We have never had it here either. Over 8 years in cloth and 15 years with kids in diapers and we have never had it.
My first had thrush right after she was born but it was passed to her from me during delivery. It was cleared in 3 days.
Katie, mom to Olivia (97)
, Veda (98)
, Franky (2004)
, Wendy (2005), JoHannah (2007), Thea (2009) and NEW baby Sunny Ella 12/6/2011