- GRAM-NEGATIVE RODS
- NONMOTILE
- NONSPOREFORMING
- CATALASE: POSITIVE
- OXIDASE: NEGATIVE
- FACULTATIVELY
- ANAEROBIC
- requirement of X+V factor in cultivation media
- X = hematin
- V = nicotinamide adenine
- dinucleotide(NAD)
- growth on chocolate agar but not on blood agar

