interesting dissertationby Marta Enderin...
https://64.233.167.104/search?q=cache:5jsVI27JCaMJ:archiv.ub.uni-heidelberg.de/volltextserver/volltexte/2005/5494/pdf/Endversion4.pdf+isolation+reovirus+intravenous&hl=en
I have not come across this before, it looks new. It's very technical, but there may be some useful information for anybody who can decifer the science.