Mycoplasma mastitis: a review of transmission and control.
J Vet Med B Infect Dis Vet Public Health. 2005 May;52(4):153-60. Fox LK, Kirk JH, Britten A.
The Mycoplasma sp. that cause mastitis are simple, cell wall-less, bacteria that can colonize and cause diseases in other extramammary sites in the bovine. Prevalence of mycoplasma mastitis appears to be increasing in many locations throughout the world. ...Current data suggests that a significant number of new outbreaks may occur via internal or animal-to-animal transmission of mycoplasma mastitis pathogens from asymptomatic carriers.