Questions and answers about CAV and Nobilis CAV P4

Frequently asked questions about Chicken Infectious Anemia and the use of Nobilis CAV P4. If you would like to submit a query about CAV infection or vaccination against CAV, please go to our Ask the Expert section.

What is the main purpose of vaccination of breeders against CAV?
In breeders vaccination is done to prevent vertical transmission of CAV and to protect the progeny from field infections by maternal immunity during their first (3-4) weeks of their life.

When can Nobilis CAV P4 be applied?
Nobilis CAV P4 can be used from 6 weeks of age onwards. To ensure that adequate antibody levels are present the breeding stock should be vaccinated at least 6 weeks prior to the onset of lay.

Is Nobilis CAV P4 compatible with other vaccines?
Nobilis CAV P4 can be administered together with our live vaccines against Reovirus, Avian Encephalomyelitis and Fowl Pox.

How does the Nobilis CAV P4 differ from other CAV vaccine strains?
Nobilis CAV P4 is the first attenuated CAV vaccine in the market. It is compatible with our live vaccines against Reovirus, Avian Encephalomyelitis and Fowl Pox. Vaccination results in a fast, high and long-lasting antibody response.

Can Nobilis CAV P4 be combined with other vaccines?
Yes, Nobilis CAV P4 is compatible with our live vaccine against Reovirus, Avian Encephalomyelitis and Fowl Pox.  

How long will the antibody response induced by Nobilis CAV P4 last?
The antibody response induced by Nobilis CAV P4 will last for at least one production period.

Is a minimum protective titer important for protection against CAV infections?
Indeed, an average titer of VN 8log₂ is necessary to avoid infections with CAV. Birds with lower antibody levels are susceptible to subclinical infections that may result in immunosuppresion and or/ vertical transmission of the virus from the parents to the progeny.