By Dr. Sanchari Sinha Dutta, Ph.D.Reviewed by Danielle Ellis, B.Sc. Serum samples obtained from the recipients of the BriLife® coronavirus disease 2019 (COVID-19) vaccine candidate have shown high potency in neutralizing the alpha, beta, gamma, and delta variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Study: Neutralization of SARS-CoV-2 variants by rVSV-ΔG-spike-elicited human sera. Image Credit:...
By Jocelyn Solis-Moreira Aug 18 2021 All COVID-19 vaccines appear less effective when faced with variants such as Delta, according to a new medRxiv* study. However, the researchers suggest that booster shots may help improve immunity and protect against symptomatic severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. The study authors write: “Modelling of predicted vaccine efficacy against variants over...
By Dr. Tomislav Meštrović, MD, Ph.D. Apr 12 2021 A new study by Israeli researchers tested the hypothesis that certain SARS-CoV-2 variants of concern can overcome protection conferred by Pfizer-BioNTech (BNT162b2) mRNA vaccine and found evidence of increased breakthrough rates in vaccinated individuals. The research paper is currently available on the medRxiv*preprint server. Study: Evidence for increased breakthrough rates of SARS-CoV-2...
