first sick chick died- please help!

[ccusker]

Hello. I have a 3 month old silkie chick that has been acting funny - not staying with flock..sitting still in grass "sleeping" in the middle of the day - doesn't notice you right up behind it. Has been moving around/eating/drinking fine - until last night. This chick and it's siblings are quite skittish, but last night we were able to scoop it right up. Noticed a little drool, but it had also just finished a snack. At bedtime, it was not in the coop with the others, but rather puffed up in the grass nearby. I brought it in the house and it's been ok, but not chirping anymore - just sitting there looking at me! Does this sound like something treatable? (Cocci?) Will the rest of my flock start getting sick? We have 16 chickens and 3 ducks - do I need to medicate everyone? ANY advice would be GREATLY appreciated!!!!

UPDATE: chick died. Do I medicate the rest of the flock to prevent this from happening again? What med should I use???

 

[MommaOrp]

I'm not sure what this could be, were his stools bloody? or any nasal discharge, sneezing etc? are any others showing any symptoms? Maybe the others will be able to help you better

 

[Judy]

Puffed up and not moving much and dying quickly all sound like cocci -- typically the poop will look sort of hamburgery, then later, bloody. If you think this is what it is, I'd start Corid, today.

https://www.backyardchickens.com/forum/viewtopic.php?id=368508

https://www.backyardchickens.com/forum/viewtopic.php?pid=5996656#p5996656

 

[ccusker]

The stools looked fine, no sneezing that I could see...I went to TSC to get meds...the only thing they had was dexamyacin? Does this sound right? I don't have any other stores nearby to get Corid. No other chicks/adults showing symptoms at this point.