'Three shots of Pfizer COVID vaccine 4x less effective against Omicron'
https://www.jpost.com/breaking-news/two-covid-vaccine-shots-does-not-protect-against-omicron-sheba-688496
Those who received the second dose did not have any neutralization ability against the variant, while they continued to have some ability against Delta and even the original Wuhan strain.
“There was no neutralization ability whatsoever, and that is very worrisome,” said Dr. Gili Regev-Yochay, director of the Infectious Disease Epidemiology Unit at the hospital, in a briefing on Saturday night, adding that these people might also be exposed to serious disease.
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