Recently I had a false positive PCR result for SARS-CoV-2. To confirm that I was not infected, I did an assay for viral antibodies in my blood using a rapid, at home, lateral flow assay. In this video I explain how the assay works and what my results mean.

TWiV reviews the difficulties in predicting species susceptibility to SARS-CoV-2 infection by only examining the ACE2 protein, and the olfactory mucosa as a portal of entry into the central nervous system in COVID-19 patients. Click arrow to playDownload TWiV 690 (71 MB .mp3, 120 min)Subscribe (free): iTunes, Google Podcasts, RSS, email Become a patron of TWiV! Show notes ...

Daniel Griffin provides his weekly clinical report on COVID-19, including analysis of vitamin D levels in patients, information on Moderna and Pfizer vaccines, distribution plans suggested by ACIP, and more. Click arrow to playDownload TWiV 689 (22 MB .mp3, 37 min)Subscribe (free): iTunes, Google Podcasts, RSS, email Become a patron of TWiV! Show notes at microbe.tv/twiv

by Gertrud U. Rey Viruses are universally defined as "obligate intracellular parasites" because they cannot replicate outside of a host cell and depend on that cell and its various metabolic factors for replicating their genome. Based on this definition, most virologists agree that viruses are not alive.  When giant viruses ...

The TWiVers analyze efficacy of the AstraZeneca/Oxford adenovirus vectored vaccine, SARS-CoV-2 did not infect miners who became ill 8 years ago after cleaning bat guano from a cave in Yunnan Province, and induction of antigen-specific germinal center responses and production of neutralizing antibody by SARS-CoV-2 mRNA vaccine but not purified ...