Journal
EMERGING INFECTIOUS DISEASES
Volume 23, Issue 3, Pages 396-404Publisher
CENTERS DISEASE CONTROL & PREVENTION
DOI: 10.3201/eid2303.161552
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We describe the epidemiology of invasive Haemophilus influenzae disease during 2007-2014 in 12 European countries and assess overall H. influenzae disease trends by serotype and patient age. Mean annual notification rate was 0.6 cases/100,000 population, with an increasing annual trend of 3.3% (95% Cl 2.3% to 4.3%). The notification rate was highest-for patients <1 month of age (23.4 cases/100,000 population). Nontypeable H. influenzae (NTHi) caused 78% of all cases and showed increasing trends among persons <1 month and 2:20 years of age. Serotype f cases showed an increasing trend among persons 260 years of age. Serotype b cases showed decreasing trends among persons 1-5 months, 1-4 years, and 2:40 years of age. Sustained success of routine H. influenzae serotype b vaccination is evident. Surveillance systems must adopt a broad focus for invasive H. influenzae disease. Increasing reports of NTHi, particularly among neonates, highlight the potential benefit of a vaccine against NTHi.
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