Haemophilus spp

From Dog
haemophilis influenza under light microscopy[1]

haemophilus spp are a Gram-negative aerobic proteobacteria which can cause disease in dogs and zoonotic infections from dog bite wounds[2].

Species which are pathogenic to dogs include:

Haemophilus spp are part of the normal microflora of the canine reproductive tract[6].

These bacteria are normally sensitive to amoxycillin/clavulanate and cephalosporins[7].


  1. ECDC
  2. Goldstein EJ et al (1992) Bite wounds and infection. Clin Infect Dis 14(3):633-638
  3. Stiegler D et al (2010) Fatal dog bite in the absence of significant trauma: Capnocytophaga canimorsus infection and unexpected death. Am J Forensic Med Pathol 31(2):198-199
  4. Wissing A et al (2011) The current antimicrobial resistance situation in Swiss veterinary medicine. Schweiz Arch Tierheilkd 143(10):503-510
  5. Kao PT et al (2002) Haemophilus aphrophilus brain abscess: a case report. J Microbiol Immunol Infect 35(3):184-186
  6. Watts JR et al (1996) Uterine, cervical and vaginal microflora of the normal bitch throughout the reproductive cycle. J Small Anim Pract 37(2):54-60
  7. Mori N et al (2001) AS-924, a novel, orally active, bifunctional prodrug of ceftizoxime: physicochemical properties, oral absorption in animals, and antibacterial activity. Int J Antimicrob Agents 18(5):451-461