National Center for Biotechnology Information NCBI NLM MEDLINE humans pubmed abstract nih national institutes of health national library of medicine research support non-u.s. gov't adult adolescent aged middle aged Child Infant preschool Incidence sensitivity and specificity Polymerase Chain Reaction / methods meningitis meningococcal / prevention & control quality control population surveillance* pneumococcal / prevention & control pneumococcal / diagnosis bacterial / epidemiology* pneumococcal / epidemiology haemophilus / diagnosis meningococcal / diagnosis bacterial / prevention & control haemophilus / epidemiology meningococcal / epidemiology bacterial / mortality neisseria meningitidis / isolation & purification haemophilus influenzae type b / isolation & purification pmid:15614687 doi:10.1086/426436 isabelle parent du châtelet yves traore muhammed k taha burkina faso / epidemiology haemophilus / prevention & control