| first report of schmallenberg virus infection in cattle and midges in poland. | two outbreaks of schmallenberg virus (sbv) infection that coincided with the introduction of two bulls imported from france into two herds located in west pomerania and silesia provinces in poland are described in detail. the first sbv real-time rt-pcr-positive result was obtained during routine testing of one of the imported bulls. the second bull and the affected farms were tracked by further investigation. transmission of sbv into polish cattle herds where the bulls were imported was confirme ... | 2013 | 23331471 |