Speaking to CNBC, AstraZeneca's CEO said the company did not have a 'precise answer' on whether a third dose of its Covid-19 vaccine would be needed.
Ontario Premier Doug Ford receives the Astrazeneca-Oxford coronavirus disease vaccine from pharmacist Anmol Soor at Shoppers Drug Mart in Toronto, Ontario, Canada April 9, 2021.AstraZeneca is not yet sure whether a third dose of its Covid-19 vaccine will be necessary for continued protection against the virus, the company's CEO told CNBC Thursday.
"There are two dimensions to this immunity — antibodies [which] decline over time, but the second, very important dimension of vaccination is the so-called T-cells. They tend to protect people against severe disease, but they also provide durability," Soriot explained.
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