The first dominant SARS‐CoV‐2 Omicron variant BA. 1 harbours 35 mutations in its Spike
protein from the original SARS‐CoV‐2 variant that emerged late 2019. Soon after its …

Importance Estimates of the rate of waning of vaccine effectiveness (VE) against COVID-19
are key to assess population levels of protection and future needs for booster doses to face …

Omicron Neutralization after Bivalent Vaccine Boost One or two monovalent vaccine
boosters showed a large decrease in neutralization activity against omicron subvariants …

Immunogenicity of BA.5 Bivalent mRNA Vaccine Boosters | NEJM Skip to main content NEJM
Group Follow Us Facebook Twitter Instagram YouTube LinkedIn Prepare to become a …

Antibody Response to Omicron BA.4–BA.5 Bivalent Booster | NEJM Skip to main content NEJM
Group Follow Us Facebook Twitter Instagram YouTube LinkedIn Prepare to become a …

Background The emergence of immune-escape variants of severe acute respiratory
syndrome coronavirus 2 warrants the use of sequence-adapted vaccines to provide …

The emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants
in the Omicron lineage has resulted in diminished Coronavirus Disease 2019 (COVID-19) …

Early Estimates of Bivalent mRNA Vaccine Effectiveness in Preventing COVID-19–Associated
Emergency Department or Urgent Care Encounters and Hospitalizations Among …

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron sublineages carry
distinct spike mutations resulting in escape from antibodies induced by previous infection or …

The COVID-19 pandemic has created significant concern for everyone. Recent data from
many worldwide reports suggest that most infections are caused by the Omicron variant and …