This Week in Virology

Vincent Racaniello, Alan Dove and Brianne Barker discuss a newly identified mechanism for RNA-guided DNA recognition and genetic control that may predate CRISPR pathways. They also examine research proposing that features of Alzheimer’s disease neuropathology could have originated as a host response to infection in the brain, including evidence concerning phosphorylated tau and herpesvirus activity. The episode connects ancient molecular recognition mechanisms with questions about antiviral defence.

Hosted by Vincent Racaniello, Alan Dove

Vincent Racaniello speaks with Roberto Cattaneo and Kalpana Yadav at the 2026 American Society for Virology meeting about measles persistence in the brain. They discuss selection for highly fusogenic viral variants when usual measles receptors are absent, neuron-to-neuron spread, and the development of subacute sclerosing panencephalitis, a rare, fatal delayed complication of measles infection.

Hosted by Vincent Racaniello

Paul Bieniasz joins Vincent Racaniello, Alan Dove and Kathy Spindler to discuss his laboratory’s research on coronavirus genetic variation. The conversation examines how the NSP15 nuclease cuts viral RNA into short pieces that can be reinserted elsewhere, producing insertion mutations and new furin-cleavage sites at the spike S1/S2 boundary. The episode links the underlying preprint and includes listener correspondence and weekly selections.

Hosted by Vincent Racaniello, Alan Dove

Vincent Racaniello, Kathy Spindler and Brianne Barker discuss research using generative AI to design complete bacteriophage genomes, including reported viable phages active against antibiotic-resistant bacteria. They also examine a study linking recombinant shingles vaccination with lower cardiovascular-event risk. The discussion connects genome modelling, experimental virology and vaccine research, alongside listener letters and weekly selections.

Hosted by Vincent Racaniello, Brianne Barker