I now have 4 hens that have pale combs and are not walking. If I move them to water and food they will eat but otherwise have a hard time walking. They seem to have a foot that is paraylized and one has a wing. One is still walking but her comb is very pale. A couple have a swollen eye on one side of their head. I have lost two hens in the last month thinking they were pestered badly by the RIR rooster (lost two americaunas). Now I have 2 black Austrolope, 1 RIR, and 1 Americauana all with the same issue. I was browsing the internet and found Newcastle disease, does this sound possible. Is there anything I can do? I am isolating them today. I have raised these chicks since the end of July. They all did so well through our cold winter here in MO. I have had a hen in the past have the paralysis and recover. I thought she had just hurt herself, but now am thinking she had the same thing. I am separating the hens today and cleaning out the coop really well again. On a side note, I cleaned the coop two weeks ago after the winter, could I have disturbed some sleeping critter(bacteria) that is now affecting them all? I have 27 hens and 2 roosters. They are in a 12x16 coop, heated, windows, and free range or range in an enclosed pen during the day. I have never vaccinated. Not even sure what to use to vaccinate - any advise - can I vaccinate my flock now at 6 months of age (do have 2 hens that are older than 2 years that we got from a friend in our first fun with chickens). The farm store suggested antibiotics in their water. Using Duramycin-10. SHould I continue to use this? I am so attached to these sweet girls. I want to save my flock. I have so much time, energy, money, and love put into them.