Yeah I have tried the human anti-herpes med Valtrex on my birds. Likewise when started immediately at the first hint of symptoms it seems to shut down the Mareks virus and either reverse mild symptoms or prevent new ones. Once the bird is very ill (tumors or paralysis) then it doesn't seem to...
A lot of people have Marek's in the flock. Some folks vaccinate new chicks before introducing them. Not sure what the ag department would do about the complaint, many NPIP breeders also have Mareks (it is not tested for). Qurantining usually doesn't help at all since Mareks may not show up for...