Cypriot scientists say an additional shot against the coronavirus could improve immunity for vaccinated people as well as fight against new variants, with the EU preparing to order booster vaccines despite warnings from the bloc’s drug regulator against making 'premature' moves...
AstraZeneca will start clinical trials to test a combination of its experimental Covid-19 vaccine with Russia's Sputnik V shot aimed at boosting the efficacy of the British drugmaker's vaccine, Russia's sovereign wealth fund said on Friday....
