In this series of case studies spanning 2012 to 2017, MSF Access Campaign analysed the barriers to access to lifesaving vaccines in five countries in which MSF has worked: South Sudan, South Africa, the Philippines, Niger, and Greece. These case studies examined issues faced by MSF medical teams in accessing pneumococcal conjugate vaccine (PCV) for childhood pneumonia and related diseases; and human papillomavirus (HPV) vaccine for cervical cancer prevention.