KGO ABC World News Tonight With David Muir December 29, 2021 23:39:00
In the cold, especially the elderly. >> reporter: and the fda now says early data suggest rapid antigen tests still work to detect omicron, but they may have reduced sensitivity. >> we still are encouraging their use. they may not work as well as they had for the delta variant. >> reporter: and tonight, children's hospitals are sounding the alarm about the accelerating covid impact, with pediatric hospitalizations doubling in the last month. >> our most precious commodity in this united states of america is our children. and right now, we're on fire. >> concerns for so many parents. trevor aul...
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