my sister (a nurse) had antibody test before jab (never had covid symptoms), no antibodies then one after first jab = antibodies then another test weeks after second jab = strong antibody response. Her colleagues have all done the same and shown antibodies after having jab.
my sister (a nurse) had antibody test before jab (never had covid symptoms), no antibodies then one after first jab = antibodies then another test weeks after second jab = strong antibody response. Her colleagues have all done the same and shown antibodies after having jab.
Pfizer btw