Promising New Cancer Immunotherapies Have Arrived—But Not For Everyone

In 1891, a New York doctor named William B. Coley injected a mixture of beef broth and Streptococcus bacteria into the arm of a 40-year-old Italian man with an inoperable neck tumor. The patient got terribly sick—developing a fever, chills, and vomiting. But a month later, his cancer had shrunk drastically. Coley would go on …