The ____________ was the first successful vaccine to be developed against a contagious disease
ASmallpox vaccine
BPolio vaccine
CRubella vaccine
DNone of the above
ASmallpox vaccine
BPolio vaccine
CRubella vaccine
DNone of the above
Related Questions:
Which of the following statements are true?
1.An antibody is an disease causing agent that the body needs to remove.
2.An antigen, also known as an immunoglobulin is a large, Y-shaped protein used by the immune system to identify and neutralize foreign objects such as pathogenic bacteria and viruses.