Figure 2.

The number of publications in Scopus per year containing the search terms ‘contact network’ or ‘social network’ or ‘social-network’ or ‘association network’ or ‘contact analysis’ and ‘disease’ or ‘pathogen’ or ‘parasite’ in the title, abstract or keywords. The ‘wildlife’ category refers to publications with the search terms ‘wildlife’ or ‘wild animal’ or ‘social insect’, whereas ‘livestock’ refers to publications with the additional criteria of ‘poultry’ or ‘cattle’ or ‘cows’ or ‘swine’ or ‘pigs’ or ‘turkeys’ or ‘fishes’ or ‘livestock’ and not ‘Turkey (republic)’ and not ‘humans’. Search was run on 12 June 2014. This is an underrepresentation of publications, as many wild animals, such as mice, raccoons, apes and chimpanzees, did not show up in the ‘wildlife’ search.