US scientists doubtful of one-shot regimen for Pfizer, Moderna COVID vaccines: WSJ
Syringes filled with a doses of Pfizer's coronavirus disease (COVID-19) vaccine are seen at a pop-up community vaccination center at the Gateway World Christian Center in Valley Stream, New York. Photo: Reuters
US scientists are skeptical of a one-shot regimen for Pfizer Inc and Moderna Inc COVID-19 vaccines, saying there isn't enough evidence that a single dose provides long-term protection, the Wall Street Journal reported here.
"It is essential that these vaccines be used as authorized by FDA in order to prevent Covid-19 and related hospitalizations and death," Peter Marks, director of the FDA's Center for Biologics Evaluation and Research, told the Journal.
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