Epidemiology of Resistant Microbial Strains Among Different Groups of People (Healthy, Infected and Exposed to Animals)

I group Hospitalised patients Inclusion Criteria * MDR bacteria (listed above) isolated from clinical specimen * hospitalisation to the Tartu University Hospital or North Estonia Medical Centre or West Tallinn Central Hospital or East-Tallinn Central Hospital or The Hospital of Reconstructive Surgery II group Healthy volunteers Inclusion Criteria * age \>6 months * have not received any antibacterial treatment in previous 3 months * have not been hospitalised in previous 3 months III group Dog owners Inclusion Criteria * age \>6 months * have not received any antibacterial treatment in previous 3 months * have not been hospitalised in previous 3 months * owning a dog IV group veterinarians Inclusion Criteria * have not received any antibacterial treatment in previous 3 months * have not been hospitaliZed in previous 3 months * working as a veterinarian V group pig farmers Inclusion Criteria * have not received any antibacterial treatment in previous 3 months * have not been hospitalized in previous 3 months * occupation as a pig farmer