Mareks vaccine

[MaineChickenRun]

Will a chick that is vaccinated for Marek's from the hatchery be a carrier and infect other birds with Marek's.? I am getting a lot of different answers. Some qualified. Some think they know. Any input or leads to info would help. Thanks!

 

[countrygoddess]

I was told by an expert that they could shed it, but won't absolutely shed it.

 

[MaineChickenRun]

Thank you for your response. I have read on another thread here that the UNM study showed they will not shed enough if the virus to infect other chickens. Am looking more now.