The next pandemic influenza virus?

This publication has 4 references indexed in Scilit:

• Genetic Reassortment between Avian and Human Influenza A Viruses in Italian Pigs
  Virology, 1993
• Evolution and ecology of influenza A viruses.
  Microbiological Reviews, 1992
• The nucleoprotein as a possible major factor in determining host specificity of influenza H3N2 viruses
  Virology, 1985
• AN INFLUENZA EPICENTRE?
  The Lancet, 1982