"We don’t yet know whether Omicron is associated with more:
-transmission
-severe #COVID19 disease
-risk of reinfections
-risk of evading vaccines.
Scientists at WHO & around the 🌍 are working urgently to answer these questions"-@DrTedros #WHASpecial https://t.co/FDFXHLYyfn

— World Health Organization (WHO) (@WHO) November 29, 2021