Possibly losing hens to Marek’s

[Bry310]

Hello,

Small flock keeper (15 hens) of 2 years in Northern CA.

The other day we lost a hen to what we believe is Marek’s disease. The only symptoms she showed was green droppings and a purple floppy comb. Within the day, she became lethargic and the following evening she passed.We don’t know the cause for sure and were surprised as our entire flock seems very healthy and active and we haven’t had any issues previously.

we’re aware it could be something else that killed her, however, this morning we noticed a different hen has a gray milky eye. When we saw this, our first concern became Marek’s as it looks exactly like it. I attached a photo for reference.

I have confirmed with our breeder that the chickens are vaccinated at birth, so this has us even more confused. But I fear we are going to lose most, if not all, of our flock over the next few months as they are all exposed. Is there anything we can do now to save the remaining flock?

Moving forward, what can/should we do to prepare our coop and run for future flocks? Even if they’re vaccinated, do we still run the risk of future infections? I’m not sure how to move forward.

 

[nuthatched]

Here's your other thread.
https://www.backyardchickens.com/threads/possibly-losing-hens-to-marek’s.1633137/