It's a middle way as everything is "rapid". Of course API 20E is the best way to identify enterics. Bye Saro "Ludek Zurek" <ludek_zurek at ncsu.edu> ha scritto nel messaggio news:3A38E611.CEE1A93A at ncsu.edu... > How reliable is API Rapid20E for identification of enterics? It's > suppose to take only 4 hours to get results. Any experience?? > > > ---