Avid Bioservices Inc (CDMO)

[2ndstr2thert]

Thanks K.T. and Slipperypete for responding. I guess I did not form the question properly and/or maybe I did not understand your responses . Let me rephrase.
Exposed P.S. on the inside of tumor vasculature prevents the immune system from recognizing these vessels as a "perversion."
Once Bavi covers the P.S. the cancer vasculature is now exposed as something that should not be there and an antibody attack will now be mounted. My question deals with the tumor itself ---not the vasculature. If P.S. is masking the tumors blood vessels as a bodily threat then what is hiding the tumor itself from being identified as an antibody target ?
T.I.A.