This digitally-colorized scanning electron micrograph (SEM) depicted large numbers of Gram-positive Enterococcus faecalis sp. bacteria.
“Enterococci, leading causes of nosocomial bacteremia, surgical wound infection, and urinary tract infection, are becoming resistant to many and sometimes all standard therapies. New rapid surveillance methods are highlighting the importance of examining enterococcal isolates at the species level.”
Credit: Pete Wardell, CDC
"Multiple-Drug Resistant Enterococci: The Nature of the Problem and an Agenda for the Future" - 1998 (http://www.cdc.gov/ncidod/eid/vol4no2/huycke.htm)