This nasopharyngeal (NP) carriage surveillance study was requested by the European Agency for the Evaluation of Medicinal Products as a post-licensing commitment to determine whether the use of the pneumococcal conjugate vaccines (PCVs) including 7 then 13 valents (introduced in 2001 and 2010, respectively) caused a shift in the distribution of Streptococcus pneumoniae serotypes in children with acute otitis media and modified the resistance of this bacterial species to antibiotics.
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S. Pneumoniae colonisation
Timeframe: at inclusion
S. Pneumoniae colonisation involving to vaccine serotypes
Timeframe: at inclusion
S. Pneumoniae colonisation involving to non vaccine serotypes
Timeframe: at inclusion
Reduced of sensitivity to penicillin
Timeframe: at inclusion
Detect the emergence of new serotypes
Timeframe: at inclusion
Association of Pneumococcal Serotypes with Respiratory Viruses
Timeframe: at inclusion