Invasive Haemophilus influenzae Serotype e and f Disease, England and Wales
Shamez N. Ladhani , Sarah Collins, Anna Vickers, David J. Litt, Carina Crawford, Mary E. Ramsay, and Mary P.E. Slack
Author affiliations: Health Protection Agency, London, UK (S.N. Ladhani, S. Collins, A. Vickers, D.J. Litt, C. Crawford, M.E. Ramsay, M.P.E. Slack); St. George’s University of London, London (S.N. Ladhani)
Figure 1. . . Epidemiology of invasive encapsulated Haemophilus influenzae disease, England and Wales, 2000–2009. Serotypes Hib, Hie, and Hif predominated, with Hib incidence dropping rapidly after re-introduction of a whole-cell pertussis–containing Hib vaccine in 2002, a Hib booster campaign for toddlers in 2003, and a routine 12-month Hib booster in 2006. During the period shown, only 6 cases of Hia and 2 each of Hic and Hid were reported. Error bars indicate 95% CIs.
The opinions expressed by authors contributing to this journal do not necessarily reflect the opinions of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.