22.2 Flashcards
1
Q
Streptococcal Pharyngitis (strep throat)
A
- caused by Streptococcus pyogenes
- gram positive cocci
- hyaluronidase, collagenase, and streptokinase
- high Fever over 38 degrees Celsius
- scarlet fever (scarlatina) caused by erythrogenic toxin
- STSS massive superantigen production that leave to septic shock and feral
- amoxicillin and penicillin
2
Q
Sequelae of pyogenes infections
A
- acute rheumatic fever
- acute glomerulonephritis
3
Q
Acute rheumatic fever
A
- caused by strains 1,3,5,6,18 of S.pyogenes
- can cause inflammation of heart
4
Q
Glomerulonephritis
A
- damages and inflames the glomeruli
- occurs 6-10 or 21 days
5
Q
Acute otitis Media
A
Infection in the middle ear
- accumulation of pus in middle ear
- caused by S pneumoniae, H Influenzae, and M cattarhalis,
6
Q
Diphtheria
A
- caused by Corynebacterium diphteriae
- club shaped gram positive rod
- diphtheriae toxins make it pathogenic
- pseudomembrane: accumulation of dead cells, inflammatory response, grayish
7
Q
Bacterial pneumoniae
A
Caused by Streptococcus pneumoniae, H influnezae, and M
8
Q
Pneumococcal Pneumonia
A
- most common community acquired
- caused by Streptococcus pneumoniae
- gram positive diplococcus
- polysaccharide capsule
- pore forming protein pneumolysin O
- penicillin, vaccine also available
9
Q
Haemophilus Pneumonia
A
- nonencapsulated strains cause pneumonia
- gram negative coccobacillus
- primarily in elderly
- grows on chocolate agar
10
Q
Mycoplasma Pneumonia (walking pneumonia)
A
- caused by Mycoplasma pneumoniae
- common in crowded environments (college, military)
- mild symptoms
- no cell wall attach to Ciliated cells
- no cell wall = penicillin does not work
11
Q
Chlamydial Pneumoniad and Psittacosis
A
- caused by obligate intracelular Pathogens
- cause mild to severe pneumonia and bronchitis
- Chlamydiphila is most common
- Psittacosis is a zoonotic disease
- PCR test to identify
- treatment with tetracycline
