Vincent, Dick, Alan, and Jennifer Drahos consider Marburg virus in Egyptian fruit bats, bacterial citrus pathogen found in shipping facility, canine parvovirus in Michigan, Relenza-resistant influenza virus, new HIV from gorillas, and public engagement on H1N1 immunization program.

Vincent and Glenn Rall chat about koi herpesvirus, H1N1 influenza vaccine produced in insect cells, attack by a rabid raccoon, and measles.

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.

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.

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.

Vincent, Alan, and Hamish Young discuss bacteriophages in viral vaccines, enteroviruses and diabetes, inhibition of Hendra and Nipah virus replication by the malaria drug chloroquine, and viroids.