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Pathogen Table

Terms in this set (14)

Dermatophytes
-Class
-disease
-Virulence
-epidemiology
-Class:Fungi; live on skin and nails


-Disease:Ringwork, aka tinea, such as jock itch or athlete's foot


-Virulence: Proteases degrades skin Inflammation
Degrade keratin


-Epidemiology: Most common in children Spread by fomites, zoonoses,
autoinoculation
Candida albicans
-Class
-disease
-Virulence
-epidemiology
-Class:dimorphic yeast

-Disease:causes yeast infections such as thrush


-Virulence:has adhesins, invasins, colonization factors;


-Epidemiology: common in immunocompromised or if normal flora is disrupted
Staphylococcus
aureus
-Class
-disease
-Virulence
-epidemiology
-Class: gram positive cocci;


-Disease: impetigo and SSS, stys, boils, carbuncles


-Virulence:toxins, coagulase, kinases


-Epidemiology: anyone can
be affected although kids are most likely to get skin infections from Staph.
Staphylococcus
epidermidis
-Class
-disease
-Virulence
-epidemiology
-Class:gram positive cocci


-Disease:
normal skin flora

-Virulence:
rarely causes disease because it doesn't have a ton of virulence
factors

-Epidemiology: immunocompromised from recent surgery
Streptococcus
pyogenes group A
-Class
-disease
-Virulence
-epidemiology
-Class: gram positive cocci


-Disease: strep throat, cellulitis, necrotizing fasciitis


-Virulence:makes hyaluronidase, kinase,
hemolysins, collagenase to break down tissues


-Epidemiology: Can cause invasive disease in anyone, especially if they have a
wound or previous strep infection
Clostridium
perfringens
-Class
-disease
-Virulence
-epidemiology
-Class: gram positive, anaerobic spore forming rod


-Disease: related to C. diff; causes gas gangrene and foodpoisoning


-Virulence: Has collagenase and strong toxins


-Epidemiology: people at risk are anyone with a serious wound, recent surgery
especially. Can rapidly cause sepsis, and destroy tissue quickly
Pseudomonas
aeruginosa
-Class
-disease
-Virulence
-epidemiology
-Class: gram negative bacillus, aerobic, lives in water and soil


-Disease: Causes swimmers ear, hot tub rash, and
commonly burn wounds.


-Virulence: Usually opportunistic in nature. Biofilms, toxins, natural antibiotic and disinfectant
resistant


-Epidemiology: Most often acquired in the hospital setting
Measles (rubiola)
-Class
-disease
-Virulence
-epidemiology
-Class:


-Disease: the rubiola virus; causes a macular rash

-Virulence: most harmful to little babies, due to complications like
encephalitis. There is no cure; there is a vaccine; presents like a cold at first;


-Epidemiology: highly contagious
Rubella (German
measles)
-Class
-disease
-Virulence
-epidemiology
-Class:


-Disease: rubella virus


-Virulence: milder than measles but dangerous for pregnant women


-Epidemiology:
Herpes simplex 1
and 2
-Class
-disease
-Virulence
-epidemiology
-Class:
(1) cold sores
(2) genital herpes


-Disease:HSV1 is believed to be the most common virus in
the world


-Virulence:Very common, contagious during outbreaks only; causes a vesicular rash


-Epidemiology: Latent so it hides in nerves to
be reactivated later; no vaccine
Human papilloma
viruses (HPV)
-Class
-disease
-Virulence
-epidemiology
-Disease: Human papilloma virus causes warts (papilloma). Many different strains, that cause body warts, foot warts, or
genital. Some strains have been linked to cancer


-Virulence:


-Epidemiology: There is no treatment, but there is a vaccine that protects against
most clinically relevant strains
Varicella (chicken
pox)
-Class
-disease
-Virulence
-epidemiology
-Disease: Varicella virus


-Virulence:typically mild disease but adults can get really sick.


-Epidemiology:Causes a vesicular rash that fills
with pus and then scabs over
Herpes zoster
(shingles)
-Class
-disease
-Virulence
-epidemiology
-Class:


-Disease: Shingles


-Virulence:Bigger blisters than chicken pox, usually
rise up along the nerves; very painful, There is a vaccine


-Epidemiology: elderly most at risk, or people that get really stressed out.
Chlamydia
trachomatis
-Class
-disease
-Virulence
-epidemiology
-Class: It is an obligate intracellular gram negative bacterium


-Disease:
Trachoma

-Virulence:
this disease leads to scarring of the eyelids and cornea; can
cause blindness if untreated. Linked to poor hygiene and sanitation
-Epidemiology: Linked to poor hygiene and sanitation
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