no history of fever
, urine showing pus cell is not normal abt urine culture report either urine sample is late processed or there is contaminant growth.
you did,t mention abt the problem for which opretion was done or whether baby was taking any drug or not.
consult you doctor about full evaluation that include complete blood count
, urine evaluation ultrasound
KUB, renal function test most probably it is UTI and you should start antibiotic along with surgical openion abt reexploration