This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteriology, Subject name: Microbiology
Most common cause of UTI in a neonate is 
Select and explain. 
A. E.coli, B. S. aureus, C. Enterococcus, D. Anerobes
A: E.coli
Answer: A: E.coli 
Explanation: Causative agents of UTI:Uncomplicated UTIComplicated UTI*E.coli *Klebsiella*Proteus species*Enterobacter*Staphylococcus saprophyticus*Enterococci *Chlamydia , Neisseria *Ureaplasma, Mycoplasma . Adenovirus *E.coli *Klebsiella*Proteus species*Serratia marcescens*Pseudomonas *Enterococci Staphylococci Ref:Harrison's infectious disease 2nd edition, p296