Table 1.

Table 1.

The bacterial species isolated from the chronic infection tissue: their pathogenicity and ability to form biofilms
Bacterial species	Pathogenicity*	Biofilm-forming ability†
P. fluorescen s complex [31]	Opportunistic pathogen	Active biofilm formation on human cells
S. lugdunensis	Opportunistic pathogen	Active biofilm formation on medical devices [34]
A. viridans	Opportunistic invasive pathogen [36]	Not known to produce or be involved in biofilms
B . pumilus ‡	Exceptional pathogen [37-39]	Only known for aquatic environments [41]
K. marina ‡	Emerging opportunistic and nosocomial pathogen [43-44]	Known not to produce biofilms in humans [43]
S. epidermidis	Opportunistic and nosocomial pathogen	Biofilm-forming ability on inserted devices [47]
S. capitis	Opportunistic and nosocomial pathogen	Biofilm-forming ability on inserted devices under certain conditions [47]
*Strains are pathogenic in wounds, as well as in other systemic infections. tbl1fn2††Ability to form biofilm as a single species on human tissue, as well as on other environmental niches including plants. tbl1fn3‡Different species within the same genus, namely K. kristinae [ 45 ] or B. subtilis [ 41 ], are known as active biofilm producers in human infections.