Term
|
Definition
| The major immunoglobulin in secretions; usually found as a dimer. |
|
|
Term
|
Definition
| The most common class of antibody in the blood; can cross the placenta. |
|
|
Term
|
Definition
| First antibody produced to a new antigen; usually found as a pentamer. |
|
|
Term
|
Definition
| The only class which is not secreted; found only on the surface of B cells. |
|
|
Term
|
Definition
| Binds avidly to mast cells and basophils; involved in allergies. |
|
|
Term
|
Definition
| The cause of pharyngitis, scarlet fever, rheumatic fever, and necrotizing fasciitis; Lancfield Group A. |
|
|
Term
| Staphlococcus epidermidis |
|
Definition
| The most common organism on the skins's surface; an opportunistic pathogen that causes disease in immuno-compromised patients or when introduced into sterile body sites. |
|
|
Term
|
Definition
| Causes neonatal bacteremia, meningitis, and pneumonia |
|
|
Term
|
Definition
| Causes otitis media, pneumonia (85% of all cases), and meningitis; large polysaccharide capsule is the main virulence factor; produces an IgA protease. |
|
|
Term
|
Definition
| Lancefield Group D; can grow in harsh conditions(45 C, pH of 9.6, 6.5%NaCl); resistant ot many commonly used antibiotics; cause, bacteremias, endocarditis, and UTI's |
|
|
Term
|
Definition
| Produce the matrix of denatl plaque and cause dental caries; Lack group-specific carbohydrates and not Lancefiled typeable. |
|
|
Term
|
Definition
| Causes boils, carbuncles, scalded skin syndrome, and toxic shock syndrome. |
|
|
Term
|
Definition
| Produces protein A, a substance that thwarts phagocytosis by binding the Fc region of IgG. Also produces coagulase |
|
|
Term
|
Definition
| MRSA refers to this organism |
|
|
Term
|
Definition
| produces the protein M, a substance that inteferes with opsonization and lysis by destabilizing complement |
|
|
Term
|
Definition
| An anaerobe that produces a potent toxin that causes lockjaw or spasitc paralysis(muscles stay contracted) |
|
|
Term
|
Definition
| Lack cytochromes, enzymes of the Krebs cycle, and cell walls; have sterols in their cytoplasmic membranes; are pleomorphic and are the smallest free-living microbes; cause primary atypical pneumonia and non-gonococcal urethritis. |
|
|
Term
|
Definition
| Divide by snapping division to produce palisade arrangements; causes the disease diphtheria marked by a pseudomembrane in the throat; humans are the only know host for this organism. |
|
|
Term
|
Definition
| The agent of Hansen's disease; can occur in two forms: tuberculoid and lepromatous; nerve destruction is prominent. The organism cannot be grown in cell-free media, but can be grown in armadillos, which may serve as a disease reservoir. |
|
|
Term
|
Definition
| Associated with a black eschar lesion. Can cause disease in the skin, lungs, or gastrointestinal tract. |
|
|
Term
|
Definition
| An anaerobe that can cause mild food poisoing or life-threateining gas gangrene |
|
|
Term
|
Definition
| An anaerobe that produces toxins causing a life-threatening pseudomembranous colitis, often following broad-spectrum antibiotic treatment; frequently found and transmitted in hospitals. |
|
|
Term
| Mycobaterium tuberculosis |
|
Definition
| An acid-fast bacterium associated with caseous necrosis and Ghon complexes; over one-third of the worlds population is infected with this organism; disease was once called consumption. |
|
|
Term
|
Definition
| An anaerobe that produces the most potent poison known; causes flaccid paralysis (muscles cannot contract) |
|
|
Term
|
Definition
| Avoids the immune system by escaping the phagosome and living in the cytosol; produces no toxins; can cause meningitis. Pregnant women, fetuses, and newborns are more susceptible to disease. |
|
|
