Vaccines based on the replication-deficient simian adenoviral vector ChAdOx1: Standardized template with key considerations for a risk/benefit assessment

Di |2022-06-17T13:00:00+02:00Giugno 17th, 2022|Categorie: Coronavirus PubMed|

Replication-deficient adenoviral vectors have been under investigation as a platform technology for vaccine development for several years and have recently been successfully deployed as an effective COVID-19 counter measure. A replication-deficient adenoviral vector based on the simian adenovirus type Y25 and named ChAdOx1 has been evaluated in several clinical trials since 2012. The Brighton Collaboration Benefit-Risk Assessment of VAccines by TechnolOgy (BRAVATO) was formed to evaluate the...

Symptomatic, clinical and biomarker associations for mortality in hospitalized COVID-19 patients enriched for African Americans

Di |2022-06-17T13:00:00+02:00Giugno 17th, 2022|Categorie: Coronavirus PubMed|

CONCLUSION: Among this large cohort of hospitalized COVID-19 patients enriched for African Americans, our study findings may reflect the extent of systemic organ involvement by SARS-CoV-2 and subsequent progression to multi-system organ failure. High mortality in AA in comparison with LAT is likely related to high frequency of comorbidities and older age among AA. Glucocorticoids should be used carefully considering the poor outcomes associated with it. Special focus in treating patients with...

BA.2.12.1, BA.4 and BA.5 escape antibodies elicited by Omicron infection

Di |2022-06-17T13:00:00+02:00Giugno 17th, 2022|Categorie: Coronavirus PubMed|

SARS-CoV-2 Omicron sublineages BA.2.12.1, BA.4 and BA.5 exhibit higher transmissibility over BA.2¹. The new variants' receptor binding and immune evasion capability require immediate investigation. Here, coupled with Spike structural comparisons, we show that BA.2.12.1 and BA.4/BA.5 exhibit comparable ACE2-binding affinities to BA.2. Importantly, BA.2.12.1 and BA.4/BA.5 display stronger neutralization evasion than BA.2 against the plasma from 3-dose vaccination and, most strikingly, from...

A Brighton Collaboration standardized template with key considerations for a benefit/risk assessment for an inactivated viral vaccine against Chikungunya virus

Di |2022-06-17T13:00:00+02:00Giugno 17th, 2022|Categorie: Coronavirus PubMed|

Inactivated viral vaccines have long been used in humans for diseases of global health threat (e.g., poliomyelitis and pandemic and seasonal influenza) and the technology of inactivation has more recently been used for emerging diseases such as West Nile, Chikungunya, Ross River, SARS and especially for COVID-19. The Brighton Collaboration Benefit-Risk Assessment of VAccines by TechnolOgy (BRAVATO) Working Group has prepared standardized templates to describe the key considerations for the...

Symptomatic, clinical and biomarker associations for mortality in hospitalized COVID-19 patients enriched for African Americans

Di |2022-06-17T13:00:00+02:00Giugno 17th, 2022|Categorie: Coronavirus PubMed|

CONCLUSION: Among this large cohort of hospitalized COVID-19 patients enriched for African Americans, our study findings may reflect the extent of systemic organ involvement by SARS-CoV-2 and subsequent progression to multi-system organ failure. High mortality in AA in comparison with LAT is likely related to high frequency of comorbidities and older age among AA. Glucocorticoids should be used carefully considering the poor outcomes associated with it. Special focus in treating patients with...

BA.2.12.1, BA.4 and BA.5 escape antibodies elicited by Omicron infection

Di |2022-06-17T13:00:00+02:00Giugno 17th, 2022|Categorie: Coronavirus PubMed|

SARS-CoV-2 Omicron sublineages BA.2.12.1, BA.4 and BA.5 exhibit higher transmissibility over BA.2¹. The new variants' receptor binding and immune evasion capability require immediate investigation. Here, coupled with Spike structural comparisons, we show that BA.2.12.1 and BA.4/BA.5 exhibit comparable ACE2-binding affinities to BA.2. Importantly, BA.2.12.1 and BA.4/BA.5 display stronger neutralization evasion than BA.2 against the plasma from 3-dose vaccination and, most strikingly, from...

