Excellent - I just wanted to make sure.
To be 100% honest, as Dr. Lee said above - E.Coli is something that is in the environment - all over.
Every day you and I come in contact with it - the escalator railing, the doorknob we touch, etc.
This is why companies such as Purell are making a fortune with antibacterial hand soaps.
There is not one specific place or 1 specific location to clean.
It is actually quite rare for a cat to get a UTI in general...but if they do, both cats and dogs - E.Coli is the most likley strain of bacteria to get.
Many times it is an ascending infection - from contamination from their feces if they have diarrhea
or they can even groom themselves - anus first then genital area...
I would not become overly concerned as E.Coli is the most common type of bacteria and likely with several weeks of antibiotics will be eradicated from the bladder and urinary tract.
Please let me know if this helps!_____________________________________________________________________
Please click "ACCEPT" if the information I have provided has been of help so I receive credit for my work. Bonuses are always welcome and appreciated. Thank you.The above is given for information only. Although I am a licensed veterinarian, I cannot legally prescribe medicines or diagnose your pet's condition without performing a physical exam. If you have concerns about your pet I would highly advise contacting your regular veterinarian.