Mycoplasma spp

From Cow
Microabscess in the lung of a cow with Mycoplasma spp infection
Patchwork lobular consolidation in the lung of a one-day-old calf which died from Mycoplasmosis

Mycoplasma spp are wall-less prokaryotic epierythrocytic haemoplasma (to which Ehrlichia ondiri, Ehrlichia ruminantium and Anaplasma spp belong).

Mycoplasma are a pathogen causing respiratory disease, otitis media, arthritis, mastitis, and a variety of other diseases in cattle worldwide.

Species recognised in cattle include:

  • Mycoplasma bovis
  • Mycoplasma mycoides spp mycoides
  • Candidatus Mycoplasma haemobos[1]
  • Mycoplasma wenyonii

Mycoplasma bovis and Mycoplasma mycoides spp mycoides small colony (MmmSC) are causes of bovine mycoplasmosis and contagious bovine pleuropneumonia (CBPP), respectively, and are responsible for serious economic losses in cattle around the world[2].

Mycoplasma spp are incriminated in bovine diseases including:

Severe otitis externa and consequent deafness have also been reported associated with Mycoplasma infections.

Detection requires PCR analysis of samples.


  1. Ayling RD et al (2012) Detection of 'Candidatus Mycoplasma haemobos', Mycoplasma wenyonii and Anaplasma phagocytophilum from cattle in England. Vet Rec 170(21):543
  2. Bednarek D et al (2012) Serological survey to determine the occurrence of respiratory Mycoplasma infections in the Polish cattle population. Vet Rec 171(2):45
  3. White BJ et al (2012) Clinical, behavioral, and pulmonary changes in calves following inoculation with Mycoplasma bovis. Am J Vet Res 73(4):490-497
  4. Fox LK (2012) Mycoplasma mastitis: causes, transmission, and control. Vet Clin North Am Food Anim Pract 28(2):225-237