Delta-specific vaccine could be ready in time for winter booster campaign

Pfizer will begin clinical trials next month for an altered version of its Covid jab that targets full spike protein of variant

Daniel Murray

Political Correspondent @danieltmurray
18th July, 2021
Delta-specific vaccine could be ready in time for winter booster campaign
A spokeswoman for Pfizer: recent data from Israel showed vaccine efficacy against infection and symptomatic disease “has declined six months post-vaccination”.

Hopes are rising that a Delta-specific Covid-19 vaccine will be available in time for Ireland’s winter booster campaign, as the Israeli prime minister said new evidence in the country was showing vaccine protection to be “significantly less” against the Delta variant.

Pfizer-BioNTech last week announced that it would begin clinical trials in August for an altered version of its mRNA Covid-19 vaccine that targets the full spike protein of the Delta...

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