145 bytes added ,  11:47, 30 September 2008
Line 151: Line 151:     
*Purified protein
 
*Purified protein
**From lysed organisms
+
**Single envelope protein separated from a purified virus by detergent then centrifuged (traditional method)
 +
**Genetic engineering can now make single protein vaccines
    
*Recombinant or synthetic protein
 
*Recombinant or synthetic protein
3,326

edits