Pfizer has claimed immunity given by its Covid vaccine is already waning – and it wants to dish out booster jabs for people to take six months after they have their second dose.
The US drug giant and the German firm it partnered with to develop the jab will ask American and European regulators to approve a top-up dose within weeks, it was reported.
They claim real-world data from Israel’s world-beating drive has shown ‘vaccine efficacy in preventing both infection and symptomatic disease has declined six months post-vaccination’.
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