Therefore, we collected serum samples from participants who had received three doses of either of the original monovalent mRNA vaccines followed by one dose of a bivalent vaccine targeting BA.4–BA.5 ...
Panel A shows mutations in the SARS-CoV-2 spike protein in omicron subvariants BA.1, BA.2, BA.2.12.1, BA.4–BA.5, and BA.4.6. BA.4 and BA.5 are grouped together because they have identical spike ...
(NEXSTAR) – On Tuesday, the Centers for Disease Control and Prevention added two new subvariants to its online tracker: BA.4 and BA.5. Both are subvariants of the omicron variant of COVID-19, which ...