Mareks Vaccines are a risk.I'm hoping for a good flock roo, but thinking I might get a trio so we can get some pure bred chicks. Also discovered that Meyers Hatchery sells Marecks vaccines.
They do nothing to stop the bird from getting the disease or spreading it. All they do is hide the symptoms.
Marek's vaccinated (or otherwise vaccinated) birds cannot be shown at APA/ABA sanctioned shows. And in most countries vaccinated birds cannot be imported.
That shows, imo, that the vaccines do more harm than good.