Early trends in invasive pneumococcal disease in children following the introduction of 13-valent pneumococcal conjugate vaccine: results from eight years of active surveillance in a Mexican hospital.

Background: In May 2012, universal vaccination with the 13-valent pneumococcal conjugate vaccine (PCV-13) was introduced for all children in the Tijuana region of Mexico, with a coverage of 80%.

Method: Between October 2005 and September 2013 active surveillance was undertaken for all invasive pneumococcal diseases (IPDs) in children admitted to the Tijuana General Hospital.

Results: Following PCV-13 implementation, there was a 75% reduction in overall IPD, and no cases of serotype 19A, pneumococcal meningitis, and pneumococcal-associated deaths.

Conclusions: These results are the first to show the effectiveness of PCV-13 in Mexico.