Marek´s disease in Broiler Chickens

Yes the article written is good for long run brolier age above than 7 weeks of age and also with high body weights , for the younger age broiler like to sent to be sent to marketd at the age of not more than 40 days with an avg weight of about 1.8 to 2.3 i think here it has chances of its ocurance . Mean while the other points raised by the Nitin Suryavanshi sb and the Dr I; Fodor Must be consider .
A good cleaning and disinfection programe must be followed before put the new chicks with a previous history of MD ,with a good Vaccination combinations at the Hatchery level and duration of the vaccination timing at the Hatchey level with the other points lke Thying time and water temp using for the vaccince preparation are also very important points to be considered especially for the PS and Layer Flocks , as these flocks will never recoved from the problem and the ecnomical losses will be too much as compared to a Broiler flock.

Marek's disease in broilers is sometimes reported when birds are kept for 6 plus weeks of age. These markets also benefit from MD vaccination at day-old.

in my experience, in MD outbreak, once mortality starts, it keeps on increasing till sexual maturity. In the above outbreak, there is rise in mortality ONLY during 4th week followed by normal mortality during subsequent weeks. This mortality pattern more suggests Gumboro disease in which lymphoid tissue is also damaged. Was IBD ruled out in the above outbreak?