Table 1.

Study Periods in Participating Countries

Country	Prevaccine Period	Date of PCV Effective Start of Vaccination	Product (Schedule)	Vaccine Coverage, % With at Least 3 Doses	Transition Period	Evaluation Period
Argentina	Jan 2005 to Jan 2012	Jan 2012	PCV13 (2 + 1)	85.3 as of 2013	Feb 2012 to Dec 2012	Jan 2013 to Dec 2019
Brazil	Jan 2005 to Feb 2010	Mar 2010	PCV10 (3 + 1) in Mar 2010 PCV13 (2 + 1) in Jan 2017	81.7 as of 2011	Apr 2010 to Mar 2011	Apr 2011 to Dec 2019
Chile	Jan 2005 to Jan 2011	Jan 2011	PCV10 (3 + 1) in Jan 2011 PCV13 (2 + 1) in Nov 2017	82.2 as of 2013	Feb 2011 to Jan 2012	Feb 2012 to Dec 2018
Colombia	Jan 2005 to Jan 2011	Jan 2011	PCV10 (2 + 1)	84 as of 2012	Feb 2011 to Jan 2012	Feb 2012 to Dec 2019
Mexico	Jan 1999 to Jan 2008	Jan 2008	PCV7 (2 + 1) in Jan 2008 PCV13 (2 + 1) in Feb 2011	92 as of 2009	Feb 2008 to Jan 2009	Feb 2009 to Dec 2019

Abbreviation: PCV, pneumococcal conjugate vaccine.