1. Section of Clinical Bacteriology, Department of Medical Sciences, Uppsala University , Uppsala, Sweden
2. Section for Zoonotic Ecology and Epidemiology, Linnaeus University , Kalmar, Sweden
3. Department of Contaminant Research, Swedish Museum of Natural History , Stockholm, Sweden
4. Department of Zoology, Gothenburg University , Gothenburg, Sweden
5. Aquatic Biology and Chemistry, Kristianstad University , Kristianstad, Sweden
6. Section of Infectious Diseases, Department of Medical Sciences, Uppsala University , Uppsala, Sweden