The test for cow's milk mastitis sounds a lot like the methylene blue dye test (google for many science fair projects for students). My son was the first one to use it on human milk and donor milk 3 years ago. Abstract link below. It tests for aerobic bacterial levels, not WBC. _http://www.usc.edu/CSSF/History/2005/Panels/J13.html#J1337_ (http://www.usc.edu/CSSF/History/2005/Panels/J13.html#J1337) Nancy E. Wight MD, IBCLC, FABM, FAAP Neonatologist Medical Director, Lactation Services Sharp Mary Birch Hospital for Women San Diego, CA USA [log in to unmask] ************************************** See what's free at http://www.aol.com. *********************************************** Archives: http://community.lsoft.com/archives/LACTNET.html Mail all commands to [log in to unmask] To temporarily stop your subscription: set lactnet nomail To start it again: set lactnet mail (or [log in to unmask]) To unsubscribe: unsubscribe lactnet or ([log in to unmask]) To reach list owners: [log in to unmask]