Meningitis due to Haemophilus influenzae type f.
With the decline in the rate of infections caused by Haemophilus influenzae serotype b since the widespread vaccination, non-b serotypes should be considered as potential pathogenic agents in children with invasive disease younger than 5 years old. We report the case of an immunocompetent 1-year-old boy with Haemophilus influenzae type f meningitis. The agent was identified in cerebrospinal fluid and blood cultures. Serotyping was performed by tests using polyclonal sera and confirmed by polymerase chain reaction. All Haemophilus influenzae isolates associated with invasive disease should be serotyped and notified as a way to evaluate the changes and trends in serotype distribution of this disease.
Marta Pessoa
MP
Cardoso
Jacyr
J
Pasternak
Alfredo Elias
AE
Giglio
Rejane Rimazza Dalberto
RR
Casagrande
Eduardo Juan
EJ
Troster
D006193:Haemophilus influenzae / Q000145:classification* / Q000302:isolation & purification; D006801:Humans; D007223:Infant; D008297:Male; D008583:Meningitis, Haemophilus / Q000175:diagnosis / Q000382:microbiology*; D016133:Polymerase Chain Reaction; D012703:Serotyping