Pfizer vaccine shows 94% effectiveness against asymptomatic transmission of COVID

Jan Hetfleisch/Getty ImagesBy Dr. ERIC SILBERMAN, MD, ABC News
(NEW YORK) — Pfizer’s vaccine is successful in preventing not only symptomatic COVID-19, but also asymptomatic disease according to new real-world data, Israel’s Ministry of Health and Pfizer/BioNTech announced Thursday.
As concerning COVID variants spread and the companies behind the three authorized vaccines hurry to test their shots against them, there’s other promising news from Thursday’s announcement: this latest analysis was performed when more than 80% of Israel’s COVID-19 cases were from the UK variant B.1.1.7 — demonstrating that the Pfizer vaccine is equally effective against this variant, which is known to be more contagious, and possibly even more deadly, Israel’s Ministry of Health reported.

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