vaccine : अर्थ और परिभाषाएं

A preparation of a weakened or killed pathogen, such as a bacterium or virus, or of a portion of the pathogen's structure that upon administration stimulates antibody production or cellular immunity against the pathogen but is incapable of causing severe infection.

A preparation from the cowpox virus that protects against smallpox.

Computer Science A software program designed to detect and stop the progress of computer viruses.