No need yet to adapt Pfizer vaccine for Covid19 variants: BioNTech chief
The first generation vaccine developed by BioNTech-Pfizer works against coronavirus variants such as the Delta strain and does not need to be modified for the moment, the chief executive of German company BioNTech said Monday.
A decision to make a switch should be made only if it is clear that the vaccine failed to work or is only offering sub-par protection against the virus."Making a decision at the moment might turn out to be wrong in three or six months if another variant is dominating. Therefore the timing of the decision must be appropriate," he said.
BioNTech's partner Pfizer has also repeatedly amplified the case for booster shots amid the latest wave of infections.
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