TWiV reviews the results of serum neutralization assays which show that a third vaccine dose restores neutralization of the Omicron variant, and interaction of platelet factor 4 with the adenovirus capsid, suggesting a mechanism for thrombosis with thrombocytopenia syndrome. post
TWiV provides an update on immunity to Omicron, results of a randomized controlled trial of face masks, and a study of correlates of protection against respiratory syncytial virus infection in the upper and lower respiratory tract of nonhuman primates. post
In COVID-19 clinical update #92, Dr. Griffin reviews emerging data on the Omicron variant, much information about monoclonal antibody treatment, including expansion of EUA for Lilly's cocktail, FDA EUA for pre-exposure prophylaxis, outcomes after treatment, and investigation of subcutaneous or intramuscular administration; effect of adding immunomodulatory agents to usual care on thromboembolic events, and long COVID following infection in previously vaccinated individuals. post
TWiV reviews the impact of vaccination on SARS-CoV-2, the latest information on Omicron, West Nile virus transmission by organ transplantation, and why a 16 week interval between doses of BNT162b2 vaccine is better than a shorter interval. post
The TWiP team solves the case of the Man with a Cat and Ring Enhancing Lesions, and discuss domestic mammals as reservoirs for Leishmania donovani on the Indian subcontinent. post
Ioana and Robert join TWiN to discuss their work demonstrating that rodents acquire maternal behavior by social transmission from an experienced mother to a virgin female how to care for a litter via endogenous oxytocin. post
TWiM reveals a study showing that positive interactions among bacteria are far more common than previously thought, and how acquisition of a single gene enabled Yersinia pestis to expand the range of mammalian hosts that sustain flea-borne plague. post
Immune reviews evidence that toll-like receptor 9 on the surface of red blood cells binds DNA, leading to uptake by macrophages and innate immune activation. post
Mark Martin returns to TWiM for a discussion of the observation that Gram’s stain does not cross the bacterial cytoplasmic membrane, and suppression of gingival inflammation and bone loss through host modulation caused by episymbiotic Saccharibacteria. post
The TWiP team solves the case of the Gentleman from New York with Intestinal Issues, and review a 20 year study of butterflies, their associated parasitoid wasp and Wolbachia introduced into an island community. post
Bruce Carter joins TWiN to discuss the peripheral nervous system: the development of nerves that convey sensory information like touch from the tips of your toes to the brain, and Schwann cells, which are necessary for ensuring that those sensory signals are sustained as they travel long distances to the brain. post
Petra Levin joins TWiM to tell three stories from her laboratory: how starvation induces shrinkage of the bacterial cytoplasm; plasticity of E. coli cell wall and how it influences antibiotic resistance across different environments; and induction of antibiotic resistance by Triclosan. post
Nels and Vincent discuss evolutionary evidence for an epidemic of coronavirus infection over 20,000 years ago in East Asia, and reconstruction of the membrane differences between bacteria and Archaea reveals unexpected differences in permeability. post
Keke Fairfax joins Immune to discuss the work from her laboratory on understanding how maternal schistosomiasis impairs IL-4 production and B cell expansion in offspring, and modulation of macrophage immunometabolism by helminths. post
The TWiP team solves the case of the Traveler to Tanzania with a Purple Lesion, and discuss Mosquirix, the first vaccine approved for Plasmodium parasites. post
On this episode of TWiM, using colicins to ferry DNA into cells through an iron transporter, and construction of highly efficient microbial fuel cells that produce more electrical current than previously observed. post
TWiN explains how anti-DNA antibodies present in lupus patients bind to GluN2A-containing NMDA receptors, act as positive allosteric modulators, and impair spatial memory. post
Nels and Vincent explain a method to calculate the mutation rate of SARS-CoV-2, and the role of a single amino acid change in spike in enhancing fitness of the delta variant and enabling it to out-compete the alpha 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
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
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
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
