BEIJING (Reuters): Antibodies triggered by Sinovac Biotech’s Covid-19 vaccine declined below a key threshold from around six months after a second dose for most recipients, but a third shot had a strong booster effect, a lab study showed.
BEIJING (Reuters): Antibodies triggered by Sinovac Biotech’s Covid-19 vaccine declined below a key threshold from around six months after a second dose for most recipients, […]