feb 28, 1963 - Sabin's oral polio vaccine licensed
Description:
It stimulates antibodies to all 3 types of poliovirus and it also provides protection from polio paralysis by preventing the spread of the poliovirus to the central nervous system. It is an oral vaccine and is inexpensive costing roughly 8 cents a dose but its "live" so it needs to be refrigerated.Added to timeline:
Date:
feb 28, 1963
Now
~ 61 years ago
