

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

Jul 21, 2024 • 1h 59min
TWiV 1133: Gain of function makes us safer
TWiV discusses cases of measles in Brooklyn and Washington DC, global childhood vaccination challenges, H5N1 vaccines protection, viruses traveling without passports, replacing SARS-CoV-2 spike virus for neutralization assays, and functional constraints of Lassa virus glycoprotein. They also touch on Mars sulfur discovery, influenza meeting, pandemic preparedness, challenges with PCR testing, immune response to vaccines, viral evolution impact on antibody design, sailing adventure in 1912, past flu strain immunity, origins of COVID virus, coal production health risks, and exploitation of systems.

Jul 20, 2024 • 41min
TWiV 1132: Clinical update with Dr. Daniel Griffin
Dr. Daniel Griffin covers Biden's COVID case, nirmatrelvir-ritonavir for prophylaxis, Pemgarda availability, treatment efficacy, Long COVID risk, antivirals' impact, diet-gut microbiome connection in COVID-19 patients, and more. Plus, recommendations on immediate treatment, dietary impact on long COVID, and prophylactic antibiotics for a child with asthma and IgA deficiency.

Jul 14, 2024 • 1h 42min
TWiV 1131: Mootant influenza H5N1 virus
TWiV reviews the potential impact on science of the Supreme Court ruling in the Chevron decision, measles in New Hampshire and Vermont, new who proposed terminology for respiratory pathogen transmission, and pathogenicity and transmission of bovine H5N1 influenza virus. Hosts: Vincent Racaniello, Dickson Despommier, and Rich Condit Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Become a patron of TWiV! Links for this episode MicrobeTV Discord Server Articles on Chevron decision (one, two, three) Measles in New Hampshire and Vermont (NH DHHS) Pathogenicity and transmission of bovine H5N1 virus (Nature) Letters read on TWiV 1131 Timestamps by Jolene. Thanks! Weekly Picks Dickson – Stockholm Wood City Rich – “The Wide Wide Sea” by Hampton Sides Vincent – Tour de France stage 12 Listener Picks Amy – Earth Forced from the Protective Heliosphere: What Do We know? 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.

Jul 13, 2024 • 41min
TWiV 1130: Clinical update with Dr. Daniel Griffin
In his weekly clinical update, Dr. Griffin discusses H5N1 influenza in the bird and cow communities of Colorado and Michigan and dengue in New York and the US before reviewing the recent statistics on SARS-CoV-2 infection, the absence of association with proton pump inhibitors and COVID-19 severity in children, where to find PEMGARDA, the effectiveness of molnupiravir and dexamethasone, convalescent plasma, what to do when healthcare workers succumb to SARS-CoV-2 infection, a resource of long COVID answers, how the WHO and CDC define long COVID and how it compares to ME/CSF. Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Become a patron of TWiV! Links for this episode H5N1: birds and cows oh, my…..Michigan and Colorado (CIDRAP) Flu pandemic for the Colorado chicken (Colorado Sun) It’s a disaster: Avian flu in Weld county (Colorado.gov) More 9.7 million dengue cases in US this year: CDC issues warning (Patch.com) Long Island has DENGUE! (Long Island News12) COVID-19 national trend (CDC) COVID-19 deaths (CDC) Association between proton pump inhibitors and COVID-19 susceptibility or severity in children? (Journal of Pediatrics) Where to get pemgarda (Pemgarda) Unable to access pemgarda, gottacall Daniel (microbeTV) 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 (ID Society) Drug interaction checker (University of Liverpool) Molnupiravir safety and efficacy (JMV) Convalescent plasma recommendation for immunocompromised (ID Society) 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) Benefits of desamethasone, reversal of monocyte dysfunction for severe COVID-19 (Cell) Anticoagulation guidelines (hematology.org) Long COVID: the ANSWERS! (longcovidtheanswers.com) The FACTS: post COVID-19=long COVID? (WHO) The BASICS of long COVID-19 (CDC) Beyond Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: Redefining an Illness (CDC) Contribute to our Floating Doctors fundraiser Letters read on TWiV 1130 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

Jul 7, 2024 • 1h 44min
TWiV 1129: You never forget the first time you flu
TWiV reviews measles in Kenya, a trial for a intranasal COVID vaccine, dengue in the Florida Keys and in Central/South America, Spain connecting government with scientists, T cell activation and viral RNA fragments persist for up to 2 years after SARS-CoV-2 infection, and durable cross-reactive and protective antibodies against avian N2 neuraminidases elicited by A(H2N2) and A(H3N2) influenza pandemics. Hosts: Vincent Racaniello and Alan Dove Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Become a patron of TWiV! Links for this episode MicrobeTV Discord Server Measles in Kenya (WHO) Intranasal COVID vaccine trial (NIH) Dengue in Florida Keys (Florida Health) Dengue rising in Central/South America (NPR) Spain to connect scientists with government (Science) Persistence of T cells and viral RNA after SARS-CoV-2 infection (Sci Transl Med) Influenza pandemics induce cross-reactive antibodies against avian N2 (Nat Comm) Letters read on TWiV 1129 Timestamps by Jolene. Thanks! Weekly Picks Alan – The first few minutes of this video by Roger Barnes Vincent – Billy & Molly: An Otter Love Story Listener Picks Fernando – A City on Mars Intro music is by Ronald Jenkees Send your virology questions and comments to twiv@microbe.tv

