

This Week in Virology
Vincent Racaniello
TWiV is a weekly netcast about viruses - the kind that make you sick. Brought to you by four university professors and a science writer.
Episodes
Mentioned books

Jun 1, 2024 • 1h 41min
TWiV 1119: Gene editing latent herpes
TWiV reviews viral shedding and antibody responses of men with acute monkeypox virus infection, and gene editing for latent herpes simplex virus infection reduces viral load and shedding. Hosts: Vincent Racaniello, Rich Condit, Kathy Spindler, and Angela Mingarelli Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Become a patron of TWiV! Links for this episode MicrobeTV Discord Server MicrobeTV store at Cafepress 2024 International HBV Meeting Michelson Prizes: Next Generation Grants Register for ASV Annual Meeting Monkeypox virus shedding (Nat Commun) Gene editing of herpes simplex virus (Nat Commun) Letters read on TWiV 1119 Timestamps by Jolene. Thanks! Weekly Picks Angela – Unconventional Sex Let Anglerfish Conquer the Deep Ocean Kathy – Doonesbury from 5-26-24. And Publish or Perish game Rich – Sky: Giant Sunspot Region 3664 and Resulting Auroras APOD video Vincent – Mysterious sea urchin plague is spreading through the world's oceans Listener Pick Abdulaziz – Biomedical Scientist Answers Pseudoscience Questions Intro music is by Ronald Jenkees Send your virology questions and comments to twiv@microbe.tv Content in this podcast should not be construed as medical advice.

Jun 1, 2024 • 51min
TWiV 1118: Clinical update with Dr. Daniel Griffin
In his weekly clinical update, Dr. Griffin delves into highly pathogenic H5N1 infection of hunting dogs, dairy cattle, humans and alpacas before reviewing the recent statistics on SARS-CoV-2 infection, risks factors associated with the development of severe COVID-19 in pediatric patients, virus transmission on commercial airline flights, the guidelines for spring administration of COVID vaccines boosters, the emergency use application of a pre-exposure prophylactic, a drug interaction database, absence of durability of XBB.1.15 vaccine induced immunity and continues to dispel the myth of viral rebound, when to use steroids and the benefits of convalescent plasma, what do when healthcare workers succumb to SARS-CoV-2 infection, and discusses why development of long COVID should be included in the development of treatments for acute viral disease, if vaccination effects long COVID, structural impairment of brain during long COVID, how cognitive and respiratory function may be compromised in long COVID. For more information about long COVID-19 listen to TWiV 1088 and for H5N1 in dairy cattle and unpasteurized milk TWiV 1117. Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Become a patron of TWiV! Links for this episode Bird dogs infected with high pathogenic avian flu H5N1(AKC) Hunting dogs with antibodiesagainst influenza A (H5N1) (Emerging Infectious Diseases) Dairy cattle and 2 humans infected with highly pathogenic avian influenza A (H5N1) (MMWR) Daisy, are you reading NEJM: cow's milk infected with highly pathogenic avian influenza A (H5N1)? (NEJM) Better yet, listen TWiV 1117: pol dances with RNA to learn if mice can transmit H5N1 to each other Alpacasinfected with for highly pathogenic avian influenza A (H5N1) (CIDRAP) USDA is now inspecting for highly pathogenic avian influenza A (H5N1) in alpacas in Idaho (USDA APHIS) COVID-19 deaths COVID-19 national trend Risk factors for pediatric critical COVID-19 (JPIDS) Kids and their underlying conditions for increased risk for severe COVID-19 (CIDRAP) SARS-CoV-2 transmission during airline flights (Environmental Research and Public Health) Spring vaccine advice(CIDRAP) Older adult spring booster available (CDC) Advisory committee for immunization practice slides(CDC) Really, durable immune response of XBB.1.5 vaccines against Omicron subvariants (NEJM) EUA for pemgarda(FDA) Infusion centers near you! (pemgarda.com) CDC quarantine guidelines (CDC) Early phase of SARS-CoV-2 infection (COVID.gov) NIHCOVID-19 treatment guidelines (NIH) Infectious Disease Society guidelinesfor treatment and management (IDSociety) Drug interaction checker (University of Liverpool) Molnupiravirsafety and efficiacy (JMV) Convalescent plasma recommendations for immunocompromised (IDSociety) Updated respiratory virus guidelines (CDC) What to do when your healthcare provider is infected with SARS-CoV-2 (CDC) Managing healthcare staff shortages (CDC) Steroids, dexamethasone at the right time (OFID) Anticoagulation guidelines (hematology.org) Long COVID evidence based review TWiV shout out (TWiV 1088) Post COVID-19 following virus vaccination (Nat Comm) Why include long COVID-19 when developing novel treatments for acute disease (JID) Cerebral microstructural alterations post COVID-19 cognitive, memory and fatigue (Nat Comm) Cognitive impairment prevalence and co-occurrence in children and young adults 12 months after Omicron infection (Brain) Persistent static lung hyperinflation and small airway dysfunction in long COVID (Respiratory Research) Long COVID evidence based review TWiV shout out Contribute to our Floating Doctors fundraiser Letters read on TWiV 1118 Dr. Griffin's COVID treatment summary (pdf) Timestamps by Jolene. Thanks! Intro music is by Ronald Jenkees Send your questions for Dr. Griffin to daniel@microbe.tv

