4 sets of new chicks from different breeders

[Vickir73]

I need to keep everyone in quarantine for 30 days; however, I just thought about this issue. Since I'm getting chicks in from 4 different breeders I need to keep all 4 sets separated correct? My brooder is bigger than 10X10 (my boss' office is 10X10 and my brooder area is bigger than that so I'm guessing). Can I keep each set in separate corners and be ok or do I need to keep them each in different rooms? Of course I only thought about this this morning (and I'm getting the 1st set today, 2nd set tomorrow, 3rd set Tuesday, and the 4th at the end of the month), so yeah, sometimes I'm kinda slow

Also, if my current flock (about 9 mos old) were all vaccinated for Mareks from the hatchery, do I need to vaccinate all these new chicks (even though they will be 1-5 wks old)?

 

[Serama Newbee]

I would vaccinate them. Not every time a chicken / chick gets Mereks is from the surrounding flock. It can be spread even by the wind! I personally have lost 7out of 7 to Mereks, and they weren't even near the coup. If in doubt, vaccinate. If, though, they have made it past around 2-3 months, depending on the breed, they shouldn't get it; by then they shouldn't get it.