The Omicron, or Pango lineage B.1.1.529, variant of SARS-CoV-2 carries multiple spike mutations with high transmissibility and partial neutralizing antibody (nAb) escape. Vaccinated individuals show protection from severe disease, often attributed to primed cellular immunity. We investigated T and B cell immunity against B.1.1.529 in triple mRNA vaccinated healthcare workers (HCW) with different SARS-CoV-2 infection… Continue reading Immune boosting by B.1.1.529 (Omicron) depends on previous SARS-CoV-2 exposure
Tag: Vaccines
Creutzfeldt-Jakob Disease After the COVID-19Vaccination
Reports of neurological problems are increasing for the clinical presentation of COVID-19 The clinical presentation reported in this study seemed to be a combination of nonspecificcomplications of the systemic disease, inflammation of the cerebrovascular system, and theeffects of a direct viral infection. Creutzfeldt–Jakob disease, a spongiform encephalopathycaused by prions, is characterized by a severe neurological… Continue reading Creutzfeldt-Jakob Disease After the COVID-19Vaccination
Intramyocardial Inflammation after COVID-19 Vaccination: An Endomyocardial Biopsy-Proven Case Series
Myocarditis in response to COVID-19 vaccination has been reported since early 2021. In particular, young male individuals have been identified to exhibit an increased risk of myocardial inflammation following the administration of mRNA-based vaccines. Even though the first epidemiological analyses and numerous case reports investigated potential relationships, endomyocardial biopsy (EMB)-proven cases are limited. Here, we… Continue reading Intramyocardial Inflammation after COVID-19 Vaccination: An Endomyocardial Biopsy-Proven Case Series
Age and sex-specific risks of myocarditis and pericarditis following Covid-19 messenger RNA vaccines
Cases of myocarditis and pericarditis have been reported following the receipt of Covid-19 mRNA vaccines. As vaccination campaigns are still to be extended, we aimed to provide a comprehensive assessment of the association, by vaccine and across sex and age groups. Using nationwide hospital discharge and vaccine data, we analysed all 1612 cases of myocarditis… Continue reading Age and sex-specific risks of myocarditis and pericarditis following Covid-19 messenger RNA vaccines
Covid-19 vaccination BNT162b2 temporarily impairs semen concentration and total motile count among semen donors
AbstractBackgroundThe development of covid-19 vaccinations represents a notable scientific achievement. Nevertheless, concerns have been raised regarding their possible detrimental impact on male fertility ObjectiveTo investigate the effect of covid-19 BNT162b2 (Pfizer) vaccine on semen parameters among semen donors (SD). Methods37 SD from three sperm banks that provided 220 samples, were included in that retrospective longitudinal… Continue reading Covid-19 vaccination BNT162b2 temporarily impairs semen concentration and total motile count among semen donors
Researcher: ‘We Made a Big Mistake’ on COVID-19 Vaccine
Canadian immunologist and vaccine researcher Byram Bridle, Ph.D., has gained access to Pfizer’s biodistribution study from the Japanese regulatory agency. The research demonstrates a huge problem with all COVID-19 vaccines The assumption that vaccine developers have been working with is that the mRNA in the vaccines would primarily remain in and around the vaccination site.… Continue reading Researcher: ‘We Made a Big Mistake’ on COVID-19 Vaccine
Adverse effects of COVID-19 vaccines and measures to prevent them
Recently, The Lancet published a study on the effectiveness of COVID-19 vaccines and the waning of immunity with time. The study showed that immune function among vaccinated individuals 8 months after the administration of two doses of COVID-19 vaccine was lower than that among the unvaccinated individuals. According to European Medicines Agency recommendations, frequent COVID-19… Continue reading Adverse effects of COVID-19 vaccines and measures to prevent them
1,287,595 Injuries Reported After COVID Shots, Vaccine Injury Compensation Programs ‘Overwhelmed’
The Centers for Disease Control and Prevention (CDC) today released new data showing a total of 1,287,595 reports of adverse events following COVID-19 vaccines were submitted between Dec. 14, 2020, and May 27, 2022, to the Vaccine Adverse Event Reporting System (VAERS). That’s an increase of 9,615 adverse events over the previous week. VAERS is… Continue reading 1,287,595 Injuries Reported After COVID Shots, Vaccine Injury Compensation Programs ‘Overwhelmed’
Increases in COVID-19 are unrelated to levels of vaccination across 68 countries and 2947 counties in the United States
Vaccines currently are the primary mitigation strategy to combat COVID-19 around the world. For instance, the narrative related to the ongoing surge of new cases in the United States (US) is argued to be driven by areas with low vaccination rates [1]. A similar narrative also has been observed in countries, such as Germany and… Continue reading Increases in COVID-19 are unrelated to levels of vaccination across 68 countries and 2947 counties in the United States
2 Medical News 