May 25, 2024 • 1h 53min
TWiV 1117: Pol dances with the RNA that brought it
TWiV discusses presence of infectious avian H5N1 influenza virus in raw milk from infected dairy cows. dynamics of measles immunity from birth and following vaccination, and a mechanism for cis-preferential reverse transcription revealed by deep mutational scanning of hepatitis B virus. Hosts: Vincent Racaniello, Dickson Despommier, Alan Dove, Rich Condit, Kathy Spindler, and Brianne Barker Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Become a patron of TWiV! Links for this episode MicrobeTV Discord Server MicrobeTV store at Cafepress 2024 International HBV Meeting Michelson Prizes: Next Generation Grants Register for ASV Annual Meeting H5N1 influenza virus in raw cow milk infects mice (NIAID News) Dynamics of measles virus immunity from birth (Nat Comm) Mechanism of cis-preferential HBV reverse transcription (Cell) Timestamps by Jolene. Thanks! Weekly Picks Dickson – Oldest virus in Neanderthal bones Brianne – Jeopardy! winner reveals entwined memory systems make a trivia champion Kathy – Bright future of intelligent fabrics primary article and Self-dyeing textiles (primary article) Rich – Farewell to HD Atlas; Boston Dynamics Retires HD Atlas Robot Alan – Why vaccinating cattle against H5N1 is hard Vincent – Singapore Airlines turbulence: why climate change is making flights rougher Intro music is by Ronald Jenkees Send your virology questions and comments to twiv@microbe.tv

