Unknown sickness? Looking for some advice!

diamondsilkies

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In the past couple months I've had three of my seramas get sick or die, which is unusual for them. I had one (Lola) who had something really bad that temporarily made her loose her balance and paralyzed her legs for a couple weeks. She was the first one to get sick, but is now back with the flock. It took several weeks for her to get better, and some physical therapy to get her walking again. She is now completely fine except for the occasional stumble. She also can't fly very high anymore, and has taken a break from laying. Other than that, it's like nothing ever happened. It struck her very suddenly, the only warning being that she kept to herself starting about a week before, but I didn't think much of it since she has always been lower on the serama pecking order.

The second one to get sick was one of my roosters (Sammy). He has always been the least dominant rooster, and about three weeks ago I noticed he was keeping to himself. His tail drooped, and his face became pale. He still eats and drinks, and his feathers look healthy, as do his eyes. He keeps to himself during the day, or hangs around with Lola. They sleep together on a low perch that's easy to get to without much flying. He still has not recovered, which I found strange because chickens usually get better or die really quickly. But his symptoms have remained the same and have not worsened or gotten better.

Finally, I went out of town this past week, just for a few days. Before I left, my one hen, Athena, looked like the absolute picture of health. Her feathers were healthy, she was hanging out with her rooster and two friends, no sneezing or pale face, no droopy wings or tail, nothing. Actually, before I left I let them out to free range and was thinking how healthy she looked. My neighbors were taking care of my chickens while I was gone, and when I got back I went to check on them. I couldn't find her anywhere, and when I asked my neighbors, they said that she had died. They put her in a cage behind the coop since they knew I was coming back soon and might want to examine her. There was no sign of injury or anything. She was less than a year old, so it couldn't have been old age.

The common symptoms seem to be keeping to themselves, inability to fly very high, taking a long time to recover, and that the sickness strikes very quickly.

What could this be? Maybe Athena had something different, since what happened to her seems to vary a bit? I know seramas can die of stress, so maybe that's what happened to her? But what about the other two? My remaining seramas all seem very healthy and happy, but I'm worried they might get sick too. Is there anything I should do for Sammy, since he's still sick? I've been letting him stay because he doesn't really come in contact with the rest of the flock, and it stresses him out to leave. He's also eating and drinking fine. Has anyone had a similar experience? It's only happening to my seramas, even though they live with three silkies and a polish.
 
Sorry, I didn't get these alerts for some reason.
Just a quick update: the rooster passed away yesterday. He had worsened in the past couple days, and I began bringing him in at night time, since we got down to freezing. He seemed to perk up quite a lot once he got inside, so maybe it's the cold that affected him? I don't know, but eventually whatever it was got to be too much for him. :(

One of my other serama hens seemed a little down a couple days ago, but she seems fine now, so it might have been the sudden decrease in temperate that affected her.

Their eyes seem bright and clear. I have heard that Marek's was going around recently. Hopefully it's not that, but you may be right. I heard that Marek's was fatal? It might have just been some misinformation, though.
 
It sounds like Marek's to me and it is not always fatal, but once your flock has it, it will keep rearing it's ugly head from time to time at moments of stress... which can be hormonal.... point of lay/moulting, moving home, bullying, climate change, being confined due to bad weather etc.
Seramas and silkies are particularly prone to it, so I am surprised you have not seen any casualties in your silkies. Are they older than the seramas? It tends to be adolescent birds that are most vulnerable to it. Your girl that recovered will probably suffer a second and usually more prolonged/severe attack at some point in the future. I've had birds go over a year between first and second attacks. Some die from the first attack. Some completely recover as quickly as they got sick and others take months to make a partial recovery. There are no hard and fast rules with this disease. Many do not show the ocular symptoms. Some die suddenly of visceral tumours without displaying any of the neurological symptoms, so that might be what happened to Athena. Tumours on the heart and lungs are quite common and those on the heart can cause quite sudden death. Without opening her up and checking her organs or sending her off for a professional necropsy, we can only guess, but she certainly could have been a victim of Marek's too.
 
Ok. I'm thinking of quarantining all my sick seramas, even the ones that have just a few symptoms. I'll do a really thorough clean out of the coop, too. Hopefully that will help prevent the others from getting it. I was also surprised my silkies haven't been affected at all. I've been keeping a close eye on them, but they all seem really healthy. One of them is going through a really hard molt, but she seems fine.

Most of my silkies are older, but I have a few ones that are about the same age as my seramas, and they're fine. I guess we'll see what happens from here.
 
I would be inclined to vacuum out the coop to remove all the dander dust once you have removed all the bedding/litter and be careful about how/where you dispose of the stuff you remove. Virkon S is one of the few products that is believed to be successful in killing the Marek's virus, so it might be worth disinfecting with that once you get it all cleaned out.
 

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