Jul 6, 2024 • 38min
TWiV 1128: Clinical update with Dr. Daniel Griffin
In his weekly clinical update, Dr. Griffin discusses the fourth US case of H5N1 human infection and reminds the audience of the definition of “pasteurization” before reviewing the recent statistics on SARS-CoV-2 infection, where to find PEMGARDA, the effectiveness of molnupiravir and dexamethasone, convalescent plasma, what to do when healthcare workers succumb to SARS-CoV-2 infection, how an EEG can be used to look for signatures of cognitive decline after SARS-CoV-2 infection and what we observed 2 years following SARS-CoV-2 infection for tissue-resident T cell and viral RNA persistence. Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Become a patron of TWiV! Links for this episode Fourth case human infection associated with an ongoing multistate outbreak of A(H5N1) (CDC) Human H5N1 in Colorado and thedefinition of pasteurization (CIDRAP) Is “raw” milk more risky than pasteurized (Annenberg Public Policy Center) COVID-19 national trend (CDC) COVID-19 deaths (CDC) Winter, spring, summer and fall COVID-19 surges? (CDC) Where to get pemgarda (Pemgarda) Unable to access Pemgarda, gotta call Daniel (microbeTV) 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 (ID Society) Drug interaction checker (University of Liverpool) Molnupiravir safety and efficacy (JMV) Molunpiravir works: reduces hospitalizations and deaths due to COVID-19 and all-cause mortality (CID) Convalescent plasma recommendation for immunocompromised (ID Society) 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) Benefits of dexamethasone, reversal of monocyte dysfunction for severe COVID-19 (Cell) Anticoagulation guidelines (hematology.org) EEG signatures for cognitive decline after SARS-CoV-2 infection (BMC Medicine) Tissue resident T-cells and viral RNA 2 years after SARS-CoV-2 infection (Science Translational Medicine) Contribute to our Floating Doctors fundraiser Letters read on TWiV 1128 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

Jun 30, 2024 • 1h 53min
TWiV 1127: Giving prions the (zinc) finger
TWiV discusses secret anti-vax campaign run by Pentagon to undermine China during pandemic, NY governor’s subways mask ban proposal, Colorado bat facility sparks outbreak fears, House budget billls suggest ban on gain of function research, evolution of STAT2 resistance to flavivirus NS5, and brainwide silencing of prion protein by AAV-mediated delivery of an epigenetic editor. 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 Pentagan anti-vac campaign to undermine China (Reuters) NY governor subway mask ban (AP News) Colorado bat facility sparks outbreak fears (Science) House NIH budget bans gain of function research (Science) Evolution of STAT2 resistance to flavivirus NS5 (Nat Commun) Brainwide silencing of prion protein by AAV delivered epigenetic editor (Science) Letters read on TWiV 1127 Timestamps by Jolene. Thanks! Weekly Picks Dickson – Mars Odyssey Orbiter is about to make its 100,000th orbit Alan – Local animal shelters and “kitten season.” Vincent – Supreme Court allows cities to ban homeless people sleeping outside, even when shelter space is lacking Listener Picks Blog design – Trump vows to defund schools requiring vaccines for students Jon – Detections of highly pathogenic avian influenza in mammals 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 29, 2024 • 39min
TWiV 1126: Clinical update with Dr. Daniel Griffin
In his weekly clinical update, Dr. Griffin discusses RSV vaccination recommendations and revisions to guidelines before reviewing the recent statistics on SARS-CoV-2 infection, data suggesting that individuals with high HLA-DQA2 expression (MHC class II) are better at preventing the onset of a sustained viral infection, how moderate coffee intake can reduce risk of COVID-19 severity but cannabis use resulted in more severe disease but reduced risk of mortality, where to find PEMGARDA, if statin use prevented severe COVID-19, the benefit of administering nirmatrelvir and ritonavir after 5 days, convalescent plasma, what do when healthcare workers succumb to SARS-CoV-2 infection, if fecal microbiota transplants aid in recovery from COVID-19, and the definition of characteristics and clinical patterns for the diagnosis of long COVID. Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Become a patron of TWiV! Links for this episode CDC ACIP for RSV (CDC) This respiratory virus season everyone age 75 and older receive the RSV vaccine (CDC Newsroom) Revised RSV vaccine recommendations (CIDRAP) COVID-19 national trend (CDC) COVID-19 deaths (CDC) Local and systemic response dynamics to SARS-CoV-2 infection (Nature) Drink more coffee, reduces risk for SARS-C0V-2 infection (Cell & Bioscience) Cannabis, tobacco…smoking in general NOT good for preventing COVID-19 (JAMA Network OPEN) Do older versions of the COVID-19 vaccine still provide any protection (JAMA Internal Medicine) Where to get pemgarda (Pemgarda) 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 (ID Society) Adjuvant statin therapy reduces SARS-CoV-2 mortality (American Journal of Medicine) Nirmatrelvir and ritonavir beyond 5 days of symptom onset improved the multiple organ dysfunction in severe COVID-19 patient (BMC Infectious Disease) Molnupiravir safety and efficacy (JMV) Convalescent plasma recommendation for immunocompromised (ID Society) 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) Faecal microbtiota transplantation cures sleep disturbance in post-acute COVID-19 syndrome (Clinical Gastroenterology and Hepatology) Long COVID defined by patient phenotype (CIDRAP) Three distinct symptom-based post-COVID condition phenotypes (JID) Contribute to our Floating Doctors fundraiser Letters read on TWiV 1126 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

