title: Systemic Haemophilus influenzae type b infection presenting as fever of unknown origin.
mesh_terms: D002648:Child; D005260:Female; D005335:Fever of Unknown Origin / Q000175:diagnosis* / Q000382:microbiology; D006192:Haemophilus Infections / Q000150:complications* / Q000382:microbiology; D006193:Haemophilus influenzae / Q000302:isolation & purification*; D006801:Humans; D008297:Male