Is Marek’s catchable chicken cancer?

[Winter Creek Coop]

It is a herpes virus that causes t-cell lynphoma. So is it a highly contagious viral cancer?

Thoughts?

 

[nuthatched]

I don't believe it's a cancer, it affects neurological control.

 

[MysteryChicken]

Its highly contagious to other chickens, but not contagious to us humans.

 

[NatJ]

I don't believe it's a cancer, it affects neurological control.

But it certainly can cause tumors, since that is part of how it is diagnosed.
I'm not clear on whether "cancer" and "tumors" are different from each other

 

[nuthatched]

But it certainly can cause tumors, since that is part of how it is diagnosed.
I'm not clear on whether "cancer" and "tumors" are different from each other

True, but not all tumors are cancer and not all cancers manifest as tumors. I've never thought about before.
I don't know, we need wyorp or azygous, someone knowledgeable about disease.