[Arthritis caused by type B Haemophilus influenzae. Description of 2 cases]

Haemophilus Influenzae type B is perhaps the most important pathogen in childhood. H.I. is the most common cause of bacterial septic arthritis in children under 2 years of age in the U.S.A. We describe two cases of H.I. septic arthritis and we discuss the the treatment. The antibiotic therapy is invasive H.I. type B disease is in a period of transition. New drugs are available that offer the same therapeutic efficacy as Ampicillin and Chloramphenicol but with decreased toxicity.