adjuvanted vaccine against necrotic enteritis of chickens due to Clostridium perfringens

This medicine is now withdrawn from use in the European Union.


The marketing authorisation for Netvax has been withdrawn at the request of the marketing authorisation holder.

This EPAR was last updated on 11/06/2014

Authorisation details

Product details
Agency product number
Active substance
Clostridium-perfringens-type-A alpha toxoid
International non-proprietary name (INN) or common name
adjuvanted vaccine against necrotic enteritis of chickens due to Clostridium perfringens
Anatomical therapeutic chemical veterinary (ATCvet) codes
Publication details
Marketing-authorisation holder
Intervet International BV
Date of issue of marketing authorisation valid throughout the European Union
Contact address
Intervet International B.V.
Wim de Körverstraat 35
5831 AN Boxmeer
The Netherlands

Product information

19/09/2013 Netvax - EMEA/V/C/000134 - IB/0006

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Product information documents contain:

  • summary of product characteristics (annex I);
  • manufacturing authorisation holder responsible for batch release (annex IIA);
  • conditions of the marketing authorisation (annex IIB);
  • labelling (annex IIIA);
  • package leaflet (annex IIIB).

You can find product information documents for centrally authorised human medicines on this website. For centrally authorised veterinary medicines authorised or updated from February 2022, see the Veterinary Medicines Information website.

Pharmacotherapeutic group

Immunologicals for aves

Therapeutic indication

For the active immunisation of chickens to provide passive immunisation against necrotic enteritis to their progeny, during the laying period.

To reduce mortality and the incidence and severity of lesions caused by Clostridium-perfringens-type-A-induced necrotic enteritis. Efficacy was demonstrated by challenge of chicks approximately three weeks after hatching.

The onset of passive transfer of immunity: 6 weeks following completion of the vaccination procedure.

The duration of passive transfer of immunity: 51 weeks following completion of the vaccination procedure.

Assessment history

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