Invasive infections due to Haemophilus influenzae type b resistant to ampicillin and chloramphenicol.
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D000668:Ampicillin Resistance; D002675:Child, Preschool; D002702:Chloramphenicol Resistance; D005260:Female; D006192:Haemophilus Infections / Q000188:drug therapy* / Q000382:microbiology; D006801:Humans; D007223:Infant