The TWiVotopes review current evidence which does not show the need for widespread COVID-19 booster vaccination, and results of experiments to examine the replication and immune evasion of the SARS-CoV-2 delta variant. post
The TWiP quadfecta solves the case of the Traveler With Watery Diarrhea, and reveals that a heat-shock response regulated by a transcription factor protects human malaria parasites from the high temperatures of fever. post
Tim Hand joins Immune to discuss the work from his laboratory showing that environmental enteric dysfunction, a disease caused by chronic malnutrition and infection, and which is associated with reduced growth and oral vaccine failure, is controlled by an increase in intestinal regulatory T cells. post
Virus hunter Mya Breitbart joins TWiV to describe her laboratory's work on viruses in spiders, insects, millipedes, freshwater springs, seawater, plants, human feces and much more. post
In COVID-19 clinical update #79, Daniel Griffin discusses clinical management guidelines, ER visits and hospitalization among children, infection and vaccine induced seroprevalence in the US, antibodies in Kenyan blood donors, infections after vaccination, anticoagulation for thromboprophylaxis, baracitinib efficacy, long-term symptoms in adults, and sustained symptoms after severe disease. post
On this episode, an electrochemical scaffold that delivers safe doses of hypochlorous acid to treat wound infections in humans, and a method for sampling and monitoring bacteria and viruses on surfaces using plain paper stickers. post
Shane Crotty returns to TWiV to review the immunology of COVID-19, including differences between infection and vaccination, increased breadth of antibodies after infection followed by vaccination, the roles of T cells, and whether booster vaccinations are needed. post
TWiM reveals how temporal shifts in antibiotic resistance elements govern phage-pathogen conflicts, and the intracellular localization of toxin-antitoxin proteins in E. coli. post
TWiN explores a study of hallucination-like perception in mice which supports the idea that hallucinations arise as faulty perceptual inferences due to elevated dopamine in the striatum. post
The immune professors discuss neutrophil extracellular traps, and how IgA-virus immune complexes potentiate this process through Fc receptors on neutrophils. post
TWiP solves the case of the Adventurous Eater with Areas of Swelling, and discusses an experimental Trypanosoma vivax vaccine comprising an invariant flagellum antigen. post
Mark Martin returns to TWiM to discuss ways to increase diversity in our field, and the discovery of Borgs, giant extrachromosomal elements with the potential to augment methane oxidation. post
TWiM explores whether ‘rewilding’ is a way to get back our missing gut microbes, and failure of bacteriophage therapy due to the production of neutralizing antibodies. post
Immune explore the observation that bat cells display dampened STING-dependent interferon activation, suggesting why bats might have a unique capacity to harbor many viruses. post
While perceptual constancy requires the brain to maintain a stable representation of sensory input, TWiN explores a study showing that odor-evoked responses in the olfactory cortex drift over periods of days to weeks. post
Nels and Vincent discuss the identification of novel bat coronaviruses that shed light on the evolution of SARS-CoV-2, dating the first cases of COVID-19 to mid-November 2019, and recovery of deleted genome sequences from early in the Wuhan outbreak. post
On this episode, Vivianne gives a primer on glial cells, with the goal of thinking about the central nervous system holistically and appreciating the different cell types that contribute to its function. post
On this episode of Immune, we answer listener questions about CAR-Macs, complement and COVID-19, sleep and the immune system, caving and the immune system, germinal centers, COVID-19 vaccines and much more. post
Christina returns to the TWiP trifecta to solve the case of the Beachgoer with Red Lines on Her foot, and an experimental malaria vaccine based on the junctional region of the circumsporozoite protein displayed on a virus-like particle. post
Nels and Vincent explain a new method for calculating the most recent common ancestor of SARS-CoV-2, which concludes that the ancestral virus was circulating in October/November 2019, before its first detection in China. post
Mauro Costa-Mattioli joins TWiN to discuss how his laboratory dissects the contribution of host genetics and the microbiome in complex neurodevelopment disorders such as autism spectrum disorders. post
Daniel joins Dickson and Vincent to talk about the Vertical Farm Institute, which provides advice and planning on the design and construction of indoor farms. post
In this episode of Virus Watch, we explore the finding that Zika virus infects the testis of mice, causing damage to the organ, reduced sperm production, and less fertility. The important question: does the same happen in humans? post
Dickson and Vincent speak with Robert Colangelo, founding farmer and CEO of Green Sense Farms, the world's largest commercial indoor vertical farm. post
