Regional differences in long-term cycles and seasonality of Puumala virus infections, Finland, 1995-2014

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Sane , J , Ollgren , J , Makary , P , Vapalahti , O , Kuusi , M & Lyytikainen , O 2016 , ' Regional differences in long-term cycles and seasonality of Puumala virus infections, Finland, 1995-2014 ' , Epidemiology and Infection , vol. 144 , no. 13 , pp. 2883-2888 . https://doi.org/10.1017/S0950268816000765

Title: Regional differences in long-term cycles and seasonality of Puumala virus infections, Finland, 1995-2014
Author: Sane, J.; Ollgren, J.; Makary, P.; Vapalahti, O.; Kuusi, M.; Lyytikainen, O.
Other contributor: University of Helsinki, Medicum





Date: 2016-10
Language: eng
Number of pages: 6
Belongs to series: Epidemiology and Infection
ISSN: 0950-2688
DOI: https://doi.org/10.1017/S0950268816000765
URI: http://hdl.handle.net/10138/228225
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.
Subject: Epidemiology
hantavirus
statistics
surveillance
zoonoses
HANTAVIRUS INFECTIONS
NEPHROPATHIA-EPIDEMICA
RISK
ANTIBODIES
GERMANY
SMOKING
SWEDEN
3142 Public health care science, environmental and occupational health
3121 General medicine, internal medicine and other clinical medicine
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