A pseudo-epidemic involving bone allografts.

@article{Mermel1994API,
  title={A pseudo-epidemic involving bone allografts.},
  author={Leonard A Mermel and Stephen L. Josephson and Carbone Giorgio},
  journal={Infection control and hospital epidemiology},
  year={1994},
  volume={15 12},
  pages={
          757-8
        }
}
Preimplantation cultures of four sterile bone allograft specimens grew Comomonas acidovorans and Pseudomonas species. An epidemiological investigation, including molecular subtyping methods, revealed that the allograft specimens were contaminated in a microbiology laboratory sonicator water bath. 
BETA