Quarantine procedures

[EL Ziggy]

Hello all, I plan on going to the Repticon expo this weekend and if all goes well I'll be bringing home a new addition. I was wondering how you all go about your quarantine process. Does this mean the new snake shouldn't be in the same room as the others? I don't understand how being in another room of the same house will prevent the transmission of any parasites or airborne illnesses. How long do you all keep new reptiles in QT? I've heard anywhere from 3-6 months. I've also heard that separate feeding tongs should be used for new animals. Any other precautions I should take? Thanks for any helpful info.