Immunotherapy has changed cancer medicine. But it's no miracle cure | Ranjana Srivastava

Immunotherapy provides good reason for optimism and even awe. Unfortunately, it does not work in the majority of patients

She is grunting from the work of breathing. Perched at the edge of a chair, she hunches over her walking frame in order to find a comfortable position to speak the few sentences she can manage. Having watched her decline, I estimate she has weeks to live.

Slowly and painstakingly, she removes a paper buried in her bag. I can't help noticing that this task consumes so much of her energy that her son has to unfold the newspaper article.