Prolongation of Tick-Borne Encephalitis Cycles in Warmer Climatic Conditions.

ABSTRACT: Tick-borne encephalitis exhibits profound inter-annual fluctuations in incidence. Previous studies showed that three-fifths of the variation can be explained in terms of four superimposed oscillations: a quasi-biennial, triennial, pentennial, and a decadal cycle. This study was conducted to determine how these cycles could be influenced by climate change. Epidemiological data, spanning from the 1970s to the present, and originating from six regions/countries bridging Scandinavia and the Mediterranean, represented a temporal/latitudinal gradient. Spectral analysis of time series was used to determine variation in the cycles' length/amplitude with respect to these gradients. The analysis showed that-whereas the lengths of the shorter cycles do not vary substantially-cycles in the decadal ban

SUBMITTER: Zeman P 

PROVIDER: S-EPMC6888212 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature