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124 Cards in this Set

  • Front
  • Back
Syphilis
(bad blood disease, systemic)

*C.A.
treponema pallidum
Syphilis
(bad blood disease, systemic)

*Sx - primary stage
primary stage - 3-6 weeks after initial
*depressed, hard, painless lesion on anus, genitals, mouth, fingers etc
*highly infectious
*heals itself
*curable
Syphilis
(bad blood disease, systemic)

*Sx - secondary stage
secondary stage - 4+ weeks later
*generalized rash (affects palms and soles)
*genital/oral lesions
*fever/sore throat/headache
*highly infectious
*last chance to cure
Syphilus
(bad blood disease, systemic)

tertiary stage - Sx
tertiary stage - 3-30 years after initial infection
*gumma's (soft, rubbery lesions) form in internal and external tissues
*cardiovascular syphilus
*neurosyphilus (affects CNS)
*NOT contagious
Syphilus
(bad blood disease, systemic)

Children Sx
*Hutchinson's teeth
*Saber shins
Syphilus
(bad blood disease, systemic)

Tx
penicillin
Syphilus
(bad blood disease, systemic)

reservoir
Humans
Syphilus
(bad blood disease, systemic)

Transmission
direct sexual contact
congenital
Syphilus
(bad blood disease, systemic)

Prevention
Safer sex
abstinence
Cold sores Vs Chancres
Cold sores - painful and raised

Chancres - Soft, depressed, painless lesions
Gonorrhea
(the drip, the clap, the heat, systemic)

C.A
Neisseria gonorrhoeae
Gonorrhea
(the drip, the clap, the heat, systemic)

Sx
male urethra inflammatory response:
*pus discharge
*penis burning/warmth
*penis pain (clapping penis helps lessen pain
*women asymptomatic
*pus discharge blends with vaginal secretions
*untreated may lead to:
*sterilization
*endocarditis
*meningitis
*gonococcal arthritis
*proctitis
Gonorrhea
(the drip, the clap, the heat, systemic)

Tx
penicillin
Gonorrhea
(the drip, the clap, the heat, systemic)

reservoir
Humans
Gonorrhea
(the drip, the clap, the heat, systemic)

transmission
direct sexual contact
congenital
*gonococcal ophthalmia (eye inflammation) transmitted to:
1.infant via infected mother
2.children/adults via contaminated hands
Gonorrhea
(the drip, the clap, the heat, systemic)

prevention
safer sex
abstinence
Chancroid

C.A.
haemophilus ducreyi
Chancroid

Sx
*soft, painful, depressed lesions on external genitalia
*spreads causing necrosis
*swollen lymph nodes in the groin
*can spread to breasts, lips, tongue, and other mucosal and skin tissues
Chancroid

Tx
ABC
Sulfa drugs
Chancroid

Reservoir
Humans
Chancroid

Transmission
direct sexual contact
Chancroid

Prevention
Safer sex
abstinence
Herpes Simplex Type II
(chronic)

C.A.
virus - HSV-2
Herpes Simplex Type II
(chronic)

Sx
*painful, raised lesions
*swollen lymph nodes
*burning, itching, painful urination
*urethral/vaginal discharge
*female: on vulva, vagina, cervix, perineum
*male: on glans, foreskin, and shaft
*primary lesions - 6-8 days after initial infection, disappear w/in 2-3 weeks later
*recurs periodically
Herpes Simplex Type II
(chronic)

Tx
Chemotherapy
non-specific
Herpes Simplex Type II
(chronic)

reservoir
humans
Herpes Simplex Type II
(chronic)

transmission
direct sexual contact
congenital
Herpes Simplex Type II
(chronic)

prevention
abstinence
safer sex
monogamy
Acquired Immunodeficiency Syndrome (AIDS, systemic)

C.A.
virus
Acquired Immunodeficiency Syndrome (AIDS, systemic)

Early Stage Sx
*flu like symptoms
*rashes, itching
*mouth sores
Acquired Immunodeficiency Syndrome (AIDS, systemic)


Later symptomatic
*swollen lymph nodes
*constant fatigue
*diarrhea, weight loss
*decreased appetite
*fever/night sweats
Acquired Immunodeficiency Syndrome (AIDS, systemic)


Advanced
*memory loss
*coordination loss
*decision making trouble
Acquired Immunodeficiency Syndrome (AIDS, systemic)


Opportunistic Infections
*Karposi's sarcoma
*pneumocystis pneumonia
*tuberculosis
Acquired Immunodeficiency Syndrome (AIDS, systemic)

