Top Science and Health Officials Offer Sobering View of Reopening Readiness
Despite progress on a vaccine, there is no guarantee it will be effective, experts said, and testing and contact tracing are still short of the levels needed.
Top Science and Health Officials Offer Sobering View of Reopening Readiness
Despite progress on a vaccine, there is no guarantee it will be effective, experts said, and testing and contact tracing are still short of the levels needed.