The Ph. Eur. Commission adopted the replacement batch (batch 2) of the Pertussis Toxin Biological Reference Preparation by correspondence in May 2020.
Batch 1 is currently available for regular sales. Batch 2 will be available from the EDQM once the remaining stocks of batch 1 have been exhausted (estimated end 2020).
To order, please consult the Ph. Eur reference standards orders and catalogue web page, catalogue code Y0000021.