In episode 34 of This Week in Virology, hosts Vincent Racaniello, Alan Dove, and guest Stephen Morse discuss progressive vaccinia in a smallpox vaccinee, arsenic and influenza in mice, facemasks and flu transmission, and antigenic and genetic analyses of the new H1N1 influenza virus.

Links for this episode:

• Progressive vaccinia in a military smallpox vaccinee
• Arsenic compromises the immune response to influenza in mice
• Facemasks prevent flu transmission in a mathematical model
• Serum cross-reactive antibody response to the new H1N1 influenza virus
• Antigenic and genetic characteristics of the new H1N1 influenza viruses
• Preparation of influenza virus vaccine seeds
• Paul Ewald on the evolution of virulence

Weekly Science Picks

• Alan Org-Mode
• Vincent Human/Swine A/H1N1 Influenza Origins and Evolution
• Stephen The Origin of Species by Charles Darwin