“남아공 코로나 변이 바이러스에 기존백신 안들을 수도” Three of the latest COVID-19 studies suggest that the immune response created by the infection or vaccination might not be effective against the South African variant. This raises concerns that vaccine producers will…
COVID-19 <%eb%b3%80%ec%9d%b4 class="post-title"> COVID-19 mutations make achieving herd immunity difficult: KDCA