The therapeutic strategy is consolidated as an option to treat tumours, but it only reaches 25% of these. As a strategy to fight cancer, immunotherapy is the perfect plan for oncologists: to stimulate the body’s defences to identify tumour cells and attack them. Less aggressive than chemotherapy, more directed at the tumour focus and with a potential memory effect, these treatments have improved survival in tumours with an inferior prognosis and have become one of the great revolutions of the decade in the fight against cancer. So much so that its evolution has overwhelmed the scientific community, which can barely…