Basics of toxoid vaccines and importance of Passive immunity

Summary: Toxoid vaccines are mainly used in bacterial diseases in which severe pathology is caused by exotoxins released by the bacteria. Tetanus, diptheria and pertusis are such important diseases. Toxoid vaccine are made of inactivated exotoxin.......................................... Passive immunity is the transfer of antibodies from an immuned organism to and non immuned organism. This can occur naturally as well as artificially. This immunity is of importance when the organism is immunologically immature or in as immunosuppressed state.