2 doctors weighed in:
How can scientists conclude that vaccines are giving immunity?
2 doctors weighed in

1 doctor agrees
In brief: See below
During the study period of vaccines, blood work is drawn to determine if an effective immune response develops in the recipient of the study vaccine.

In brief: See below
During the study period of vaccines, blood work is drawn to determine if an effective immune response develops in the recipient of the study vaccine.
Dr. Anthony LaBarbera
Dr. Anthony LaBarbera
Thank
Get help from a real doctor now
Dr. Shontae Buffington
Board Certified, Pediatrics
13 years in practice
828K people helped
Continue
107,000 doctors available
Read more answers from doctors