title: On call. I was very interested in your December 2011 article on how obesity seems to spread through social networks. I understand that it's a new type of research, but I wonder if it might have overlooked the possibility that obesity might also be spread by an actual virus.
authors.forename: Harvey B
authors.initials: HB
authors.lastname: Simon
mesh_terms: D006801:Humans; D009765:Obesity; D012944:Social Support