virology blog

About viruses and viral disease

Vincent Racaniello

TWiV 937: Pediatric hepatitis with Emma Thomson

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From the European Society for Clinical Virology 2022 Conference in Manchester UK, Vincent speaks with Emma Thomson about the recent outbreak of pediatric hepatitis of unknown etiology and the finding that it is linked to infection by adenovirus-associated virus 2.

Hosts: Vincent Racaniello

Guest: Emma Thomson

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Download TWiV 937 (50 MB .mp3, 83 min)
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Intro music is by Ronald Jenkees

Send your virology questions and comments to twiv@microbe.tv

TWiV 936: Clinical update with Dr. Daniel Griffin

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In his weekly clinical update Dr. Griffin discusses detection of a highly divergent type 3 vaccine-derived poliovirus in a child with a severe primary immunodeficiency disorder, severe respiratory illnesses associated with rhinoviruses and/or enteroviruses including EV-D68, effects of vaccination and previous infection on Omicron infections in children, COVID-19-associated hospitalizations among vaccinated and unvaccinated adults 18 years or older in 13 US states, effectiveness of COVID-19 vaccines over time prior to Omicron emergence in Ontario, Canada, nasal IgA wanes 9 months after hospitalization with COVID-19 and is not induced by subsequent vaccination,  resistance of SARS-CoV-2 Omicron subvariant BA.4.6 to antibody neutralization, persistent circulating SARS-CoV-2 spike associated with post-acute COVID-19 sequelae, and impact of COVID-19 vaccination on the risk of developing long-covid and on existing long-covid symptoms.

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Show notes at microbe.tv/twiv

TWiV 931: Driven to immunodistraction

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TWiV reviews the genetic characterization of a new strain of type 2 oral polio vaccine and its implications for eradication, and how a polymorphism in humans comprising a single amino acid change in an antibody molecule regulates vaccine elicitation of broadly neutralizing antibodies against influenza virus HA.

Hosts: Vincent Racaniello, Dickson Despommier, Alan Dove, Kathy Spindler, and Brianne Barker

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Show notes at microbe.tv/twiv

TWiV 930: Clinical update with Dr. Daniel Griffin

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In his weekly clinical update Dr. Griffin discusses antibody response against nonpoliovirus enteroviruses, clinical presentation and virological assessment of confirmed human monkeypox virus cases in Spain, object and surface contamination with monkeypox virus, monkeypox virus infection in humans across 16 countries, clinical characteristics of ambulatory and hospitalized patients with monkeypox virus infection, compassionate use of Tecovirimat for the treatment of monkeypox infection, monitoring of Pfizer-BioNTech vaccine among children, Pfizer and BioNTech announce updated vaccine data supporting efficacy in children, direct capture of neutralized RBD enables rapid point-of-care assessment of SARS-CoV-2 neutralizing antibody titer, Pfizer and BioNTech submit application for bivalent vaccine, and Oral Nirmatrelvir and Ritonavir in non-hospitalized vaccinated patients with COVID-19.

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Download TWiV 930 (29 MB .mp3, 45 min)
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Show notes at microbe.tv/twiv

TWiV 919: Motivated by volatiles

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TWiV reviews the FDA decision to update COVID-19 vaccine boosters in the fall, the meaning of fatigue with respect to long COVID, and a skin volatile induced by flavivirus reproduction that attracts mosquitoes to the infected host.

Hosts: Vincent Racaniello, Rich Condit, Kathy Spindler, and Brianne Barker

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Download TWiV 919 (61 MB .mp3, 102 min)
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Show notes at microbe.tv/twiv