 [ Symptoms ] how many doses of recephin are safe for child my 5 year old was diagnosed with e coli and has had 3 shots of rocephin but still has a trace of blood and leuks is it safe to give her more [ Disease ] yes it is safe but may not be necessary i am assuming this is a urinary tract infection so a trace of blood or leukocytes may not be clinical significant now but if the medical provider determines another rocephin injection is needed it is safe