Enhanced surveillance of initial cases of pandemic H1N1 2009 influenza in Ireland, April - July 2009

J Martin; J O’Donnell; D Igoe; A O’Hora; L Thornton; N Murphy; G Cullen; M Fitzgerald; S Cotter; P McKeown; D O’Flanagan; Collective in conjunction with the National Public Health Outbreak Response Team

doi:10.2807/ese.14.38.19337-en

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Enhanced surveillance of initial cases of pandemic H1N1 2009 influenza in Ireland, April - July 2009
J Martin¹ , J O’Donnell¹ , D Igoe¹ , A O’Hora¹ , L Thornton¹ , N Murphy¹ , G Cullen¹ , M Fitzgerald¹ , S Cotter¹ , P McKeown¹ , D O’Flanagan¹ , Collective in conjunction with the National Public Health Outbreak Response Team¹
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Affiliations: ¹ Health Protection Surveillance Centre, Dublin, Ireland

Correspondence:
J Martin
Jennifer.martin hse.ie
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Citation style for this article: Martin J, O’Donnell J, Igoe D, O’Hora A, Thornton L, Murphy N, Cullen G, Fitzgerald M, Cotter S, McKeown P, O’Flanagan D, in conjunction with the National Public Health Outbreak Response Team Collective. Enhanced surveillance of initial cases of pandemic H1N1 2009 influenza in Ireland, April - July 2009. Euro Surveill. 2009;14(38):pii=19337. https://doi.org/10.2807/ese.14.38.19337-en Received: 17 Sept 2009

Abstract

From 28 April to 18 July 2009 there were 156 cases of pandemic H1N1 2009 influenza confirmed in Ireland. During this time, Ireland was in containment phase, and detailed case-based epidemiological information was gathered on all cases presenting in the community and acute health care setting. Active case finding was performed among contacts of cases. Eighty percent of cases were in people under the age of 35 years, and 86% were imported. The most frequent symptoms were fever, sore throat, myalgia and dry cough. Nine people were hospitalised, no fatalities occurred.