Moderna: Third "Booster" Dose Will Likely Be Necessary Prior To The Winter Season...
Moderna said on Thursday its Covid-19 shot was about 93 percent effective through six months after the second dose, showing hardly any change from the 94 percent efficacy reported in its original clinical trial.
However, a booster dose will be necessary prior to the winter season as antibody levels are likely to wane, Moderna said.
The comment comes as public health officials across the world debate on whether additional doses are safe, effective and necessary even as they grapple with the fast-spreading delta variant of the coronavirus.
Meanwhile, Pfizer is planning to seek authorization for a third shot later this month, and some countries like Israel have begun or plan to start administering shots to older or vulnerable people...
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