Antitoxins confer passive immunity. are always genetically engineered. contain modified bacterial exotoxin molecules. utilize dna strands that will produce the antigen. contain select antigenic components of a pathogen rather than whole cells or viruses.

Antitoxins are not always genetically engineered, they do not contain modified bacterial exotoxin molecules, they do not utilize DNA strands that produces antigen. Antitoxins, also, does not contain a select antigenic components of a pathogen than whole cells or viruses.

Antitoxins are able to confer passive immunity.