Humans Have Antibodies against a Plant Virus: Evidence from Tobacco Mosaic Virus Liu, Ruolan ; Vaishnav, Radhika A. ; Roberts, Andrew M. ; Friedland, Robert P. Abstract Publication: PLoS ONE Pub Date: April 2013 DOI: 10.1371/journal.pone.0060621 Bibcode: 2013PLoSO...860621L