An epidemic of the viral disease nephropathia epidemica (NE) has been linked to increases in the vole population caused by hotter summers, milder winters and increased seedcrop production by broadleaf trees. Research published in BioMed Central's open access International Journal of Health Geographics links outbreaks of this rodent-borne disease to known effects of global warming.
Dr Jan Clement from the Department of Microbiology & Immunology at Belgium's Rega Institute (University of Leuven) worked with a team of medical researchers and bioscience-engineers to investigate outbreaks of NE in Belgium. Dr. Clement founded the Belgian Hantavirus Reference Centre in 1985, and noted that of the 2,200 cases since then, 828 (37.6%) occurred in just the last three years, 2005-2007. The epidemic has been shown to extend to neighboring countries such as France, Germany, The Netherlands, and Luxembourg. He said, "This animal-borne disease, scarcely known before 1990, has been increasing in incidence in Belgium with a cyclic pattern, reaching epidemic proportions since 2005. The fact that the growing combined effect of hotter summer and autumn seasons is matched by the growth of NE in recent years means this epidemic can be considered an effect of global warming".
NE is caused by infection with Puumala virus (PUUV), which is spread by the bank vole, a rodent common throughout most of Europe. The authors believe that warmer weather causes increases in the amount of 'mast', plant seeds from oak and beech trees, that forms the voles' staple diet. This plethora of food results in increases in the vole population and warm summers raise the chances that people will visit the forests where the voles live. According to Clement, "Since 1993, each NE peak has been preceded by increased autumnal mast formation the year before, resulting in yearly NE numbers significantly higher than those during the mast years themselves".
PUUV is a hantavirus, a g
'/>"/>
| Contact: Graeme Baldwin graeme.baldwin@biomedcentral.com 44-020-707-94804 BioMed Central Source:Eurekalert |
Related biology news :
1. Decline of carbon-dioxide-gobbling plankton coincided with ancient global cooling
2. Lifecycles of tropical cyclones predicted in global computer model
3. USC researchers head global effort to study genetic risks that contribute to psychiatric diseases
4. Using water to understand human society, from the industrial revolution to global trade
5. Light pollution offers new global measure of coral reef health
6. Global warming is changing organic matter in soil
7. Issues at intersection of climate change and health impact global well-being
8. UI researchers help to improve carbon measurements in global climate studies
9. Global warming link to amphibian declines in doubt
10. Less than one month to opening of world’s largest global congress on osteoporosis
11. Global warming predicted to hasten carbon release from peat bogs
| Copyright © 2003-2012 Bio-Medicine. All rights reserved. ABOUT | CONTACT US | DISCLAIMER | PRIVACY POLICY | TERMS AND CONDITIONS |  |