Similarly, symantec releases a rapid release definition which contains the latest of the virus signatures but they are not certified.
Symantec releases certified definitions 4 times a day. These definitions are certified.
That can be compared to the official launch of the antidote from the Bio Tech vendor.
Please correct me if I am wrong in any of the things in mentioned above or Bio industry. Otherwise it may look like comparing apples with oranges.
AniketFurther anlyzing the analogy, if a virus is widespread in an area and the Bio Company has crearted a fix. But it is not certified yet. However, considering the urgency of the matter it is made available.