Association between economic wellbeing and ethnicity, socioeconomic status, and remoteness during the COVID-19 pandemic

Di |2022-06-17T13:00:00+02:00Giugno 17th, 2022|Categorie: Coronavirus PubMed|

CONCLUSIONS: The economic wellbeing of people who identify as Aboriginal and Torres Strait Islander, live in regional or remote areas, and reside in low socioeconomic areas have been substantially impacted during the pandemic. Findings call for policies to address the underlying social determinants of health.

Evaluation of an experiential clinical learning option during pandemic teaching suspensions

Di |2022-06-17T13:00:00+02:00Giugno 17th, 2022|Categorie: Coronavirus PubMed|

CONCLUSIONS: Remote learning allowed our program to connect trainees to the multidisciplinary field of addiction medicine despite the COVID-19 pandemic. In future program iterations, we will consider hybrid formats of in-person learning experiences with direct patient and faculty contact where possible, combined with online provider and patient panels possibly, in addition to virtual breakout formats to facilitate more personal student-patient and student-faculty interactions.

A diminished immune response underlies age-related SARS-CoV-2 pathologies

Di |2022-06-17T13:00:00+02:00Giugno 17th, 2022|Categorie: Coronavirus PubMed|

Morbidity and mortality in response to SARS-CoV-2 infection are significantly elevated in people of advanced age. To understand the underlying biology of this phenotype, we utilize the golden hamster model to compare how the innate and adaptive immune responses to SARS-CoV-2 infection differed between younger and older animals. We find that while both hamster cohorts showed similar virus kinetics in the lungs, the host response in older animals was dampened, with diminished tissue repair in the...

Redefining critical illness

Di |2022-06-17T13:00:00+02:00Giugno 17th, 2022|Categorie: Coronavirus PubMed|

Research and practice in critical care medicine have long been defined by syndromes, which, despite being clinically recognizable entities, are, in fact, loose amalgams of heterogeneous states that may respond differently to therapy. Mounting translational evidence-supported by research on respiratory failure due to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection-suggests that the current syndrome-based framework of critical illness should be reconsidered. Here we discuss...

Safety of COVID-19 vaccination and acute neurological events: A self-controlled case series in England using the OpenSAFELY platform

Di |2022-06-17T13:00:00+02:00Giugno 17th, 2022|Categorie: Coronavirus PubMed|

CONCLUSIONS: COVID-19 vaccines save lives, but it is important to understand rare adverse events. We observed a short-term increased rate of Guillain-Barré syndrome and Bell's palsy after first dose of ChAdOx1 vaccine. The absolute risk, assuming a causal effect attributable to vaccination, was low.

Evaluation of an experiential clinical learning option during pandemic teaching suspensions

Di |2022-06-17T13:00:00+02:00Giugno 17th, 2022|Categorie: Coronavirus PubMed|

CONCLUSIONS: Remote learning allowed our program to connect trainees to the multidisciplinary field of addiction medicine despite the COVID-19 pandemic. In future program iterations, we will consider hybrid formats of in-person learning experiences with direct patient and faculty contact where possible, combined with online provider and patient panels possibly, in addition to virtual breakout formats to facilitate more personal student-patient and student-faculty interactions.

A diminished immune response underlies age-related SARS-CoV-2 pathologies

Di |2022-06-17T13:00:00+02:00Giugno 17th, 2022|Categorie: Coronavirus PubMed|

Morbidity and mortality in response to SARS-CoV-2 infection are significantly elevated in people of advanced age. To understand the underlying biology of this phenotype, we utilize the golden hamster model to compare how the innate and adaptive immune responses to SARS-CoV-2 infection differed between younger and older animals. We find that while both hamster cohorts showed similar virus kinetics in the lungs, the host response in older animals was dampened, with diminished tissue repair in the...

Redefining critical illness

Di |2022-06-17T13:00:00+02:00Giugno 17th, 2022|Categorie: Coronavirus PubMed|

Research and practice in critical care medicine have long been defined by syndromes, which, despite being clinically recognizable entities, are, in fact, loose amalgams of heterogeneous states that may respond differently to therapy. Mounting translational evidence-supported by research on respiratory failure due to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection-suggests that the current syndrome-based framework of critical illness should be reconsidered. Here we discuss...

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