What's the difference in protection against Omicron between 2 doses and 3 doses of vaccine?

Evidence had emerged suggesting the highly infectious Omicron variant has the ability to escape the protection two vaccine doses offer. So, how effective are two doses compared to three against Omicron? Let's break it down.

from Healthcare/Biotech-Industry-Economic Times https://ift.tt/gAJ1UHC
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