‘Strong’ start to kids vaccine campaign, but challenges loom

Shauna Andrus, left, a nurse volunteering at the University of Washington Medical Center, gives the first shot of the Pfizer COVID-19 vaccine to Emmy Slonecker, 7, Tuesday, Nov. 9, 2021, in Seattle. Last week, U.S. health officials gave the final signoff to Pfizer’s kid-size COVID-19 shot, a milestone that opened a major expansion of the nation’s vaccination campaign to children as young as 5. (AP Photo/Ted S. Warren)

WASHINGTON — The campaign to vaccinate elementary school age children in the U.S. is off to a strong start, health officials said Wednesday, but experts say there are signs that it will be difficult to sustain the initial momentum.