Abstract:
:Puumala hantavirus (PUUV) causes haemorrhagic fever with renal syndrome in humans, an endemic disease in Finland. We aimed to study recent trends in PUUV infections in Finland, to evaluate whether there are regional differences in seasonality and long-term cycles and whether the patterns have changed over time. We analysed serologically confirmed acute PUUV infections reported to the National Infectious Disease Register from 1 April 1995 to 31 March 2014. A total of 30 942 cases of PUUV infections were identified during the study period. The average annual incidence was 31 cases/100 000 person-years with the highest in Eastern Finland and the lowest in Southwestern Finland. Throughout Finland there was not an increasing trend in incidence but changes in incidence, seasonality and long-term cycles differed regionally. Long-term cycles supported by high Bayesian posterior probabilities (73-100%) differed between the south and the north, shifting from 3 to 4 years, respectively. Temporal changes in seasonality were most prominent in Southwestern Finland. The pattern of human PUUV infection epidemiology probably primarily reflects the spatio-temporal interaction between bank-vole population dynamics and climate.
journal_name
Epidemiol Infectjournal_title
Epidemiology and infectionauthors
Sane J,Ollgren J,Makary P,Vapalahti O,Kuusi M,Lyytikäinen Odoi
10.1017/S0950268816000765subject
Has Abstractpub_date
2016-10-01 00:00:00pages
2883-8issue
13eissn
0950-2688issn
1469-4409pii
S0950268816000765journal_volume
144pub_type
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