Tx
Chemotherapy
Acquired Immunodeficiency Syndrome (AIDS, systemic)

reservoir
humans
Acquired Immunodeficiency Syndrome (AIDS, systemic)

transmission
anal, oral, vaginal sex
congenital
sharing needles
Acquired Immunodeficiency Syndrome (AIDS, systemic)

prevention
abstinence
safer sex
not sharing needles
testing if exposure was possible
Genital warts
(chronic)

C.A.
virus (HPV)
Genital warts
(chronic)

Sx
*warts affecting anus, genitals, and cervix
*can be oral
*painless and raised
*tiny or may spread into large clusters
Genital warts
(chronic)

Tx
Removal:
*cauterization
*chemotherapy
*scalpel surgery
*cryotherapy
*laser surgery
Genital warts
(chronic)

reservoir
humans
Genital warts
(chronic)

transmission
direct sexual contact
VERY contagious
Genital warts
(chronic)

prevention
abstinence
monogamy
vaccine (protects against 4 most common HPV strains)
safer sex
Acute Bacterial Conjunctivitis
(pinkeye)

C.A.
streptococcus
staphylococcus
Acute Bacterial Conjunctivitis
(pinkeye)

Sx
*conjunctive inflammation
*intense tearing
*sensitivity to light/touch
*swollen eyelids
Acute Bacterial Conjunctivitis
(pinkeye)

Tx
ABC
Acute Bacterial Conjunctivitis
(pinkeye)

reservoir
humans
Acute Bacterial Conjunctivitis
(pinkeye)

transmission
endogenous
direct/indirect contact
Acute Bacterial Conjunctivitis
(pinkeye)

prevention
PBH
Trachoma
(#1 infectious cause for blindness)

C.A.
Chlamydia trachomatis
Trachoma
(#1 infectious cause for blindness)

Sx
*begins w/Sx for acute conjunctivitis
*eyelid scarring
*ingrown eyelashes
*cornea clouding
*if untreated early, scar tissue forms over cornea causing blindness and eye deformation
Trachoma
(#1 infectious cause for blindness)

Tx
ABC
Trachoma
(#1 infectious cause for blindness)

reservoir
humans
Indian reservations
Trachoma
(#1 infectious cause for blindness)

transmission
direct/indirect contact
Trachoma
(#1 infectious cause for blindness)

prevention
PBH
prompt diagnosis
mass screening
Superficial staphylococcal infections:

Name
*furuncles (boils and sties) and carbuncles
*acne
*paronychia
*impetigo
*decubitus ulcers
Superficial staphylococcal infections

C.A.
staphylococcus aureus
staphylococcus epidermis
Superficial staphylococcal infections:

Tx
ABC
Superficial staphylococcal infections:

reservoir
humans
Superficial staphylococcal infections:

transmission
endogenous
direct/indirect contact w/person, fomites, droplets
Superficial staphylococcal infections:

prevention
PBH
vaccine or toxoid for chronic cases
Furuncles (boils and sties)
Furuncle - infected hair follicle
carbuncles
mass of several skin boils filled with fluid, pus, and dead tissue
acne
patches of pimples, furuncles, carbuncles on any body area. common in adolesence
paronychia
(hangnail)
infection around nails w/redness and swelling
Impetigo
crops of blisters w/red inflamed base, blisters break infecting surrounding tissue, common in children (crusty sores)
Decubitus Ulcers
(bed sores)
lesions caused by minor but continuous skin irritations
Hansen's disease
(leprosy, systemic, chronic)

C.A.
mycobacterium leprae
Hansen's disease
(leprosy, systemic, chronic)

Sx
*feeds on connective tissue
*chronic, slow progressing disease of skin and peripheral nerves
*cauliflower ear
*bulbous nose
*two types: lepromatous
tuberculoid (develops more slowly and is less severe)
Hansen's disease
(leprosy, systemic, chronic)

Tx
chemotherapy (MDT)
surgery
Hansen's disease
(leprosy, systemic, chronic)

reservoir
human
Hansen's disease
(leprosy, systemic, chronic)

transmission
direct contact over prolonged period
not highly contagious
Hansen's disease
(leprosy, systemic, chronic)

prevention
early diagnosis and Tx
Herpes Simplex Type 1
(Chronic)

C.A.
virus
Herpes simplex type 1
(chronic)

Sx
nongenital infections:
*Dry eyes
*eczema
*cold sores
*meningoencephalitis
Hansen's disease
(leprosy, systemic, chronic)

