Staphylococcus warneri

Staphylococcus warneri is a member of the bacterial genus Staphylococcus, consisting of Gram-positive bacteria with spherical cells appearing in clusters. It is coagulase-negative and is a common commensal organism found as part of the skin flora on humans and animals
http://en.wikipedia.org/wiki/Staphylococcus_warneri

Staphylococcus epidermidis

Staphylococcus epidermidis is one of thirty-three known species belonging to the genus Staphylococcus. It is part of our skin flora, and consequently part of human flora. It can also be found in the mucous membranes and in animals. Due to contamination, it is probably the most common species found in laboratory tests.[1]
http://en.wikipedia.org/wiki/Staphylococcus_epidermidis

Ochrobactrum antropi

Ochrobactrum anthropi is a non-fastidious, non-fermenting, Gram-negative cocco-bacillus.It is an emerging nosocomial pathogen, which has been found in environmental and hospital water sources.It has been reported to cause bacteraemias in immunocompromised patients, particularly oncology patients with indwelling catheters.Occasionally, probably because of its ability to survive in water supplies, epidemic outbreaks occur.
Ochrobactrum anthropi is resistant to most cephalosporins and penicillins due, at least in part, to the inducible expression of a single ß-lactamase.
http://jac.oxfordjournals.org/cgi/content/full/47/6/745


This organism is widely distributed in the environment, in soil, plants, and water sources including normal saline and antiseptic solutions, dialysis liquids, swimming pools, etc..
http://www.nih.go.jp/JJID/59/264.pdf