Publications by authors named "P Chagnaud"

Article Synopsis
  • The European Pharmacopoeia requires hepatitis A vaccine batches to be tested for potency prior to market release, using a validated ELISA testing method established in 2012.
  • A new coating reagent (batch 2) was developed to replace the depleted batch 1, maintaining the same production standards and working concentration.
  • The new batch 2 was confirmed suitable for use in testing and officially adopted as the Ph. Eur. Hepatitis A virus Coating Reagent by the Commission in November 2023.
View Article and Find Full Text PDF

A project aimed at establishing replacement batches for the European Pharmacopoeia (Ph. Eur.) Biological Reference Preparation (BRP) Bordetella (B.

View Article and Find Full Text PDF

For acellular pertussis (aP) vaccines, the current European Pharmacopoeia (Ph. Eur.) monograph Pertussis vaccine (acellular, component, adsorbed) (1356) requires an immunogenicity assay in mice or guinea pigs to assess the potency of each lot of vaccine (Ph.

View Article and Find Full Text PDF

Members of the genus Lactobacillus are common inhabitants of the gut, yet little is known about the traits that contribute to their ecological performance in gastrointestinal ecosystems. Lactobacillus reuteri 100-23 persists in the gut of the reconstituted Lactobacillus-free mouse after a single oral inoculation. Recently, three genes of this strain that were specifically induced (in vivo induced) in the murine gut were identified (38).

View Article and Find Full Text PDF

Lactobacillus plantarum NCIMB8826 was selected as a bacterial carrier for the development of live mucosal vaccines. This strain was reported to display interesting pharmaco-kinetic properties when fed to human volunteers and is also able to persist in the mouse intestine. The non-toxic C fragment of tetanus toxin (TTFC) was used as a model antigen.

View Article and Find Full Text PDF