National Center for Biotechnology Information NCBI NLM MEDLINE review humans pubmed abstract nih national institutes of health national library of medicine polymerase chain reaction bacterial infections / microbiology pneumonia streptococcus pneumoniae / genetics nucleic acid amplification techniques bacterial infections / diagnosis virus diseases / diagnosis streptococcus pneumoniae / isolation & purification respiratory tract infections / microbiology* virus diseases / virology pmid:15638835 doi:10.1111/j.1600-0463.2004.apm11211-1202.x david r murdoch bordetella pertussis / genetics bordetella pertussis / isolation & purification chlamydia / genetics chlamydia / isolation & purification haemophilus influenzae / genetics haemophilus influenzae / isolation & purification legionella / genetics legionella / isolation & purification molecular biology / methods* mycobacterium / genetics mycobacterium / isolation & purification mycoplasma pneumoniae / genetics mycoplasma pneumoniae / isolation & purification pneumocystis carinii / genetics pneumocystis carinii / isolation & purification pneumocystis / diagnosis pneumocystis / microbiology respiratory tract infections / diagnosis* sars virus / genetics sars virus / isolation & purification