Original scientific paper

Pandemic influenza A (H1N1) 2009. in Split-Dalmatia County in seasons 2009/2010 and 2010/2011

Zorana Klišmanić ; Nastavni zavod za javno zdravstvo Splitsko-dalmatinske županije
Milka Brzović ; Nastavni zavod Splitsko-dalmatinske županije
Katija Barač Juretić ; Nastavni zavod Splitsko-dalmatinske županije
Anamarija Jurčev Savičević ; Nastavni zavod Splitsko-dalmatinske županije

Abstract

Influenza is a well-known viral infectious disease that occurs almost every year epidemically, becoming occasionally pandemic. The aim of this study is to provide an overview of the epidemiological
characteristics and activities related to the appearance of pandemic Influenza A(H1N1)2009 during the 2009/2010 and 2010/2011 seasons in the Split-Dalmatia County (SDC), Croatia. We retrospectively analysed the weekly influenza related illness/death mandatory reports, which were collected in the Department of Epidemiology of the Teaching Institute of Public Health, Split-Dalmatia County during the influenza season 2009/2010 and 2010/2011. In the Split-Dalmatia County (SDC), the first influenza case caused by an infection with the pandemic influenza A virus (H1N1)2009 was reported on 3 July, 2009.
From then till the end of March 2010, during the pandemic period, 5676 patients suffering from influenza were reported (incidence rate 122.4/10,000). Three patients deceased (case fatality rate 0.05%). Pandemic influenza A virus (H1N1)2009 continued to circulate as a seasonal virus among the population during
autumn and winter 2010/2011 with a recurrence of influenza morbidity. In the December 2010 – April 2011 period there were 7,468 patients reported (incidence rate 161.1/10,000) with five deceased (case fatality rate 0.07%). The pandemic influenza A(H1N1) 2009 virus was confirmed in all deceased patients. The
hospitalisation rate during the 2009/2010 season was 5.7 to 10,000, while during the 2010/2011 season it was 7.9 per 10,000 inhabitans.

Keywords

influenza A virus (H1N1)2009; epidemiology; Split-Dalmatia County; Croatia

Hrčak ID:

113345

URI

https://hrcak.srce.hr/113345

Publication date:

13.1.2014.

Article data in other languages: croatian

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