Institution: | 1. Department of Infectious Diseases, County Hospital Ryhov, , J?nk?ping, Sweden;2. Department of Infectious Diseases, University Hospital Malm?, , Malm?, Sweden;3. Clinical Microbiology Laboratory, Department of Laboratory Medicine, County Hospital Ryhov, , J?nk?ping, Sweden;4. Department of Infectious Disease Control, County Hospital Ryhov, , J?nk?ping, Sweden;5. Swedish Institute for Infectious Disease Control, , Solna, Sweden |