Tuesday, 26 May 2015

Microbiology High Yield

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B19 virus: at-risk groups
B19 affects 3 B's:
Babies (5th disease, infectiousum erythematosa)
Black Bleeders (sickle cell anemics - anaplastic anemic crisis)
Bearing Babies [pregnant women] (hydrops fetalis)
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IgA protease-producing bacteria
"Nice Strip of Ham":
Neisseria
Streptococcus pneumonia
Haemophilus influenza
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Hemophilius: culture requirements
Read Hemophilus as "HemoFive":
· Needs Heme with Factors Five and Ten.
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DNA viruses: morphology rule of thumb
DNA:
Double-stranded
Nuclear replication
'Anhedral symmetry
· Rule breakers: pox (cytoplasmic), parvo (single-stranded).
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Streptococcus pyogenes: virulence factors
SMASHED:
Streptolysins
M protein
Anti-C5a peptidase
Streptokinase
Hyaluronidase
Exotoxin
DNAses

Food poisoning: bugs inducing
"Eating Contaminated Stuff Causes Very Big Smelly Vomit":
E. coli O157-H7 [undercooked meat, esp. hamburgers]
Clostridium botulinum [canned foods]
Salmonella [poultry, meat, eggs]
Vibrio parahaemolyticus [seafood]
Bacillus cereus [reheated rice]
Staphylococcus aureus [meats, mayo, custard]
Clostridium perfringens [reheated meat]
Vibrio vulnificus [seafood]
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