Viral genomes are unusual because they can be based on RNA or DNA, in contrast to all cellular life forms, which have DNA as their genetic information. An unusual new virus has been discovered that appears to have sequences from both an RNA and a DNA virus. The new virus ...

On episode #191 of the science show This Week in Virology, Nissin joins the TWiV crew to discuss an outbreak of lethal disease among Cambodian children, and recombination among attenuated herpesvirus vaccines leading to pathogenic viruses. You can find TWiV #191 at www.microbe.tv/twiv.

I still wonder why the influenza virus H5N1 ferret transmission studies generated such fear and misunderstanding among the public, the press, and even some scientists. I still cannot fully explain what transpired, but now that the papers have been published some new clues have emerged. In my opinion, the main ...

On episode #190 of the science show This Week in Virology, Vincent, Alan, and Kathy review selection of influenza H5N1 viruses that can transmit among ferrets by aerosol. You can find TWiV #190 at www.microbe.tv/twiv.

On episode #41 of the science show This Week in Parasitism, Vincent and Dickson review medically important arthropods. You can find TWiP #41 at microbeworld.org/twip.