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I was under the impression that Marek's could be positively identified by PCR testing of suspect tissue, like that discussed in the heart and spleen of your pullet, so I was expecting to see some mention of that in the final report, but perhaps if they have a clear cause of death, then maybe...

Many thanks for that. I am a little surprised that they do not specifically confirm Marek's in the final report. I don't know if that is because it was not the primary cause of death or if they did not do PCR sampling. I am sorry that it appears to be the underlying cause though. I'm currently...

I'm not sure where you get your information but 8 months old is not unusual at all for Marek's but often it depends when the virus was introduced to the flock. Also, there is no way to know which birds are infected with the Marek's virus. Once they are exposed to it there is an initial dormant...