Influenza in Poland in 2009

• Published in: Przegląd epidemiologiczny Vol. 65; no. 2; p. 199
• Main Authors: Czarkowski, Mirosław P, Romanowska, Magdalena, Staszewska, Ewa, Stefańska, Ilona, Donevski, Stefan, Brydak, Lidia B
• Format: Journal Article
• Language: Polish
• Published: Poland 2011
• Subjects: Adolescent; Adult; Aged; Alphainfluenzavirus - isolation & purification; Child; Child, Preschool; Disease Outbreaks - statistics & numerical data; Female; Humans; Incidence; Infant; Influenza A Virus, H1N1 Subtype - isolation & purification; Influenza A Virus, H3N2 Subtype - isolation & purification; Influenza Vaccines - administration & dosage; Influenza, Human - diagnosis; Influenza, Human - epidemiology; Influenza, Human - prevention & control; Influenza, Human - virology; Male; Mass Vaccination - statistics & numerical data; Middle Aged; Poland - epidemiology; Registries - statistics & numerical data; Rural Population - statistics & numerical data; Urban Population - statistics & numerical data; Young Adult; Poland
• ISSN: 0033-2100

A total number of 1,081,974 cases of influenza and influenza-like illness were registered in Poland in 2009 (incidence 2,835.9 per 100,000 population). It was nearly 5 times more than in 2008. The impact on increase of the number of reported cases have had two factors: the pandemic of influenza caused by virus A(H1N1)v, and increasing of the surveillance sensitivity. 3,177 (0.29%) cases was laboratory confirmed. In the area of particular regions incidence ranged from 805.2 in świetokrzyskie voivodeship to 5,257.9 in warmifisko-mazurskie voivodeship. Nearly 37% of cases were children under 15 years. The incidence in this age group was 6,851.2 (from 2,010.1 in Swietokrzyskie voivodeship, to 13,291.6 in warmińsko-mazurskie voivodeship). The highest reported incidence was observed in age group 5-14 years (7,135.2). To hospitals, mainly for epidemiological reasons, 8,944 people were sent (0.83% all cases). According to Central Statistical Office data, there were 87 death cases, including 8 (9.2%) children in the age of 15. 70.1% of deaths were registered as cases caused by identified influenza virus.