Gloom was the predominant mood on the sunny day this autumn when Medecins Sans Frontieres (MSF) explained to Delhi journalists how it lost a long legal battle with Pfizer over the pneumococcal conjugate vaccine, or PCV. The US pharma major had been granted a patent for Prevnar 13, said Leena Menghaney, South Asia head of MSF’s Access Campaign. That meant a 68 per cent rise in the cost of the vaccine available to developing countries.