Department of Wildlife, Fish, & Conservation Biology, University of California, Davis, California.
Published: November 2018
AI Article Synopsis
Article Abstract
Preferred water temperatures and acute temperature tolerance limits of two salmonids in California were assessed: juvenile Chinook salmon Oncorhynchus tshawytscha, a native anadromous species, and sub-adult brook trout Salvelinus fontinalis, an introduced game species. These two species preferred similar temperatures across an 18 h temperature preference experiment and showed similar critical thermal tolerance limits, suggesting a substantial thermal habitat overlap in the wild.
Over a decade since its discovery, piscine myocarditis virus (PMCV) remains a significant pathogen in Atlantic salmon aquaculture. Despite this significant impact, the genomic landscape, evolutionary dynamics, and virulence factors of PMCV are poorly understood. This study enhances the existing PMCV sequence dataset by adding 34 genome sequences and 202 new ORF3 sequences from clinical cardiomyopathy syndrome (CMS) cases in Norwegian aquaculture.
Adult-onset Still's disease (AOSD) is a rare autoinflammatory systemic disorder classically characterised by inflammatory polyarthritis, daily fevers and a transient asymptomatic salmon-pink maculopapular rash that typically arises with the onset of fevers. We report a case of AOSD presenting with a severely pruritic urticarial eruption starting 6 weeks prior to the onset of fever and arthritis and complicated by macrophage activation syndrome. This case highlights the importance of early recognition of diverse cutaneous manifestations of AOSD to facilitate timely diagnosis and treatment to improve disease outcomes.
Adult-onset Still's disease (AOSD) is an uncommon systemic inflammatory disorder that presents with diverse, overlapping symptoms, complicating the diagnostic process due to its nonspecific clinical features and the absence of a definitive diagnostic test. Diagnosis is often challenging and relies on excluding other conditions while maintaining a high index of suspicion, supported by specific diagnostic criteria such as Yamaguchi or Fautrel. Prompt recognition and a multidisciplinary approach are essential, as AOSD can progress to life-threatening multiorgan dysfunction due to a hyperinflammatory response.
Maternal gut microbiota composition contributes to the status of the neonatal immune system and could influence the early life higher susceptibility to viral respiratory infections. Using a novel protocol of murine maternal probiotic supplementation, we report that perinatal exposure to () or () increases the influenza A/PR8 virus (IAV) clearance in neonates. Following either supplementation, type 1 conventional dendritic cells (cDC1) were amplified in the lymph nodes leading to an enhanced IAV antigen-experienced IFN-γ producing effector CD8 T cells in neonates and IAV-specific resident memory CD8 T cells in adulthood.
