COVID-19 booster shot to target the highly transmissible Delta variant.In an email to Global News, the companies confirmed that they have seen “encouraging data in the ongoing booster trial” of the vaccine that suggests that a third shot of the two-dose Pfizer-BioNTech vaccine has the capacity to offer the “highest levels” of protection against known COVID-19 variants, including the Delta.
Fully vaccinated but left out: Canada’s new border rules put some in a conundrum The updated version of the Pfizer COVID-19 vaccine targets “the full spike protein of the Delta variant,” according to their emailed statement and the drugmakers expect that a third dose will boost “antibody titers even higher, similar to how the third dose performs for the.