WHO recommends priority actions to WHO Member States to enhance readiness and prepare response to Omicron variant. These include the following:
· Ensure early warning systems are in place
· Ensure mitigation plans are in place to maintain essential health services and necessary health care resources are in place to respond to potential surges
· Regularly communicate evidence-based information on Omicron and other circulating variants
Note that the overall risk related to Omicron is considered very high for a number of reasons. First, the global risk of COVID‐19 remains very high overall, and second, there is concerning preliminary evidence on Omicron suggesting, in contrast to previous VOCs, both potential immune escape and higher transmissibility that could lead to further surges with severe consequences. The evidence for this assessment contains considerable uncertainty and will be updated as more information becomes available.