What is the life span of pantoea on the skin? my dermatologist swabbed my cystic acne and this bacteria was the result. did it cause the acne?

Pantoea agglomerans: Formerly called Enterobacter agglomerans, this bacteria is an opportunistic pathogen causing wound, blood, and urinary-tract infections almost always only in immunodeficient patients. It is isolated from plant surfaces, seeds, fruit and animal or human feces. This does not cause acne and is of doubtful significance under these circumstances.

Uncertain: Pantoea(Enterobacter) agglomerans is a gram negative bacteria which is is found on plants, in soil and feces and occasionally causes human infection. Of the 1000 species of bacteria that can be found on skin, Pantoea is much less commonly found than several other bacteria. I couldn't find reference to it causing acne but it's possible. Since bacteria multiply there is no "life span" as such.