May 25, 2024 • 47min
TWiV 1116: Clinical update with Dr. Daniel Griffin
In his weekly clinical update, Dr. Griffin delves highly pathogenic H5N1 biology including its circulation in New York City, being able to infect cells within mammary glands and why testing is not supported before reviewing the recent statistics on SARS-CoV-2 infection, how vaccination reduced deaths and hospitalizations associated with COVID-19 and how to take off PPE to reduce virus transmission, discussing the guidelines for spring administration of COVID vaccines boosters, the emergency use application of a pre-exposure prophylactic, a drug interaction database and the global phase 3 trail of a novel antiviral, continues to dispel the myth of viral rebound, when to use steroids and the benefits of convalescent plasma, what do when healthcare workers succumb to SARS-CoV-2 infection, reminisces about when available monoclonal antibody therapies were effective, and discusses muscle training/exercise for treatment of PASC/long COVID and the use of RNase for its treatment. For more information about long COVID-19 listen to TWiV 1088. Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Become a patron of TWiV! Links for this episode Clade 2.3.4.4b of highly pathogenic H5N1 in NYC (J Vi) Avian and human influenza A receptors in bovine mammary glands (bioRxiv) Where livestock infected with HPAI live (USDA) Another dairy worker contracted bird flu (NY Times) Reluctance to test for H5N1 (STAT News) COVID-19 national trend (CDC) COVID-19 deaths (CDC) Estimates of hospitalization and deaths prevaccination era (Emerg Inf Dis) Slightly less than half of COVID-19 patients died prevaccination (CIDRAP) Spring vaccine advice (CIDRAP) Older adult spring booster available (CDC) Advisory committee for immunization practices slides (CDC) Advisory committee for immunization practices spring 2024 COVID-19 boosters (CDC) EUA for pemgarda (FDA) CDC Quarantine guidelines (CDC) Early phase of SARs-CoV-2 infection (COVID.gov) NIH COVID-19 treatment guidelines (NIH) Infectious Disease Society guidelines for treatment and management (IDSociety) Drug interaction checker (University of Liverpool) Global phase 3 study of ensitrelvir (Shionogi) Molnupiravir safety and efficacy (JMV) Convalescent plasma recommendation for immunocompromised (IDSociety) Updated respiratory virus guidances (CDC) What do when your heathcare provider is infected with SARS-CoV-2 (CDC) Managing healthcare staffing shortages (CDC) Remember when monoclonal antibody therapies worked (JID) Steroids, dexamethasone at the right time (OFID) Anticoagulation guidelines (hematology.org) Global clinical study of long COVID-19 (International Journal of Infecitous Diseases) Cardiopulmonary exercises testing of children with long COVID-19 (Pediatric Infectious Disease Journal) Phase 2 trial of RSVL-132 for severe fatigue related to PASC (CID) Muscle training may improve diaphragm muscle weakness 2 years after COVID-19 (American Journal of Respiratory Critical Care Health) Long COVID evidence based review TWiV shout out (TWiV 1088) Contribute to our Floating Doctors fundraiser Letters read on TWiV 1116 Dr. Griffin's COVID treatment summary (pdf) Timestamps by Jolene. Thanks! Intro music is by Ronald Jenkees Send your questions for Dr. Griffin to daniel@microbe.tv

May 19, 2024 • 1h 40min
TWiV 1115: Calling the CoPs on flu
TWiV discusses a phase 3 trial of a self-amplifying mRNA COVID-19 vaccine and the importance of innate and T cell populations in protection against influenza. They also explore the development of RNA machines, nitrogen-fixing organelles in marine algae, a lost branch of the Nile, and changing USDA gardening zones due to climate change.

May 18, 2024 • 48min
TWiV 1114: Clinical update with Dr. Daniel Griffin
In his weekly clinical update, Dr. Griffin delves into discussing drinking "raw" milk possessing H5N1 influenza virus, if the virus can reproduce in the human gut, and the meaning of finding viral RNA in wastewater samples before reviewing the recent statistics on SARS-CoV-2 infection, the guidelines for spring administration of COVID vaccines boosters, withdrawal of AstraZeneca's SARS-CoV-2 vaccine from the European market, discusses the emergency use application of a pre-exposure prophylactic, continues to dispel the myth of viral rebound, when to use steroids and the benefits of convalescent plasma, what do when healthcare workers succumb to SARS-CoV-2 infection, if administration of colchicine for the management of COVID-19, compares and provides information for the enrollment into the NIH clinical trials of long COVID and its effects on sleep, exercise intolerance and the cognitive profile in multiple sclerosis and post-COVID, exercise intolerance and post-exertional malaise. For more information about cow and milk infection by H5N1 listen to the discussion with Richard Webby on TWiV 1113 and for long COVID-19 listen to TWiV 1088. Dr. Griffin also provides a list of apps for monitoring one's health including brain health. Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Become a patron of TWiV! Links for this episode Who demands milk infected with H5N1? (Futurism) Uncowed by milk possessing H5N1 (LA Times) Cow flu flying around for 4 months (CNN) The unpasteurized raw milk institute (Raw Milk Institute) Infection and reproduction of H5N1 in the human gut (JID) Wastewater samples identified H5N1 in 9 cities (medrxiv) Richard Webby, is H5N1 a concern? (TWiV 1113) COVID-19 national trend (CDC) COVID-19 deaths (CDC) Spring vaccineadvice (CIDRAP) Older adult spring booster available (CDC) Advisory committee for immunization practices slides (CDC) Advisory committee for immunization practices spring 2024 COVID-19 boosters (CDC) Withdrawal of Astra-Zeneca SARS-CoV-2 vaccine in Europe (European Medicines Agency) Astra-Zeneca withdraws SARS-CoV-2 vaccine from market (AP news) Global vaccine data/adverse event network (Vaccine) EUA for pemgarda (FDA) CDC Quarantine guidelines (CDC) Early phase of SARs-CoV-2 infection (COVID.gov) NIH COVID-19 treatment guidelines (NIH) Infectious Disease Society guidelines for treatment and management (IDSociety) Overuse ofantibiotics for COVID-19: a viral disease (European Society of Clinical Microbiology and Infectious Diseases) Molnupiravir safety and efficacy (JMV) Convalescent plasma recommendation for immunocompromised (IDSociety) Outpatient treatment with concomitant vaccine-boosted convalescent plasma (mBio) Updated respiratory virus guidances (CDC) What do when your heathcare provider is infected with SARS-CoV-2 (CDC) Managing healthcare staffing shortages (CDC) Steroids,dexamethasone at the right time (OFID) Anticoagulation guidelines (hematology.org) Colchicine for managing COVID-19 (BMC Pulmonary Medicine) Colchicine guidelines (ID Society) Long COVID evidence based review TWiV shout out (TWiV 1088) NIH long COVID sleep disturbance, exercise intolerance and post exertional malaise clinical trials (NIH News) COVID-19 Yorkshire rehabilitation scale (BML Open Respiratory Research) Visible heart monitor (Makevisible) Bearable app (Bearable) Tracking your chronic illness using Flaredown (Flaredown) Improving your brain health (BrainHQ)Vanderbilt's long COVID resources: podcasts and books (Vanderbilt University) Contribute to our Floating Doctors fundraiser Letters read on TWiV 1114 Dr. Griffin's COVID treatment summary (pdf) Timestamps by Jolene. Thanks! Intro music is by Ronald Jenkees Send your questions for Dr. Griffin to daniel@microbe.tv

