Abstract

Serratia fonticola and Serratia odorifera are highly multi drug resistance like other opportunistic pathogen associated with nosocomial infection, we were collected 200 urine samples all of them cultured on selective media, all isolates were highly resistant100% to beta-lactam antibiotics Cephalothin, Ceftriaxone, Amoxicillin, Ceftazidime and fluoroquinolone Norfloxacin and Ciprofloxacin, the resistance for, Aztreonam, Levofloxacin, were 50% and Nitrofurantoin 25% The concentration of Minimum Inhibitory test for Nitrofurantoin is 50 µg/ml and for Levofloxacin is 100 µg/ml. Depending on identification by automated system (VITEK2) we obtained respectively Serratia fonticola and Serratia odorifera (94% and 89%). The molecular detection of gyrB gene showed that 75% of isolates were owen this gene at 910bp.