What is antigen escape?

Can a person with a compromised immune system develop a response to a cancer vaccine?
When is the best time to potentially use a myeloma vaccine?
What are the different kinds of myeloma vaccines being explored?
What is the difference between a vaccine that is personalized and a shared (off the shelf or allogeneic) vaccine?
What are cancer vaccines and how do they work? What side effects are being seen with myeloma vaccines? Have any cancer vaccines been FDA approved?
How are vaccines made? What are vaccine adjuvants (immune stimulators)?
How is frailty defined? What does it mean to be fit, intermediate-fit, frail?
BETA - What is the difference between seeing a specialist versus a general oncologist?