Nation US has ‘tools’ to combat omicron variant; FDA experts give OK to antiviral pill; judge blocks vaccine mandate: Latest COVID-19 updates November 30, 2021November 30, 2021Celina Tebor, Ryan W. Miller and Jorge L. Ortiz, USA TODAYComments Off on US has ‘tools’ to combat omicron variant; FDA experts give OK to antiviral pill; judge blocks vaccine mandate: Latest COVID-19 updates It remains unclear exactly how transmissible or severe an omicron infection is, but WHO says early evidence raises concerns. Latest COVID news.