May 12, 2024 • 1h 21min
TWiV 1113: Influenza virus H5N1 in cows' milk with Richard Webby
Richard Webby joins TWiV to review the history of avian H5N1 influenza virus, the recent change in epidemiological patterns, infection of dairy cattle in the US, and the risk of an outbreak in humans. Hosts: Vincent Racaniello, Alan Dove, and Brianne Barker Guest: Richard Webby Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Become a patron of TWiV! Links for this episode MicrobeTV Discord Server MicrobeTV store at Cafepress Webby research laboratory H5N1 virus in dairy cattle and cats (Emerg Inf Dis) Emergence of H5N1 virus in dairy cattle (bioRxiv) Spillover potential of H9N2 bat virus (Nat Commun and TWiV 1111) Letters read on TWiV 1113 Timestamps by Jolene. Thanks! Weekly Picks Brianne – The Little Researcher (from Bioss) Alan – Global Polio Eradication Initiative's OPV switch was "unqualified failure." Vincent – Errant Science Listener Picks Moragh – Paper Cuts Podcast Intro music is by Ronald Jenkees Send your virology questions and comments to twiv@microbe.tv

May 11, 2024 • 47min
TWiV 1112: Clinical update with Dr. Daniel Griffin
Dr. Daniel Griffin delves into infections in dairy cattle, COVID booster shots and long COVID prevalence, emergency use of prophylactic, oral antiviral therapies for COVID, dispelling viral rebound myth, cognitive comparison post-COVID and MS, exercise intolerance, impact on Kenyan refugee camp, data accuracy in pandemics, concerns over NUSIN product, traveling to Europe with health issues.

