Vaccines for meat chickens

Our local hatchery where we usually get our meat chickens vaccinates for Mareks, Salmonella and IBD.  Has anyone heard of any health problems for humans regarding eating birds that are vaccinated?  I realize that we are exposed to vaccines from just about every type of meat we eat, but it seems that immune mediated diseases are on the rise and I wonder if this could be one piece of the puzzle in the decline of human health.

Good question!  I think that the vaccine debate is a little bit hot though.  I would personally say yes; epigenetics and the active change and mutation of our living DNA.  Vaccines, like anything you take into or expose the body to, can actively influence your DNA.  So intaking foods that have vaccine-influence may, over time, begin to influence your DNA as well.  Just my own opinion here.  I'd avoid it like the plague.  But there's gonna be lots of people who insist it's totally fine and won't affect you to any degree, except to help keep your birds healthier and meat 'cleaner'.

Salmonella shouldn't be a problem unless you've got filthy, stressful living conditions or tainted water or feed, IMO.  

Marek's can be a big problem if it shows up.  But it's passed horizontally; from bird to bird, and it can linger in the environment even if infected birds are destroyed.  If Marek's isn't present on your property, if the chicks you bring in do not have Marek's, and if you're not bringing in new birds from other farm, you're not going to get Marek's.  

IBD is a new one to me.  I just looked that up.  Looks like another horizontal transmission immune disease.  I don't know much about it though.  

Everyone's got a different opinion on this.  My opinion is get a clean flock and close it.  No new birds.  Hatch your own eggs, hatch eggs you buy from others, and keep your birds isolated and clean

Yes, vaccination is a hot topic, fraught with lots of misinformation. I've never met an anti-vaxxer who had taken the time to really research the biology behind vaccines and what vaccination does. Sadly, they simply parrot what they've read on the Internet or worse, come up with their own ideas which they cling to as fact. I've long since given up arguing with them. I simply made a hard fast rule for our veterinary patients......all cats and dogs had to be vaccinated with base vaccinations. Period. As a result our veterinary hospital NEVER saw a cause of canine or feline distemper, never had our fully vaccinated patients come down with rabies, parvovirus, lyme, etc. Yes, we saw sick puppies & kittens and new patients, but our correctly vaccinated patients were protected.

Vaccines introduce a modified component into the body that causes the body's immune system to react and produce antibodies to the disease in question. It is the reaction that the body does when it survives a naturally occurring attack. The body often maintains those antibiotics for a long time, giving long term or lifelong immunity to that disease. Lactating mothers past those antibiotics to their offspring via their milk. I see nothing sinister about this,