Effectiveness of Pfizer-BioNTech and Oxford/AstraZeneca Vaccines: Insights from Real-World Data
Large observational study from the United Kingdom demonstrates >60% protection against symptomatic COVID-19 with Pfizer-BioNTech and Oxford/AstraZeneca vaccines 28 days after one dose, supporting the effectiveness of COVID-19 vaccination in reducing disease transmission and severity.
Februery 2022
Post-Pfizer Vaccination Myocarditis in Adolescents: Case Series and Clinical Implications
Seven cases of symptomatic acute myocarditis are reported in adolescents following Pfizer-BioNTech COVID-19 vaccination, raising awareness about potential vaccine-related adverse events and informing ongoing surveillance and monitoring efforts.
January 2022
COVID-19 Vaccination in Breastfeeding Women: Insights from Antibody Secretion in Breast Milk
Breast milk from vaccinated mothers shows strong secretion of SARS-CoV-2-specific IgA and IgG antibodies for up to 6 weeks post-vaccination, supporting the safety and efficacy of COVID-19 vaccination in breastfeeding women and passive immunity transfer to infants.
December 2021
FDA and CDC Pause Use of Johnson & Johnson Vaccine: Safety Concerns
Following reports of rare blood clotting events, the FDA and CDC recommend a pause in the use of the Johnson & Johnson vaccine, highlighting the importance of post-authorization safety monitoring and rapid response to vaccine-related adverse events.
December 2021
Thrombosis Risk in COVID-19 and Vaccination: Comparative Assessment
Comparative analysis reveals a higher risk of thrombosis associated with COVID-19 infection than with COVID-19 vaccines, highlighting the importance of vaccination in mitigating the risk of severe thrombotic events and preventing COVID-19-related complications.
December 2021
AstraZeneca Vaccine: Single Dose Efficacy and Optimal Interval Timing
A single dose of the AstraZeneca vaccine shows 76.0% efficacy for up to 90 days, with delayed booster dose administration at 12 weeks associated with substantially higher efficacy (81.3%), informing vaccination strategies and dose scheduling recommendations.
November 2021
