revision preference src: This could lead to the development of an antidote that reacts with the same epitope located on these different toxins. Additionally, studies examined reactivity between horse anti-Ts antisera and synthetically produced peptides that corresponded to the amino acid sequence of several Ts toxins, including TsIV. <SEP> tgt: This could lead to the development of an antidote that reacts with the same epitope located on these different toxins. Studies examined reactivity between horse anti-Ts antisera and synthetically produced peptides that corresponded to the amino acid sequence of several Ts toxins, including TsIV.