Review article

Pandemic A(H1N1)2009 Influenza in the County of Split-Dalmatia in 2009/2010 and 2010/2011: Some Clinical and Epidemiological Characteristics

Nikola Bradarić ; Klinika za infektivne bolesti ''Dr. Fran Mihaljević''
Zorana Klišmanić ; Klinika za infektivne bolesti ''Dr. Fran Mihaljević''
Ivo Ivić ; Klinika za infektivne bolesti ''Dr. Fran Mihaljević''
Milka Brzović ; Nastavni zavod za javno zdravstvo Splitsko-dalmatinske županije

Abstract

The pandemic influenza virus appeared in Croatia in July 2009, and over these two years it has caused infection in over 100,000 people, of whom at least 86 (60 virologically proven) died. In the County of Split-Dalmatia it affected 15,958 people, causing at least 8 deaths (all virologically proven). The number of hospitalized patients at the University Hospital Center Split was 634, or 3.97% of the total reported number. The number of patients treated at the Intensive Care Unit was 27 (4.26% treated in hospital), of whom 8 died (29.63%). The 2009/2010 epidemic reached its peak in the period from October to December, and that of 2010/2011 in January and February. The 2009/2010 epidemic began in July, and the 2010/2011 epidemic in December. Virus A (H1N1) 2009 was detected using the RT PCR and/or DFA method in all positive nose and throat swabs taken during the 2009/2010 epidemic, while in the season 2010/2011 type B virus was detected in 5 swabs, and virus A (H1N1) 2009 in others. Most hospitalized patients in both seasons were 30 - 64 years old, but there was almost 10% more patients in the season 2009/2010 (39.85%) than in the season 2010/2011 (30.16%). A larger number of hospitalized children under 4 years of age (25.5%) was recorded in the season 2010/2011 than in the season 2009/2010 (18.04%), as well as that of patients older than 65 years (21.74 vs. 16.4%). The distribution of total influenza cases reported to epidemiological services was done only for 2010/2011, and most patients were also 30 - 64 years old (29.43%). The number of patients treated at the Clinic for Infectious Diseases of the University Hospital Center Split over these two seasons was 10 times higher than the ten-year average of influenza patients treated at this clinic. In this article we will present some clinical and epidemiological characteristics of patients suffering from influenza in the County of Split-Dalmatia in 2009/2010 and 2010/2011.

Keywords

pandemic influenza; epidemiology; clinical manifestation; risk factors; complications; therapy; prophylaxis

Hrčak ID:

77357

URI

https://hrcak.srce.hr/77357

Publication date:

3.1.2011.

Article data in other languages: croatian

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