This is how vaccines work
From this animator: https://www.bilibili.com/video/BV1i64y167av?p=1&share_medium=iphone&share_plat=ios&share_source=COPY&share_tag=s_i×tamp=1625548427&unique_k=r9jq8n
This is how vaccines work
From this animator: https://www.bilibili.com/video/BV1i64y167av?p=1&share_medium=iphone&share_plat=ios&share_source=COPY&share_tag=s_i×tamp=1625548427&unique_k=r9jq8n