RT @mvankerkhove: To avoid any confusion: @WHO already classifies BA.4 and BA.5 variants of concern under #Omicron.
@WHO @WHO_Europe works daily with @ECDC_EU on many topics including SARS-CoV-2 surveillance, sequencing, virus evolution. Thanks also to our TAG-VE.
https://www.forbes.com/sites/brucelee/2022/05/16/european-cdc-calls-omicron-ba4-ba5-covid-19-variants-of-concern/?sh=fdfeccf24a59
🐦🔗: https://nitter.eu/ECDC_EU/status/1526529037543276544
