“A pair of new Omicron subvariants has emerged, raising the possibility that survivors of earlier Omicron strains can get reinfected,” the South China Morning Post reports.
Said Dr. Peter Chin-Hong: “It really came out of the blue over the weekend. We were already settling down with BA.2.12.1, and then BA.
4 and BA.5? It just seems like the latest chapter of a never-ending saga.”Eric Topol: Covid vaccines need to be evolving much faster.