Vincent, Alan, Dick, and Hamish Young discuss the 2009 influenza pandemic, first 2009 H1N1 vaccine, hunting mosquitoes with midges, vaccine-associated polio in India, and adenoviruses.

Vincent, Alan, and 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.

Vincent, Alan, Dick, and Raul Andino recorded TWiV live at the ASM General Meeting in Philadelphia, where they discussed increased arterial blood pressure caused by cytomegalovirus infection, restriction of influenza replication at low temperature by the avian viral glycoproteins, first isolation of West Nile virus in Pennsylvania, and current status of influenza.

Vincent, Alan, and Raul Rabadan converse about polio survivors in iron lungs, bocavirus, structure of mimivirus, and genome sequence analysis of influenza H1N1 viruses.

On this special episode of TWiV, Vincent and Dr. Peter Palese, noted influenza expert, discuss the origin and pandemic potential of the new H1N1 influenza virus.

Vincent, Dick, Alan, and Eric F. Donaldson discuss a new test for influenza H5N1, poliovirus in Minnesota, Koala retrovirus, batteries made from viruses, and SARS.

Vincent, Dick, Alan, and Saul Silverstein revisit an ebolavirus needlestick accident, and discuss the role of TLR3 in formation of Negri bodies, a New England college closed by norovirus gastroenteritis, hand, foot, and mouth disease outbreak in China, and the exit of herpes simplex virus from latency by synthesis of VP16.

Vincent, Alan, and Rich Condit converse about induction of polyomavirus replication in multiple sclerosis patients treated with the MS drug Tysabri, the extent of human polyomavirus infection, selection of influenza vaccines for the 2009-10 season, cowpox virus transmission from animals to humans, vaccinia-like virus infecting humans and cattle in Brasil, and poxviruses.