| 
   Media 
  
  à 
    
  ---------- 
  Org. 
  ß 
    
   | 
  
   Trans- 
  port 
  Media. 
   | 
  
   Nutrient 
  Agar 
  (Ordinary 
  Media) 
  (NA) 
   | 
  
   Blood 
  Agar  
  (BA) /  
  Chocholate 
  Agar   (CA) 
   | 
  
   Mac- 
  Conkey 
  Medium 
  (Lactose-ferm’n) 
   | 
  
   Selective / 
  Enriched / 
  Enrichment 
  Media. 
   | 
  
   Remarks 
   | 
 
 
  | 
   Staph. 
  Aureus/Pyogenes 
  & Staph 
  Albus / Epidemidis 
   | 
  
     
   | 
  
   Golden Yellow 
  Colonies 
   | 
  
   
  b-Hemolysis 
  (Complete) 
  (BA) 
   | 
  
   Pink Colonies 
  (+ve) 
   | 
  
   --Black colonies on K-Tellurite media. 
  --Ludlam’s medium( salt
  milk agar) 
   | 
  
     
   | 
 
 
  | 
   Strepto. 
  Pyogenes 
  (Group A) 
    
    
   | 
  
     
   | 
  
     
   | 
  
   
  a
  / 
  b Hemolysis 
  ( BA ) 
  
  a-hemolysis 
  strepto.viridans 
   | 
  
     
   | 
  
     
   | 
  
   Dick test 
   for Scarlet-fever 
   | 
 
 
  | 
   Strepto.pneumoniae 
    
    
   | 
  
     
   | 
  
     
   | 
  
   
  a-Hemolysis 
  Greenish discolouration around
  colonies. 
   | 
  
     
   | 
  
     
   | 
  
   Carrom Coin app. 
  -Quellung 
  reaction.-capsule 
   | 
 
 
  | 
   N.meningitidis 
    
  Meningococci         
   
    
   | 
  
     
   | 
  
     
   | 
  
   BA / CA used 
  Translucent  
  Convex colonies 
   | 
  
     
   | 
  
     
   | 
  
     
   | 
 
 
  | 
   N.gonorrhoea 
    
  Gonococci 
   | 
  
   Stuart’s 
  Transport media 
   | 
  
     
   | 
  
   BA / CA used 
  Translucent  
  Round colonies 
   | 
  
     
   | 
  
   Thayer-Martin 
  Media (  with              
  Vancomycin, Nystatin, Colistin ) 
   | 
  
   5-10%CO2 
  ( Candle jar used )  
    
   | 
 
 
  | 
   Cornyb. 
  diptheria 
    
    
    
   | 
  
     
   | 
  
     
   | 
  
   BA 
   | 
  
     
   | 
  
   --Loeffler’s Serum slope 
  --K-Tellurite Blood agar
  (0.04%) 
  ( Macleod & Hoyle’s
  media)  
   | 
  
   Albert’s Stain for Metachromatic granules. 
  Shick-test( diphteriasusceptibility ) 
  Elek’s gel ppt. Test & Guinea pig inoculation—for
  Toxigenicity / virulence. 
    
   | 
 
 
  | 
   Mycobacteria  
  TB. 
    
    
    
    
      
   | 
  
     
   | 
  
     
   | 
  
     
   | 
  
     
   | 
  
   --Lowenstein Jensen(L.J.) 
  solid media. 
  --Dubos Liquid media 
  --Loeffler’s serum slope 
  --Petroff’s medium 
  --Dorset’s Egg  
  medium 
   | 
  
   -Auramine & Rhodamine staining for Fluorescent
  microscopy. 
  -NAP test +ve, Niacin
  test & Neutral Red test +ve 
   | 
 
 
  | 
   Mycobacteria 
  Leprae. 
    
    
    
    
   | 
  
     
   | 
  
     
   | 
  
     
   | 
  
     
   | 
  
   --Foot Pad of Mice ( 20oC) 
  --Nine Branded Armadillo. 
  --Human Foetal spinal Ganglion
  Cells 
   | 
  
   Do not grow in cell
  free culture 
   | 
 
 
  | 
   Spirochaetes. 
    
    
    
   | 
  
     
   | 
  
     
   | 
  
     
   | 
  
     
   | 
  
   -No cultivation 
  --Only Dark Ground Microscopy
  of Smears . 
   | 
  
   Fontanas Method  
  (smears) 
  Levaditi 
  Staining 
  (tissue section) 
  Nichol’s Strain ( Rabbit Testes) 
   | 
 
 
  | 
   Chlamydia Trachomatis. 
    
