A resurgence of virus infections thanks to the delta variant is likely to mean sustained demand for vaccines around the world. Further, it is widely expected that many people could require booster shoots to bolster the immunity gained in the initial round of immunizations.
Pfizer said in a presentation accompanying its earnings release that emerging real-world data “suggests immunity against infection and symptomatic disease may wane,” underscoring the need for boosters.
The company said regulators will determine “whether, and which, populations to recommend booster,” and that they will likely first focus on those with compromised immune systems and older adults.
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