There were signs that swine flu posed a human pandemic threat over a decade ago, yet no one paid any attention.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/swine-flu-predictable-pandemic
[2] http://admin.indiaenvironmentportal.org.in/category/author/debora-mackenzie
[3] http://admin.indiaenvironmentportal.org.in/category/journal/new-scientist
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pigs
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/epidemics
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/viral-diseases
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mexico
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-states-america-us
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/global