1. Smedby Health Center, Kalmar, Sweden; Linköping University, Linköping, Sweden;
2. Erasmus Medical Center, Rotterdam, the Netherlands;
3. Kalmar University, Kalmar, Sweden;
4. Swedish Institute for Infectious Disease Control, Solna, Sweden;
5. Kristianstad University, Kristianstad, Sweden;
6. Swedish Museum of Natural History, Stockholm, Sweden;
7. Ottenby Bird Observatory, Degerhamn, Sweden;
8. Kalmar University, Kalmar, Sweden;Lund University, Lund, Sweden;
9. Kalmar University, Kalmar, Sweden;Umeå University, Umeå, Sweden