On 20-21 March 2012, PAHO immunization project conducted a workshop in Buenos Aires, Argentina to identify lessons learned from the introduction of the pneumococcal conjugate vaccine (PCV) in Latin America and the Caribbean (LAC). Some of the meeting objectives were to share experiences between countries with different scenarios and vaccination schedules as well as to identify the strengths, opportunities and problems that arose in the logistic and operational process of the PCV introduction. The workshop also discussed the critical aspects of the PCV introduction in order to support the introduction process in other countries of the Region and other WHO Regions.