Tx
nonspecific
chemotherapy
Hansen's disease
(leprosy, systemic, chronic)

reservoir
human
Herpes simplex type 1
(chronic)

transmission
direct contact, may exist as latent infection in sensory nerves
Hansen's disease
(leprosy, systemic, chronic)

prevention
PBH
Tinea capitis
ringworm of the scalp
Tinea Curex
(jock itch)
ringworm of the groin
Tinea corporis
ringworm of the body
Tinea ungium
ringworm of the nails
Tinea pedis
(athletes foot)
ringworm of the foot
Hookworm disease

C.A.
necator americanus
Hookworm disease

Life cycle
**An infected human defecates outdoors where eggs of hookworm are found in feces.
**under favorable conditions, eggs hatch
**baby larvae mature to infective (third stage) juvenile larva
**while barefoot, I step in feces contaminated with infective larva
**infective juveniles penetrate skin via small cuts in the feet
**juveniles make their way up the trachea where they are coughed up and swallowed
**Juveniles enter the small intestine where they attach and mature into adults
**Hookworms feed on blood and reproduce
**I defecate outdoors, passing eggs in the stool and continue the cycle
Plague

C.A
yersinia pestis
Plague

carrier
flea
Typhus fevers

C.A
rickettsia
Typhus fevers

carrier
body lice
Spotted fever
(Rocky mountain fever, rash on palms and soles)

C.A.
Rickettsia rickettsii
Spotted fever
(Rocky mountain fever, rash on palms and soles)

carrier
infected ticks
Yellow fever

C.A.
virus
Yellow fever

carrier
mosquito
Encephalitis
(Easter, western and Venezuelan equine, st. louis encephalitis)

C.A.
virus
Encephalitis
(Easter, western and Venezuelan equine, st. louis encephalitis)

carrier
mosquito
Malaria

C.A.
plasmodium
Malaria

carrier
mosquito
Trypanosomiasis
(African sleeping sickness)

C.A.
trypanosoma
Trypanosomiasis
(African sleeping sickness)

carrier
tsetse fly
Anthrax
(systemic)

C.A
bacillus anthracis
Anthrax
(systemic)

Sx
*skin infection begins as a raised itchy bump
*evolves to depressed, large black eschar
*surrounding tissue inflames as a pustule, grows and becomes:
*ulcerated and necrotic
*infection spreads via bloodstream causing septicemia - if untreated: shock and death
*LD20 if untreated
*inhalation = usually fatal
*intestinal = LD25-60
Anthrax
(systemic)

Tx
ABC
Anthrax
(systemic)

reservoir
haired domestic and farm animals
Anthrax
(systemic)

transmission
*direct contact w/infected animal
*indirect contact via contaminated animal products, soil, fomites
*spores can be injected, inhaled and injested
Anthrax
(systemic)

prevention
*animal vax
*isolation
*vax = unreliable
Rabies
(hydrophobia)

C.A.
virus
Rabies
(hydrophobia)

Sx
*fever, headache, malaise
*muscle spasms (neck and throat)
*seizure and respiratory paralysis follow
*survival rate rare
*bite location affects incubation
Rabies
(hydrophobia)

Tx
hyperimmune antirabies serum
**vax only effective prior to onset of Sx
Rabies
(hydrophobia)

reservoir
animals (dogs, bats, other carnivores)
Rabies
(hydrophobia)

transmission
bite of infected animal
Rabies
(hydrophobia)

prevention
animal immunization
Tetnus
(lockjaw, systemic)

C.A.
clostridium tetani
Tetanus
(lockjaw, systemic)

Sx
*jaw/neck stiffness
*difficulty swallowing
*spasm of the neck, back and abdominal muscles
*spasms of respiratory muscles may cause acute asphyxia
Tetanus
(lockjaw, systemic)

Tx
tetanus antitoxin and ABC
hyperbaric chamber
Tetanus
(lockjaw, systemic)

reservoir
endogenous to human intestinal tract
soil
Tetanus
(lockjaw, systemic)

transmission
puncture wound or other injury
Tetanus
(lockjaw, systemic)

prevention
DTaP (2,4,6,18 mths 4-6 years
booster every 10 years
Gas Gangrene
(systemic)

C.A.
clostridium perfringens
Gas Gangrene
(systemic)

Sx
*tissue necrosis
*severe anemia and toxemia
*tissue decomposition caused by gas production
Gas Gangrene
(systemic)

Tx
penicillin
debridement
Gas Gangrene
(systemic)

reservoir
endogenous to human intestinal tract
soil
Gas Gangrene
(systemic)

transmission
puncture wound or other injury
Gas Gangrene
(systemic)

prevention
isolation