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Summary, Patients will be able to get immunotherapy in the form of a vaccine called nivolumab in just 15 minutes, as opposed to an hour on an IV drip. England becomes the first country in Europe to offer it, with approximately 1,200 people receiving it each month for 15 different types of cancer, including skin, bladder, and oesophageal cancer. The medicine is a monoclonal antibody that attaches to a protein called PD-1 on a type of immune cell known as a T cell. It works by preventing cancer cells from deactivating T-cells, allowing the immune system to target and eliminate cancer cells.
It's not a vaccine, though, it's a treatment for people who already have cancer, not a prophylactic. And it's still delivered by IV.
There are therapeutic vaccines, like for rabies, which you only get after you have been exposed to the thing to be treated (in this case, cancer).
Preventative vaccinations are for sure the ones we are most familiar with, but they aren’t the only kind :)