Streptococcus pneumoniae
The most common bacteria isolated are "Haemophilus influenzae", group A beta-hemolytic "Streptococcus", "Staphylococcus aureus", "Moraxella catarrhalis", and "Streptococcus pneumoniae". "Haemophilus influenzae", "Moraxella catarrhalis" and "Streptococcus pneumoniae" are the three most resistant pathogens of otitis and rhinosinisitis in children suffering from these diseases.