Objective To characterize the immunologic mechanisms underlying allergic reactions to these vaccines. Design, Setting, and Participants This case series included 22 patients with suspected allergic reactions to mRNA COVID-19 vaccines between December 18, 2020, and January 27, 2021, at a large regional health care network. Participants were individuals who received at least 1 of the… Continue reading Assessment of #Allergic and #Anaphylactic Reactions to mRNA #COVID-19 Vaccines With Confirmatory Testing in a US Regional Health System
Category: Infectivology
Adenoviral Vector DNA- and #SARS-CoV-2 mRNA-Based Covid-19 Vaccines: Possible Integration into the Human #Genome – Are Adenoviral Genes Expressed in Vector-based Vaccines?
This brief review was presented here to facilitate an independent and more balanced discussion on the potential risks due to the presence of adenovirus vector DNA (AstraZeneca, Johnson & Johnson, Sputnik V and others) or SARS-CoV-2 RNA (BioNTech/Pfizer, Moderna) in vaccines that are supposed to protect against Covid-19. Of course, injections of vector-based vaccines into… Continue reading Adenoviral Vector DNA- and #SARS-CoV-2 mRNA-Based Covid-19 Vaccines: Possible Integration into the Human #Genome – Are Adenoviral Genes Expressed in Vector-based Vaccines?
BNT162b2 vaccine breakthrough: clinical characteristics of 152 fully #vaccinated hospitalized #COVID-19 patients in Israel
The mRNA coronavirus disease 2019 (COVID-19) vaccines have shown high effectiveness in the prevention of symptomatic COVID-19, hospitalization, severe disease and death. Nevertheless, a minority of vaccinated individuals might become infected and experience significant morbidity. Characteristics of vaccine breakthrough infections have not been studied. We sought to portray the population of Israeli patients, who were… Continue reading BNT162b2 vaccine breakthrough: clinical characteristics of 152 fully #vaccinated hospitalized #COVID-19 patients in Israel
Considerations in boosting #COVID-19 #vaccine immune responses
A new wave of COVID-19 cases caused by the highly transmissible delta variant is exacerbating the worldwide public health crisis, and has led to consideration of the potential need for, and optimal timing of, booster doses for vaccinated populations.1 Although the idea of further reducing the number of COVID-19 cases by enhancing immunity in vaccinated… Continue reading Considerations in boosting #COVID-19 #vaccine immune responses
#Coronavirus induces #diabetic macrophage-mediated inflammation via SETDB2
COVID-19 induces a robust, extended inflammatory “cytokine storm” that contributes to an increased morbidity and mortality, particularly in patients with type 2 diabetes (T2D). Macrophages are a key innate immune cell population responsible for the cytokine storm that has been shown, in T2D, to promote excess inflammation in response to infection. Using peripheral monocytes and… Continue reading #Coronavirus induces #diabetic macrophage-mediated inflammation via SETDB2
#Probenecid inhibits #SARS-CoV-2 replication in vivo and in vitro
Effective vaccines are slowing the COVID-19 pandemic, but SARS-CoV-2 will likely remain an issue in the future making it important to have therapeutics to treat patients. There are few options for treating patients with COVID-19. We show probenecid potently blocks SARS-CoV-2 replication in mammalian cells and virus replication in a hamster model. Furthermore, we demonstrate… Continue reading #Probenecid inhibits #SARS-CoV-2 replication in vivo and in vitro
#Metoprolol in Critically Ill Patients With COVID-19
Severe coronavirus disease-2019 (COVID-19) can progress to an acute respiratory distress syndrome (ARDS), which involves alveolar infiltration by activated neutrophils. The beta-blocker metoprolol has been shown to ameliorate exacerbated inflammation in the myocardial infarction setting. ObjectivesThe purpose of this study was to evaluate the effects of metoprolol on alveolar inflammation and on respiratory function in… Continue reading #Metoprolol in Critically Ill Patients With COVID-19
#Ivermectin for Prevention and Treatment of #COVID-19Infection: A Systematic Review, Meta-analysis, and TrialSequential Analysis to Inform Clinical Guidelines
Background: Repurposed medicines may have a role against the SARS-CoV-2 virus. The antiparasiticivermectin, with antiviral and anti-inflammatory properties, has now been tested in numerous clinical trials. Areas of uncertainty: We assessed the efficacy of ivermectin treatment in reducing mortality, in secondary outcomes, and in chemoprophylaxis, among people with, or at high risk of, COVID-19 infection.… Continue reading #Ivermectin for Prevention and Treatment of #COVID-19Infection: A Systematic Review, Meta-analysis, and TrialSequential Analysis to Inform Clinical Guidelines
#COVID-19 Transmission Dynamics Among Close #Contacts of Index Patients With COVID-19A Population-Based Cohort Study in Zhejiang Province, China
Much remains unknown about the transmission dynamics of COVID-19. How the severity of the index case and timing of exposure is associated with disease in close contacts of index patients with COVID-19 and clinical presentation in those developing disease is not well elucidated. Objectives To investigate the association between the timing of exposure and development… Continue reading #COVID-19 Transmission Dynamics Among Close #Contacts of Index Patients With COVID-19A Population-Based Cohort Study in Zhejiang Province, China
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