Yellow-ish white stuff is oozing from the chicken's vent. We have a mixed flock of laying hens, four of which are Americanas. One of those Americanas had this stuff oozing from her vent - we looked it up, deduced it must be gleet, which we understand to be a yeast infection, but didn't catch it in time - she died a few days later. Now another of our Americana's has it. We cleaned her girly parts, gently douched her with vinegar water, isolated her from the flock, put a little vinegar in her water, gave her yogurt with grubs to eat... She's lethargic, uninterested in food. What is this? What can be done? And are Americana's prone to it, or is it just a coincidence that the next to get it was also an Americana?