Haemopilus influenza-Haemophilus B conjugate vaccine
Streptococous pneumoniae - Pneumococcal vaccine
Neisseria meningitidis - meningcococcal vaccine
Children undergone splenectomy ir those with impaired splenic function (e.g., sickle cell anemia), should take daily penicillin for a least 3 to 5 years or untill adulthood