Key to drug profits : Merck has turned its wonder drug for cancer – Keytruda into a blockbuster – and priced out patients worldwide, shows report

Blitz Bureau NEW DELHI: Pharmaceutical companies across the world spend billions of dollars in research every year trying to fathom the mysteries behind different types of malaise. Five years back when humanity was on the brink of unprecedented threat from a new virus, it was these pharma companies which created a vaccine to fight the…