KGO ABC World News Tonight With David Muir March 22, 2022 22:47:00
Hospitalizations in the u.s. are no longer falling. and waste water testing, an early warning system, shows covid-positive samples increased at least 100% last week across 122 sites monitored by the cdc. and with testing sites closing, more americans using at-home kits, and fewer states reporting daily cases, some experts are worried about what we don't know. >> with this lack of data, we're flying blind, and we're at risk of repeating the mistakes of the past, being unprepared for a new surge. and unfortunately, that means unnecessary hospitalizations and deaths. >> reporter: what makes thing...
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