In vitro potency test for evaluation of Clostridium perfringens type D epsilon toxoid

oleh: Felipe Masiero Salvarini, Zélia Ines Portela Lobato, Prhiscylla Sadanã Pires, Rodrigo Otávio Silveira Silva, Guilherme Guerra Alves, Pedro Lúcio Lithg Pereira, Francisco Carlos Faria Lobato

Format: Article
Diterbitkan: Instituto Biológico

Deskripsi

The control of enterotoxemia caused by the epsilon toxin, produced by Clostridium perfringenstype D, is based on vaccination with epsilon toxoid. The potency test for this immunogen is conducted using seroneutralization in mice. Here, an in vitro test for detection of neutralizing antibodies with Madin-Darby Canine Kidney (MDCK) cells was standardized in order to study alternative methodologies for the potency test. Titers observed in the in vivo and in vitro seroneutralization tests had a correlation of 99.73%.