ADDITIONAL INFORMATIONS

Genus Bacillus

Spore forming Generally, aerobe

Clostridium

Spore forming Generally, anaerobe

B. anthracis

(+) Disjointed bamboo fishing rod appearance

Medusa / Lion head appearing colonies

Colonies with beaten egg white consistency

Inverted fir/pine tree pattern on gelatin media

VF:

• Capsule

• Triple Exotoxin

Proteus

Gram (-) rod ; (+) swarming

Oxidase (-)

V. vulnificus & V. alginolyticus

Gram (-) rod ; (+) swarming

Oxidase (+)

C. tetani & C. Septicum

Gram (+) rods ; (+) swarming

Mycoplasma

Fried egg appearing colonies on BAP

Y. pestis

Stalactite growth Flocculent growth

Y. enterocolitica

Bull’s eye appearing colonies

Oxidase (-)

Aeromonas

Bull’s eye appearing colonies

Oxidase (+)

Bordatella

Mercury droplet like colonies

E.coli

Greening metallic sheen on EMB

H. influenzae

Dew drop appearing colonies

Meningitis in children less than 5 yrs old

M. tuberculosis

Cauliflower like growth

M. xenopi

Bird’s nest appearing colonies

S. moniliformis

Puff balls / fluff balls growth on broth

A. israelii

Molar tooth appearing colonies

Aggregatibacter actinomycetemcomitans

Star shaped colonies

Enterobacter

Colonies with dark center

“Fish eye” appearance On EMB

M. catarrhalis

Hockey Puck colonies

M. bovis

Water droplet colonies

Listeria

Umbrella like growth on gelatin media

C. perfringens

Gas gangrene / myonecrosis

Pigbel disease (food poisoning)

C. botulinum

Flaccid paralysis (no movement)

VF: Botox

Floppy baby syndrome

C. tetani

Spastic paralysis (small movements)

VF: Tetanospasmin

C. difficile

Antibiotic associated diarrhea Pseudomembranous colitis

VF:

• Toxin A - Enterotoxin

• Toxin B - Cytotoxin

B. cereus

Food poisoning associated with consumption of contaminated rice meals

P. aeruginosa

Ventilator associated pneumonia

Green Metallic sheen on BAP

HACEK

Gram (-) agent of SBE

Viridans Strep

Gram (+) agent of SBE

Eikenella corodens

Human Bite wound

Clenched fist wound

SBE

N. gonorrhoeae

CLAP disease

Opthalmia neonatorum

M. catarrhalis

S. pneumoniae

H. influenzae

Agents of otitis media

[MSH]

S. pneumoniae

Meningitis in adults

S. minus

S. moniliformis

Agents of Rat Bite fever

R. quintana / B. quintana

Trench fever

C. burnetti

Q fever

C. trachomatis

TRIC agent

• TR = eye infection

• IC = Inclusion conjunctivitis

LGV Lymphogranuloma venereum = STD

M. leprae

Hansen’s disease (Leprosy)

G. vaginallis

Gram (V) Clue cells

Agent of bacterial vaginosis

E. rhusiopathiae

Erysipeloid

Butcher’s cut

M. ulcerans

M. marinum

M. haemophilium

Mycobacterium

Agents of skin disease

Helicobacter pylori

Gastritis, ulcer

Campylobacter coli

Campylobacter jejuni

Gram (-) rod agent of gastroenteritis

• (+) @ 42C