The drugmaker said it would spend up to $4 billion to acquire small companies exploring vaccines for shingles, Epstein-Barr virus and other pathogens.
Eli Lilly said on Tuesday that it would buy three vaccine developers in deals collectively worth up to $4 billion, a move that signals a return to an area that had not been a major focus for the company in recent years.
The three are Curevo, a Seattl... [1515 chars]