Pharma investors tired of a patent cliff can turn toward vaccine focused businesses. And we recently saw two new breakthrough meningitis vaccines from Pfizer (NYSE:PFE) and Novartis (NYSE:NVS) file for FDA approval.

What is exciting about these new products is their ability to vaccinate for meningitis B. Pfizer is hoping to add an incremental $500 million in sales, but Novartis may not realize any of its success. GlaxoSmithKline (NYSE:GSK) recently bulked up its vaccine business with a $7.1 billion deal with Novartis that included its meningitis portfolio.

In this episode of Market Check-Up, the Motley Fool's health care focused investing show, analysts David Williamson and Michael Douglass, discuss the trial data, why vaccines are increasingly attractive to big pharma and which one has the biggest potential.