Hope they made space for the porta-pottie. I spent a month there in 07, and learned new words like "black tarry stools".

When you're away from the big cities be prepared---get all of your shots ($$$) Bring Antibiotics like "Bactrim", your life may depend on it!!!!!!!!!
You can't drink any water, any where! that's not bottled or boiled. Stay away from antacids/PPI's/Pepcid, etc. Try not to alter your systems PH. Trust me on this one. Eat fried foods!, Use Imodium carefully, bottom line, they have bugs there your system hasn't seen before. Parts of China have to be considered septic...period, and you won't see any outhouse's in the fields. You can figure that one out.
The last thing you want is case of fiery, infectious squirts in a unisex/no stall/Chinese squat toilet (still everywhere in China). Ladies, Google "whizzy", another life saving tip! Flushable baby wipes, a gift from the gods. An added note, tour buses don't have toilets, just anxiety.
Even some big cities like Xian (terra/cotta warriors) are considered dirty by Chinese standards, its no fun when you dare not leave the sight of your hotel. Will someone please use a pressure washer on China!!! And put soap in it!! too. I watched parents allow their child to shit on the sidewalk and simply walk away (Kunming), excuse me!!!!! WTF.. That's just wrong! And whats up with the kiddie pants split up the crotch?
I loved China and I'd go back in a heart beat, I found it to be a fascinating trip of a lifetime. I only wish my most vivid memories were not centered on elimination.
