1. Division of Natural Sciences, Kristianstad University , Kristianstad, Sweden
2. Department of Animal Environment and Health, SLU Swedish University of Agricultural Sciences , Skara, Sweden
3. Department of Health Care Sciences, Ersta Sköndal Bräcke University College , Stockholm, Sweden
4. Centre for Ecology and Evolution in Microbial Model Systems, Linneaus University , Kalmar, Sweden