Hi, I have an 8 week old chick that developed walking problems a week ago, it seems wobbly and off balance with its legs kind of going all directions when it tries to walk. My initial thought was an injury, until the following day 2 other chicks got sick and died suddenly. I had treated my whole flock for coccidiosis but a few days later another 8 week old chick died suddenly. Yesterday morning I found yet another 8 week old chick with walking/balance/leg problems similar to the first chick that I originally thought was injured. The vet doesn't know what it is, He doesnt deal with poultry often but gave me antibiotics to give them. They are eating and drinking fine and appear chirpy except for this leg/balance issue, no diarrhoea. I think it's some kind of virus or bacteria, has anyone any idea as to what this could be.. The chicks that died had gone off their food in the morning suddenly and died a few hours later, the two chicks with leg issues don't appear sick as they are eating a lot and drinking with no diarrhoea but it's distressing watching them trying to walk and fall all over the place. Any ideas what's happening here? They've been on their antibiotics 3 days with no improvement, in fact I think the second chicks leg issues have worsened.