it is one of aneoplastic viral disease primarly affect chicken and rarely affect turkey and firstly detection of the virus occur at year of 1980 by ( dr jozef Marek) and the virus is belongs to Herpes virus of DNA viruses this viruses characheterized by the infiltration of neoplastic cells of cells forming lymphocyt in many organs as nerves trank and internal organs and most of the virus type are...
Dear Dr Abdelaziz,
Thank you for sharing your experiences.
I don't want to offend you or discourage you to share more experiences, but your English was quite difficult to read.
Probably it was a typing failure but in your remarks about 3 types of vaccination you mixed up serotype 2 and 3.
Regards