- Jun 2, 2013
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Is mareks disease contagious to other chickens!? Also, how can you tell if a chicken has mareks disease!? Thanks!..
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Yes, it is extremely contagious. There is a detailed thread about it called "Rooster with mass in neck, possible tumor, thymus response - Mareks." in the "emergencies, diseases,![]()
injuries, cures" forum.
Birds that don't die from it, will be carriers and shed the disease for life. You can also just put"Mareks " in the search bar and will probably have a lot of hits.