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*''Haemophilus sommus'' in [[Bacterial infections#Enzootic pneumonia of calves|Enzootic pneumonia of calves]]
*''Haemophilus sommus'' in [[Bacterial infections#Enzootic pneumonia of calves|Enzootic pneumonia of calves]]
*''H. pleuropneumonia'' in [[Bacterial infections#Contagious porcine pleuropneumonia|Contagious porcine pleuropneumonia]]
*''H. pleuropneumonia'' in [[Bacterial infections#Contagious porcine pleuropneumonia|Contagious porcine pleuropneumonia]]
===''Haemophilus characteristica''===
*Morphologically variable Gram-negative bacilli, ranging from short rods to long filaments
*Oxidase negative
*Depend on beta-nicotinamide adenine dinucleotide (NAD) and/or Haemin for growth
*Heated blood agar (Chocolate Agar) required for growth of NAD-dependent strains
*Haemin-dependent strains grow on Blood Agar
*Do not grow on MacConkey agar
*Inhabit mucosal epithelium of respiratory and genital tract
===''Haemophilus parasuis''===
*Serotype B causes