[Changes in the drug resistance of Haemophilus influenzae and Streptococcus pneumoniae isolated between 1997 and 2006].

We studied changes in the drug resistance of 606 strains of Haemophilus influenzae (H. influenzae) and 502 strains of Streptococcus pneumoniae (S. pneumoniae) isolated from our patients between 1997 and 2006.