Pfizer jabs work well against Omicron disease, first real-world study shows

Pfizer vaccines protect against the Omicron variant of Covid-19, with two doses offering 70% protection against severe disease and admission to hospital, a large real-world study by Discovery Health and the SA Medical Research Council shows.

The effectiveness of the double-dose Pfizer vaccine against becoming infected dropped from 80% against previous variants to only 33% against the Omicron variant.

About 78,000 pathology test results for Omicron infection, vaccination results and clinical results from Discovery Health’s data from November 15 to December 7 were the basis of this research. The variant, identified late in November, is driving SA’s fourth wave of infections and is highly transmissible.

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