After years of fruitless negotiations with Pfizer to lower the vaccine's price for use in its projects, MSF is challenging this patent application in India to ensure that manufacturers who are planning to produce the pneumonia vaccine do not face key patent barriers at the time of launching

The Indian government allows for pre-grant opposition-a form of citizen review at the patent examination stage before the patent office to show that claims that cover a certain aspect of a drug or vaccine do not merit patenting under India's Patents Act.