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<big><center>[[Infectious agents and parasites|'''BACK TO INFECTIOUS AGENTS AND PARASITES''']]</center></big>
<big><center>[[Infectious agents and parasites|'''BACK TO INFECTIOUS AGENTS AND PARASITES''']]</center></big>
<big><center>[[Bacteria|'''BACK TO BACTERIA''']]</center></big>
<big><center>[[Bacteria|'''BACK TO BACTERIA''']]</center></big>
*Morphologically variable Gram-negative bacilli, ranging from short rods to long filaments
*Morphologically variable Gram-negative bacilli, ranging from short rods to long filaments
*Oxidase negative
*Facultative anaerobes
*Depend on beta-nicotinamide adenine dinucleotide (NAD) and/or Haemin for growth
*Typically oxidase positive
*Depend on beta-nicotinamide adenine dinucleotide (NAD) (V factor) and/or Haemin (X fector) for growth
*Heated blood agar (Chocolate Agar) required for growth of NAD-dependent strains
*Heated blood agar (Chocolate Agar) required for growth of NAD-dependent strains
*Haemin-dependent strains grow on Blood Agar
*Haemin-dependent strains grow on Blood Agar
===''Haemophilus paragalinarum''===
===''Haemophilus paragalinarum''===
*Conjunctivitis in poultry
*Infectious coryza of poultry
===''Haemophilus influenzae''===
===''Haemophilus influenzae''===
*Human respiratory disease
*Human meningitis, septicaemia, bronchopneumonia, conjunctivitis, epiglottitis, and otitis