You might recall learning in high school biology that bacteriophage infection of a host can lead to either replication and cell lysis, or integration of the viral genome into the host (illustrated). The latter event, called lysogeny, spares the host from virus induced killing. For some phages, the decision between lysis and ...

The TWiVaniellos discuss a thermostable poliovirus empty capsid vaccine, and two cell genes that act as a switch between entry and clearance of picornavirus infection. You can find TWiV #425 at microbe.tv/twiv, or listen below. [powerpress url="http://traffic.libsyn.com/twiv/TWiV425.mp3"] Click arrow to play Download TWiV 425 (65 MB .mp3, 107 min) Subscribe (free): iTunes, RSS, email Become a patron of TWiV!

A unique feature of eukaryotic cells, which distinguishes them from bacteria, is the presence of a membrane-bound nucleus that contains the chromosomal DNA (illustrated; image credit). Surprisingly, a nucleus-like structure that forms during viral infection of bacteria is the site of viral DNA replication (link to paper). During infection of Pseudomonas bacteria ...

I spoke with Jonna Mazet, PhD, UC Davis School of Veterinary Medicine, about emerging pathogen surveillance and public health. Dr. Mazet is the Principal Investigator and Global Director of the novel viral emergence early warning project, PREDICT, that has been developed with the US Agency for International Development's (USAID) Emerging Pandemic ...

Trudy joins the the TWiVlords to discuss new tests for detecting prions in the blood, and evidence showing that foamy retroviruses originated in the seas with their jawed vertebrate hosts at least 450 million years ago. You can find TWiV #424 at microbe.tv/twiv, or listen below. [powerpress url="http://traffic.libsyn.com/twiv/TWiV424.mp3"] Click arrow to ...