아스트라제네카 백신, "고령층서 강력한 면역반응 확인”<br /><br />The experimental COVID-19 vaccine being developed by AstraZeneca and the University of Oxford is said to be safe.<br />Researchers say it triggers a robust immune response for all adults,... including those in the high-risk age groups.<br />According to the preliminary findings of a peer-reviewed phase two trial published on Thursday,... the study involved 560 healthy adults,... including 240 over the age of 70.<br />The experimental vaccine produced a similar immune response for adults aged 18 to 55,... and those over 56.<br />The virus is most dangerous to those with existing health conditions and older adults.<br />The drugmakers expect the results of its phase three trials to be available in the coming weeks.<br /><br /><br />