Vincent, Alan, and Eric Freed talk about vesivirus contamination of bioreactors, pandemic influenza, maximizing the effect of vaccination by targeting children, chikungunya virus, and open access scientific journals.

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, and Alan talk about insect and human dengue virus host proteins, equine vaccine for WNV and EEEV, return of swine flu to humans, spread of polio in Africa, and listener email.