The government are in a hurry to administer the booster vaccines as the third jab offers more protection against Omicron.
The reason the two jabs are less efficacious is that the original Wuhan variant on which the vaccine is modelled is different to the Omicron variant.
Priscilla Lynch - Clinical Editor, Medical Indpendent and Kingston Mills - Professor of Experimental Immunology at Trinity College Dublin joined the Last Word to discuss.
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