NEW YORK, Sept. 15 (Xinhua) -- The rollout of the COVID-19 vaccination program in the United States has reached new heights of complexity with the start of the bivalent booster program, leading to concerns about the potential for more errors in the administration of vaccines, reported news portal STAT on Wednesday.
Even before the addition of the new booster shots, more than 5,300 errors in vaccine dose delivery in children alone were reported, according to data from the Centers for Disease Control and Prevention (CDC).