    
    
    
    
   | 
  
     
   | 
  
     
   | 
  
     
   | 
  
     
   | 
  
   -Do not grow in cell-free media. 
  --obligate intracellular org. 
   | 
  
   -Inclusion bodies 
  in Giemsa stain smears 
  --ELISA. 
   | 
 
 
  | 
   Salmonella Typhi 
    
    
    
    
    
   | 
  
     
   | 
  
   NA. 
   | 
  
     
   | 
  
   Colourless  
  Colonies. 
   | 
  
   -Selenite F & 
  - Tetrathionate broth. 
  -Deoxycholate citrate agar 
  -Wilson&Blair
  medium(black colonies-s.typhi&s.paratyphi B.) 
  --Blood culture-Ist.wk.+ve—TSB- 
  Trypsicase soy broth 
  -Bile broth  
  Castaneda’s double medium. 
    
    
   | 
  
   Widal testà 
  (+ve at end of 1st
  wk.) 
  ‘O’titre 
  > 1: 100 
  & ‘H’titer 
  > 1:200 
  is significant. 
  NOTE:- 
  BASU
  1 2 3 4 wks. 
  B-blood 
  Culture 
  A-Antibody / WIDAL estm’n 
  S-stool 
  Culture 
  U-urine culture 
    
   | 
 
 
  | 
   Vibrio 
  Cholerae 
    
    
    
   | 
  
   1) VR- 
  venkatraam-ramakrishnan medium 
  2) Clary Blair medium 
   | 
  
   NA 
   | 
  
   BA-Partial  
  Hemolysis 
  ( greening) 
  ( eltor) 
   | 
  
   Colourless 
  colonies 
   | 
  
   1) Alkaline peptone water-surface pellicle 
  2) BSA-alkaline Bile Salt
  Agar,ph8.0) 
  3) TCBS medium- 
  Thiosulphate,citrate,bromthymaol
  bule & sucrose, 
  4) Monsur’s GTTA medium. 
   | 
  
   -String test 
  -Hanging drop  prep.-to see motility. 
  -strains- 
  Ogawa 
  Inaba 
  Hikojima 
  -Cholera red reaction- 
  nitroso-indole forma’n 
   | 
 
 
  | 
   Shigella 
    
    
    
   | 
  
     
   | 
  
     
   | 
  
     
   | 
  
   Colourless colonies 
  Except—Sh.sonnei( late lactose ferm’n) 
   | 
  
   -Deoxycholate citrate agar 
   | 
  
     
   | 
 
 
  | 
   E-coli 
    
    
    
   | 
  
     
   | 
  
     
   | 
  
     
   | 
  
   Pink 
  colonies 
   | 
  
     
   | 
  
     
   | 
 
 
  | 
   Klebsella 
    
    
    
   | 
  
     
   | 
  
     
   | 
  
     
   | 
  
   Pink 
  colonies 
   | 
  
     
   | 
  
     
   | 
 
 
  | 
   Proteus 
    
    
    
   | 
  
     
   | 
  
   NA 
  ( Swarming Growth) 
   | 
  
     
   | 
  
   Colourless colonies 
   | 
  
   Tetrathionate Broth 
   | 
  
   Swarming inhibited by 6% Agar & Sodium Azide. 
  --PPA test +ve 
  (deamination test) 
   | 
 
 
  | 
   Pseudomonas 
    
    
    
   | 
  
     
   | 
  
   NA 
  ( Greenish colonies—Pyocanin) 
   | 
  
     
   | 
  
   Colourless 
   | 
  
     
   | 
  
   Pigment produced are—Pyocyanin, Fluroscin, Pyoverdin, Pyomelanin. 
   | 
 
 
  | 
   Clostridium welchii 
    
    
    
   | 
  
   Stuart’s transport medium  
  & Thioglycollate
  broth. 
   | 
  
     
   | 
  
     
   | 
  
     
   | 
  
   Robertson’s cooked meat medium  
  ( this medium turns PINK) 
   | 
  
   -Subterminal spores 
  -Lecithinase effect—Nagler
  reaction. 
   | 
 
 
  | 
   Cl.Tetani 
    
    
    
   | 
  
   Stuart’s transport medium  
  & Thioglycollate
  broth. 
    
   | 
  
     
   | 
  
     
   | 
  
     
   | 
  
   Robertson’s cooked meat medium  
  ( this medium turns BLACK) 
   | 
  
   -Central spores 
  Drum stick app. 
   | 
 
 
  | 
   Citrobcater, 
  Enterobacter, 
  Serratia 
    
    
    
   | 
  
     
   | 
  
     
   | 
  
     
   | 
  
   Pink colonies 
   | 
  
     
   | 
  
     
   | 
 
 
  | 
     
    
    
    
   | 
  
     
   | 
  
     
   | 
  
     
   | 
  
     
   | 
  
     
   | 
  
     
   |