Jun 23, 2024 • 1h 36min
TWiV 1125: Can pig flu viruses go viral?
TWiV reviews criticism of NIAID monkeypox virus experiments by House Republicans, spread of wild poliovirus across Afghanistan and Pakistan, plan to overhaul NIH by House lawmakers, and the potential pandemic risk of circulating swine H1N2 influenza viruses. Hosts: Vincent Racaniello, Dickson Despommier, Brianne Barker, and Angela Mingarelli Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Become a patron of TWiV! Links for this episode MicrobeTV Discord Server 2024 International HBV Meeting House Republicans fault NIH for evasive answers on monkeypox virus study (Science) Report on MPX experiments at NIAID (pdf) Wild poliovirus spreads across Pakistan and Afghanistan (Science) Plan to overhaul NIH (Science) Reforming NIH (pdf) Potential pandemic risk of circulating swine H1N2 influenza viruses (Nat Comm) Timestamps by Jolene. Thanks! Weekly Picks Angela – Staring at the Sun — close-up images from space rewrite solar science Brianne – Water frost detected on Mars Volcanos Dickson – Best view yet of the Crab Nebula Vincent – Will Your Tattoo Give You Cancer: Probably Not…but Maybe? Listener Picks Jessica – Manchurian plague 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 22, 2024 • 40min
TWiV 1124: Clinical update with Dr. Daniel Griffin
In his weekly clinical update, Dr. Griffin reviews the recent statistics on SARS-CoV-2 infection, before discussing methods for sterilizing filtering facepieces, an update to the fall COVID boosters, the emergency use application of a pre-exposure prophylactic and where to find it and drug interaction database, convalescent plasma, the effectiveness of the monoclonal antibody sotrovimab against Omicron variants, what to do when healthcare workers succumb to SARS-CoV-2 infection, the need for better nursing resources, how survivors of COVID-19-associated ARDS exhibited sustained elevation in endothelial dysfunction biomarkers, correlating with the severity of impaired gas exchange, reactivation of latent CMV as a consequence of a SARS-CoV-2 infection, identification of variables that might impact or predict a person’s time to recovery from an acute SARS-CoV-2 infection and if COVID-19 patients really have olfactory dysfunction more often than normally smelling individuals. Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Become a patron of TWiV! Links for this episode COVID-19 national trend (CDC) COVID-19 deaths (CDC) Comparison of methods for sterilizing filtering facepiece respirators (American Journal of Infection Control) Booster update already! KP.2 of JN.1-lineage (FDA) EUA for pemgarda (FDA) Where to get pemgarda (Pemgarda) 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 (ID Society) Drug interaction checker (University of Liverpool) Molnupiravir safety and efficacy (JMV) Convalescent plasma recommendation for immunocompromised (ID Society) Revisiting monoclonal antibody therapy, sotrovimab for treatment during Omicron BA.2 and BA.5 (Infection) What do when your healthcare provider is infected with SARS-CoV-2 (CDC) Managing healthcare staffing shortages (CDC) Steroids,dexamethasone at the right time (OFID) Anticoagulation guidelines (hematology.org) Hospital nurse staffing variation & COVID-19 (International Journal of Nursing Studies) Endothelial dysfunction and persistent inflammation severe post-COVID-19 (BMC Medicine) Prevalence and risk for CMV reaction due to COVID-19 pneumonia (PLoS One) Variables that impact recovery from acute SARS-CoV-2 infetion (JAMA Network Open) Reduced olfactory bulb volume with dysfunction after mild SARS-CoV-2 inction (Scientific Reports) Contribute to our Floating Doctors fundraiser Letters read on TWiV 1124 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