Bacteria AKA and Virulent Factors

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Last updated: November 25, 2025

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Hint	Answer
Bacillus cereus AKA	Fried rice bacillus
Corynebacterium diphtheriae AKA	Klebs-Loeffler bacillus
Klebsiella pneumoniae AKA	Friedlander’s bacillus
Haemophilus influenzae AKA	Pfeiffer’s bacillus
Haemophilus aegypticus AKA	Koch-weeks bacillus
Vibrio cholera AKA	Kommabacillus
Brucella abortus AKA	Bang’s bacillus
Mycobacterium gordonae AKA	Tap water bacillus
Mycobacterium terrae AKA	Raddish bacillus
Mycobacterium avium subsp. paratuberculosis AKA	Johne’s bacillus
Mycobacterium avium subsp. silvaticum AKA	Wood pigeon bacillus
Mycobacterium gastri AKA	J bacillus
Mycobacterium tuberculosis AKA	Koch’s bacillus or tubercle bacillus
Mycobacterium leprae AKA	Hansen’s bacillus
Mycobacterium ulcerans AKA	Inert bacillus
Mycobacterium avium-intracellulare complex (MAC) AKA	Battey’s bacillus
Mycobacterium kansasii AKA	Yellow bacillus

Hint	Answer
Staphylococcus epidermidis VF	glycocalyx
Staphylococcus saprophyticus VF	urease
Streptococcus pyogenes VF	M protein
Streptococcus agalactiae VF	Polysaccharide capsule
Streptococcus pneumoniae VF	Polysaccharide capsule
Bacillus anthracis VF	Glutamic acid capsule (poly-D-glutamic acid)
Yersinia pestis VF	F1 capsule (antiphagocytic) Yersinia outer proteins (Yops) Type III secretion systems
Vibrio cholerae VF	Choleragen
Vibrio parahaemolyticus VF	Thermostable direct hemolysin (TDH)
Helicobacter pylori VF	Urease
Helicobacter pylori in gastric carcinoma VF	CagA protein
Mycobacterium tuberculosis VF	Trehalose dimycolate
Mycobacterium ulcerans VF	Myolactone
Clostridium perfringens VF	Alpha-toxin (lecithinase)
Clostridium difficile VF	Enterotoxin A and/or cytotoxin B
Clostridium botulinum VF	Botulism toxin
Clostridium tetani VF	Tetanospamin

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