Maedi-Visna and Related Diseases formatIsbn:Softcover - 9781461288923 biological and socio-cultural characteristics of

biological and socio-cultural characteristics of hosts

Abstract: Dissensfrei scheint

Im Rahmen der Arbeit wird eine Methode zur Klassifizierung von Unfallszenarien entwickelt

Um sich ein Bild von den neuen Verhältnissen in Sowjetrussland machen zu können

Maedi-Visna and Related Diseases formatIsbn:Softcover - 9781461288923 biological and socio-cultural characteristics ofG. Petursson and Rikke Hoff J0rgensen The concept of slow viral infections was first put forward in 1954 by Dr. Bjorn Sigurdsson, an Icelandic physician who had been studying some sheep diseases which were introduced into Iceland with the importation of a foreign breed of sheep in 1933. Sigurdsson's main criteria for defining slow infec tions were a very long initial period without clinical signs lasting months or even years following infection and a