Journal of paediatrics and child health · 2011
Bacterial meningitis among children under the age of 2 years in a high human immunodeficiency virus prevalence area after Haemophilus influenzae type b vaccine introduction.
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Nansera Denis, Max Irama, Annet Kisakye, Gessner Bradford D
Аннотация
AIM: The aim of this study was to describe bacterial causes of meningitis among children < 2 years in a high human immunodeficiency virus (HIV) prevalence area after introduction of routine Haemophilus influenzae type b vaccination.
METHODS: Data collected between April 2003 and December 2008 were extracted from a surveillance database and medical records of children < 2 years admitted in Mbarara Hospital, Uganda with suspected bacterial meningitis. HIV infection was confirmed using rapid tests and polymerase chain reaction and bacterial meningitis by using cerebrospinal fluid culture.
RESULTS: Between April 2003 and December 2008, 1464 children under 5 years were admitted with suspected bacterial meningitis of which 1235 (84.4%) had cerebrospinal fluid collected; 894 (72.4%) of these samples were from children < 2 years. Of the 894 samples, 64 (7.2%) grew an organism including Streptococcus pneumoniae (26; 41%), Salmonella species (20; 31%), H. influenzae (6; 9%) and coliforms (7; 11%), and five (8%) grew contaminants that are all coagulase negative Staphylococcus. Of the 894 children, 468 (52.3%) were tested for HIV; 16.7% were positive. Fifty-one children had a pathogenic isolate and a treatment outcome, and 23 (45%) died; 13 (56.6%) deaths were due to S. pneumoniae, eight (34.8%) were due to Salmonella spp., one (4.3%) was due to H. influenzae and one (4.3%) was due to coliforms. HIV infection was associated with a threefold increase in mortality, increased likelihood of a bacterial isolate and decreased likelihood of malaria parasitaemia.
CONCLUSION: Following H. influenzae type b vaccine introduction, S. pneumoniae and Salmonella spp. are the major causes of bacterial meningitis among children < 2 years in Uganda. Pneumococcal conjugate vaccines and reduction in mother to child transmission of HIV could reduce the observed mortality.
METHODS: Data collected between April 2003 and December 2008 were extracted from a surveillance database and medical records of children < 2 years admitted in Mbarara Hospital, Uganda with suspected bacterial meningitis. HIV infection was confirmed using rapid tests and polymerase chain reaction and bacterial meningitis by using cerebrospinal fluid culture.
RESULTS: Between April 2003 and December 2008, 1464 children under 5 years were admitted with suspected bacterial meningitis of which 1235 (84.4%) had cerebrospinal fluid collected; 894 (72.4%) of these samples were from children < 2 years. Of the 894 samples, 64 (7.2%) grew an organism including Streptococcus pneumoniae (26; 41%), Salmonella species (20; 31%), H. influenzae (6; 9%) and coliforms (7; 11%), and five (8%) grew contaminants that are all coagulase negative Staphylococcus. Of the 894 children, 468 (52.3%) were tested for HIV; 16.7% were positive. Fifty-one children had a pathogenic isolate and a treatment outcome, and 23 (45%) died; 13 (56.6%) deaths were due to S. pneumoniae, eight (34.8%) were due to Salmonella spp., one (4.3%) was due to H. influenzae and one (4.3%) was due to coliforms. HIV infection was associated with a threefold increase in mortality, increased likelihood of a bacterial isolate and decreased likelihood of malaria parasitaemia.
CONCLUSION: Following H. influenzae type b vaccine introduction, S. pneumoniae and Salmonella spp. are the major causes of bacterial meningitis among children < 2 years in Uganda. Pneumococcal conjugate vaccines and reduction in mother to child transmission of HIV could reduce the observed mortality.