Some common microbes

Streptococcus pyogenes

• PHaryngitis -> PHever and glomerulonePHritis
• Rheumatic fever SPECCulation -- Subcut, Polyarthritis, Erythema marginatum, Carditis, Chorea

Listeria monocytogenes

• Actin rocket for intercellular movement
• Only gram-POSITIVE with N-dotoxin

Actinomyces v. Nocardia

• SNAP -- Sulfa for Nocardia, Actinomyces use Penicillin
• Sulfur granules in A. israelli

Mycobacterium

• TB -- มา Ghon = primary
• M. kansasii -- Pulmonarii
• M. avium intracellurare -- evade inside cells = resistant (to drugs)
• M. leprae -- Leprosy, Lethal and Late in Lepromatous form

Lactose fermenter

• Lactose is KEE, McConKEE agar, Klebsiella, E.coli, Enterobacter;; laCtoSe -- Citrobacter, Serratia

NeisseriA -- IgA proteases
Haemophilus influenzae

• haEMOPhilus -- Epiglottis, Meningitis, Otitis media, Pneumonia
• haemophilVX -- factor V (NAD+), X (heme)

Pseudomonas

• PseuDOmonas -- Diabetic Osteomyelitis
• AIRuginosa -- need AIR, to burn

E. coli

• EInvasiveEC
• EHEC -- Hi! Shiga = Like
• EToxin/TravellerEC
• EPediatric/PlanarEC (without villi = flat plane)

Klebsiella -- Diabetic (and alcoholic too);; Kurrant (red currant) sputum
Salmonella v. Shigella -- Salmon swims, Shig (chick) flies = propel itself

• GALLbladder (Gall - a bird) eats Salmon
• Salmon Salfide

Yersinia enterocolitica -- Daycare
Rickettsiae -- Triad:- headache, fever, rash
Palm and sole rash -- CRS -- Coxsackie A, Rocky mountain, Syphilis
Weil-Felix reaction -- Rickettsia
Chlamydia trachomatis

• ABC -- Africa, Blind, Chronic
• L1-3 -- Lymphogranuloma venereum
• if Granuloma Inguinale -> Calymmatobacterium granulomatis

Mycoplasma pneumoniae -- age <30

Blastomycosis Buds Bones

Read more in USMLE step 1 First Aid