May 5, 2024 • 1h 40min
TWiV 1111: Taming of the flu
TWiV reviews viruses in the news: Chinese scientist who released the SARS-CoV-2 genome sequence sleeps in the street, a case of measles in Haifa, spread of waterborne infectious diseases in Gaza, interstate spread of avian influenza A(H5N1) in dairy cattle, and an orangutan heals himself with medicinal plants, followed by identification of a cell receptor for parechoviruses, and blockade of necroptosis prevents lung injury in severe influenza. Hosts: Vincent Racaniello, Dickson Despommier, and Alan Dove Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Become a patron of TWiV! Links for this episode MicrobeTV Discord Server MicrobeTV store at Cafepress Become a member of ASV (asv.org) The New City by Dickson Despommier (blog post) International Conference on Pandemic Preparedness Chinese virologist sleeps on street (Nature) Measles in Haifa (Jerusalem Post) Waterborne illness spreads in Gaza (Reuters) Interstate spread of H5N1 virus in dairy cattle (bioRxiv) Orangutan uses medicinal plants (Science) Parechovirus cell receptor identified (Nat Comm) Necroptosis blockade prevents lung injury in influenza (Nature) Necroptosis, pyroptosis and apoptosis (Cell Mol Immunol) Letters read on TWiV 1111 Timestamps by Jolene. Thanks! Weekly Picks Dickson – NASA's Webb Finds Ethanol, Other Icy Ingredients for Worlds Alan – MyClimate.org calculators Vincent – Twenty-Five Lectures in Virology 2024 Listener Picks Alan – NPR story and interactive quiz on pandemic respiratory disease transmission Az – H5N1 Avian Flu in Mammals Intro music is by Ronald Jenkees Send your virology questions and comments to twiv@microbe.tv

May 4, 2024 • 52min
TWiV 1110: Clinical update with Dr. Daniel Griffin
In his weekly clinical update, Dr. Griffin begins with discussing if the antibiotic neomycin is really a pan-antiviral countermeasure, then reviews the recent statistics on SARS-CoV-2 infection before deep diving into if shedding and the rapid antigen test results correlate, the guidelines for spring administration of COVID vaccines boosters, whether COVID booster associates with the long COVID prevalence, discusses the emergency use application of a pre-exposure prophylactic, revised guidelines for how to treat respiratory viral infection guidelines by the CDC, the caveats for improper use of antibiotics to treat SARS-CoV-2 (a viral infection), continues to dispel the myth of viral rebound, when to use steroids and the benefits of convalescent plasma, what do when healthcare workers succumb to SARS-CoV-2 infection, if administration of an anti-immunoglobulin E monoclonal antibody can be used for COVID-19 treatment, if inhibiting T-cell activation will reduce secretion and production of inflammatory cytokines including IL-6, if changes in the gut microbiome associate with post -acute COVID-19 syndrome, and the pulmonary and neurologic determinants of long COVID-19 such as the presence of neurofilament light chain in plasma. For more information about this body of work, listen to TWiV 1088. Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Become a patron of TWiV! Links for this episode Intranasal antibiotic evokes antiviral response (PNAS) COVID-19 national trend (CDC) COVID-19 deaths (CDC) SARS-CoV-2 shedding vs rapid antigen test performance (MMWR) Spring vaccineadvice (CIDRAP) Older adult spring booster available (CDC) Advisory committee for immunization practices slides (CDC) Advisory committee for immunization practices spring 2024 COVID-19 boosters (CDC) COVID-19 booster take: cross-sectional study (Vaccine) EUA for pemgarda (FDA) CDC Quarantine guidelines (CDC) NIH COVID-19 treatment guidelines (NIH) Infectious Disease Society guidelines for treatment and management (IDSociety) Overuse ofantibiotics for COVID-19: a viral disease (European Society of Clinical Microbiology and Infectious Diseases) Can you believe that antibiotics are ineffective against a viral illness (NKT Institute) Molnupiravir safety and efficacy (JMV) Convalescent plasma recommendation for immunocompromised (IDSociety) Outpatient treatment with concomitant vaccine-boosted convalescent plasma (mBio) Updated respiratory virus guidances (CDC) What do when your heathcare provider is infected with SARS-CoV-2 (CDC) Managing healthcare staffing shortages (CDC) Steroids,dexamethasone at the right time (OFID) Anticoagulation guidelines (hematology.org) Immunologic antiviral therapy with omalizumab (OFID) Abatacept pharmacokinetics and exposure response (JAMA Network Open) Long COVID evidence based review TWiV shout out (TWiV 1088) Gut microbiome and post-acute COVID-19 syndrome, ugh? (Cell Host and Microbe) Pulmonary long COVID (JCI Insight) Neurofilament light chain in long COVID019 neurocognitive symptoms (Molecular Psychiatry) Contribute to our Floating Doctors fundraiser Letters read on TWiV 1110 Dr. Griffin's COVID treatment summary (pdf) Timestamps by Jolene. Thanks! Intro music is by Ronald Jenkees Send your questions for Dr. Griffin to daniel@microbe.tv


