Europe: BA.4 and BA.5 reclassified as Variants of Concern

BA.4, BA.5, Coronavirus, Europe, Genome, Health, Infection, Omicron, Reinfection, Testing, Transmission, Variants

The European Centre for Disease Prevention and Control has issued an Epidemiological update on 13th May 2022.  BA.4 and BA.5 have been reclassified as Variants of Concern.

The ECDC seem to have been spooked by the latest figures for BA.5 from Portugal which have reached 37% of  sequences in the past week. The ECDC estimates that BA.5 will become the dominant variant in Portugal within TEN DAYS.

This is the first upgrade of a variant of interest to a variant of concern since the original Omicron variant B.1.1.529 was reclassified on 26th November 2021.


ECDC: Epidemiological update: SARS-CoV-2 Omicron sub-lineages BA.4 and BA.5




H/t @Gab_H_R


West European summer Covid wave brewing *2 updates, 1 prediction*




Image by Christine Sponchia from Pixabay