Merck & Co., Inc. is looking to bring a new vaccine to market for the prevention of pneumococcal disease in adults, but the company will have to compete against Pfizer Inc., which has long been a rival in the market with its blockbuster Prevnar franchise. The company hopes the new vaccine could offer the broadest protection for adults.
Merck is not new to competing against Pfizer in the pneumococcal space. The two are already facing off with Merck’s...






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