Colombia introduced mass pneumococcal conjugate vaccination at the end of 2011. Using 2005-2015 surveillance data, we conducted a retrospective interrupted time-series analysis. A significant trend towards reduced monthly was observed in the post-vaccination period (2012-2015) compared with the expected rate, reaching in 2015 a reduction of 90.5% of pneumococcal meningitis. This trend was not observed for control diseases.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5989909PMC
http://dx.doi.org/10.1080/21645515.2018.1425115DOI Listing

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