plasmid rescue造句

The Treanor et al . study was on vaccine produced from the human isolate ( A / Vietnam / 1203 / 2004 H5N1 ) of a virulent clade 1 influenza A ( H5N1 ) virus with the use of a plasmid rescue system, with only the hemagglutinin and neuraminidase genes expressed and administered without adjuvant . " The rest of the genes were derived from an avirulent egg-adapted influenza A / PR / 8 / 34 strain.
It's difficult to find plasmid rescue in a sentence. 用plasmid rescue造句挺难的