Impact of the pneumococcal conjugate vaccines on invasive pneumococcal disease in France, 2001–2012
2015
Abstract Context and aims Vaccination with the 7-valent pneumococcal conjugate vaccine (PCV7) was recommended in France in 2003 for children 15 years). Methods IPD rates were calculated using cases reported from 2001 to 2012 to Epibac, a laboratory network. The distribution of serotypes was assessed from invasive isolates serotyped at the National reference Centre for Pneumococci. IPD incidence rates were compared between the pre-PCV7 (2001–2002), late PCV7 (2008–2009) and post PCV13 (2012) periods. Results The PCVs coverage increased from 56% in the 2004 birth-cohort to 94% in the 2008 and following birth-cohorts. Following PCV7 introduction, IPD incidence decreased by 19% between 2001–2002 and 2008–2009 in children Conclusions Vaccination with PCV13 was rapidly followed by a decrease in the incidence of all-type IPD in children, in relation with a sharp decrease in the incidence of PCV13-Non PCV7-IPD. Moreover, all-type IPD decreased after PCV13 introduction in older non-vaccinated age-groups, with a shift in the distribution of serotypes. Considering the whole 2001–2012 period, the vaccination with PCV7 and PCV13 resulted in a decline in the incidence of IPD in children up to the age of 5 but not in older children and adults.
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