The plans include the acquisition of more than 170 million doses of the new boosters, which will be available to consumers without an out-of-pocket cost.
U.S. health regulators last month authorized injecting the shot intradermally in adults, meaning between layers of the skin rather than below the skin, in an effort to stretch out low vaccine supplies. read more
Russia's invasion of Ukraine has prompted the biggest shake-up of European energy markets this century. This film explains how Europe became so dependent on cheap Russian gas, and explores the hard choices facing the EU as it tries to balance energy security and climate ambitions.
Scientists have been studying the effects of lockdowns during the pandemic in the hope that their findings could inform the response to future crises. They have reached some conclusions: countries that acted quickly to bring in stringent measures did best at preserving both lives and their economies, for instance.
WASHINGTON — Researchers studying next-generation vaccines to fight an evolving Covid-19 threat are running into problems getting existing vaccines to use in their research.
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