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dc.contributor.authorCollins, Sarah
dc.contributor.authorLitt, David J
dc.contributor.authorFlynn, Sally
dc.contributor.authorRamsay, Mary E
dc.contributor.authorSlack, Mary PE
dc.contributor.authorLadhani, Shamez N
dc.date.accessioned2018-05-08T03:34:14Z
dc.date.available2018-05-08T03:34:14Z
dc.date.issued2015
dc.identifier.issn1058-4838
dc.identifier.doi10.1093/cid/civ194
dc.identifier.urihttp://hdl.handle.net/10072/141907
dc.description.abstractBackground. Nontypeable Haemophilus influenzae (NTHi) frequently causes noninvasive upper respiratory tract infections in children but can cause invasive disease, mainly in older adults. An increased burden of invasive NTHi disease in the perinatal period has been reported by a number of studies. Here we describe the epidemiology, clinical characteristics, and outcome of neonatal invasive H. influenzae disease in England and Wales over a 5-year period. Methods. Public Health England conducts enhanced national surveillance of invasive H. influenzae disease in England and Wales. Detailed clinical information was obtained for all laboratory-confirmed cases in infants aged ≤31 days during 2009–2013. Results. Overall, 118 live-born neonates had laboratory-confirmed invasive H. influenzae disease: 115 (97%) were NTHi, 2 were serotype f, and 1 was serotype b. NTHi was isolated within 48 hours of birth (early-onset) in 110 of 115 (96%) cases, and 70 of 110 (64%) presented with septicemia. Only 17 mothers (15%) had suspected bacterial infection requiring antibiotics during labor. Few (8/110 [7%]) neonates had comorbidities. The incidence of early-onset NTHi increased exponentially with prematurity, from 0.9 per 100 000 (95% confidence interval [CI], .6–1.4) in term neonates to 342 per 100 000 (95% CI, 233.9–482.7) in neonates born at <28 weeks’ gestation (incidence rate ratio, 365 [95% CI, 205–659]; P < .001). Case fatality for early-onset NTHi was 19% (21/110); each additional gestational week reduced the odds of dying by 21% (odds ratio, 0.79 [95% CI, .69–.90]; P < .01). A quarter of neonates who survived experienced long-term complications. Conclusions. Early-onset neonatal NTHi disease is strongly associated with premature birth and causes significant morbidity and mortality.
dc.description.peerreviewedYes
dc.languageEnglish
dc.publisherOxford University Press
dc.relation.ispartofpagefrom1786
dc.relation.ispartofpageto1792
dc.relation.ispartofissue12
dc.relation.ispartofjournalClinical Infectious Diseases
dc.relation.ispartofvolume60
dc.subject.fieldofresearchClinical Sciences not elsewhere classified
dc.subject.fieldofresearchBiological Sciences
dc.subject.fieldofresearchMedical and Health Sciences
dc.subject.fieldofresearchcode110399
dc.subject.fieldofresearchcode06
dc.subject.fieldofresearchcode11
dc.titleNeonatal Invasive Haemophilus influenzae Disease in England and Wales: Epidemiology, Clinical Characteristics, and Outcome
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorSlack, Mary P.


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