>>16820899 (OP)
its not a vaccine if its used when the disease already developed? Nowhere did it say its a vaccine. More like a treatment given parenterally
>>16820971
cancer treatments are called cancer vaccines if they have the ability to stop the cancer from reappearing. so a regular treatment might cure you a tumor, bit then the cells spread and another tumor appears, so you need to start treatment from 0 again. cancer vaccines avoid this by making you resistant to that type of tumor forever