chicken virus?

[eggy egg]

Hello
I have a cotswold legbar chicken that I believe is suffering from an illness.
She is still laying eggs as usual but she seems too look tired and exhausted.The chicken is losing balance and is kind of changing the colour of her feathers.
I am just wondering what this virus is and if there is a cure for it? I think we bought the six chickens from a dodgy place as three of them have died from the same thing as above.
Hope you can help!

 

[EggieRowe]

I just got off the phone with the local university's livestock/poultry health lab. The doctor I talked to was super helpful and informative. I'm dealing with what appears to be coccidiosis infection that's killed two and really sickened a third in the last 18 hours. Give yours a call and describe what you're seeing. They probably can give you some advice and ideas for treatment.