No, they don't have Marek's..or any other disease. I live at the base of a mountain with lots of other birds and wildlife..Preventative measures work the best and it keeps them REALLY healthy and thriving!
The vitamins are called Vi-tol and I get them from Agway for less than 3.00, they last a very long time..The colloidal silver I also get cheap in the liquid form, it's called silver shield. Both of these given with a teaspoon of Braggs ACV has a great impact on Marek's!
Have any of you tried a mixture of Braggs ACV, poultry vitamens and colliodal silver? I have been using it for 4 months with great success. Over the 4 months I have aquired 20 additional hens from two separate owners and all is well. They are all fattening up and getting ready for winter!