| [influenza in poland in 2007]. | a total number of 374,042 cases of influenza and influenza-like illness were registered in poland in 2007 (incidence 981.3 per 100,000 population). compared to 2006 on 48.6% incidence increase was observed. despite this increase influenza activity in 2007 was among the lowest during the last four decades. regionally the incidence varied from 182.2 in pomorskie voivodeship to 2,957.1 in opolskie. children and adolescents under 15 years of age accounted for 33% of all cases (age specific incidence ... | 2009 | 19799242 |