HIV RNA, reverse transciptase, integrase, and other viral proteins enter the host cell
-
viral DNA is formed by reverse transcription
|
|
|
Term
|
Definition
-
varies substantially among people
-
Window period - time before seroconversion (anti-HIV antibodies are not detectable); false neg HIV tests; high viral replication, dangerous time when people might infect others
-
usually anti-HIV antibodies are detected between 6 and 18 weeks after exposure to HIV
-
Antiretroviral drugs recommended when HIV is diagnosed
|
|
|
Term
|
Definition
-
HIV destroys T cells, the body replaces them until body is overwhelmed
-
Antiretroviral drugs slow replication
-
Without medication, asymptomatic period may last 1-20 years, average is 10 years
-
AIDS = less than 200 T4 cells/microliter, presence of HIV, opportunistic infections, and cancers
|
|
|
Term
|
Definition
-
blood test for antibodies reactive to HIV
-
antibodies are detectable between 6-18 weeks
-
window period- people don't produce detectable antibodies for 6 weeks to 1 year after infection. False negative HIV tests, dangerous time when people may infect others
-
|
|
|
Term
OraSure HIV-1 Oral Specimen Collection Device |
|
Definition
-
does not collect saliva, but a sample called oral mucosal transudate (OMT)
-
NOT a saliva test
-
OMT contain high levels of IgG antibodies
-
tests for antibodies - not virus
|
|
|
Term
|
Definition
-
diseases caused by microbes that normally live in or on the body without causing disease in people with normal immune systems
-
suppression of the immune system allows the harmless to become harmful
-
casued by viruses, bacteria, fungi, and protozoa that are kept in check by an intact immune system
-
caused by over 100 microbes
-
cam become disseminated (systemic)
|
|
|
Term
|
Definition
-
abstinence or fidelity-most effective measure of prevention
-
comprehensive sex education
-
male circumcision reduces infection by 60%
-
tests and get positive people into treatment
-
antiviral medication reduces transmission by infected person to unifected person
-
PrEP (Pre-Exposure Prophylaxis)-treatment of high risk individuals to prevent infection
|
|
|
Term
|
Definition
-
latex - use water based lubricant only
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polyurethane (plastic)- use any lubricant, more expensive, higher frequency of breakage, slippage
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lamb skin- porous, prevent pregnancy, NOT STDS!
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reduces but not eliminate HIV transmission
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Don't use male and female condoms at same time
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1 in 140 condoms break
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must be used consistently and correctly
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Do not prevent HPV
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Term
HIV Universal Precautions |
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Definition
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gloves
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gowns, masks, and goggles
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careful handling of needles
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disinfection with 1:100 bleach dilution
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preventive treatment after exposure
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Term
Defense Mechanisms of the genitourinary system |
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Definition
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valves of bladder prevent backflow of urine to kidneys
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Secretory IgA
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acidity of urine
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urine has lysozyme and lactoferrin
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flushing action of urine
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acidity and normal flora of vagina - microbial antagonism
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