Serotypes / Strains

SEROTYPES / STRAINS
  • Serotype 1 (Gallid Herpesvirus 2)- contains all pathogenic strains and their derived attenuated variants.  Virulence ranges from mild to high. The strains are oncogenic.
  • Serotype 2 (Gallid Herpesvirus 3)- avirulent and non-oncogenic strains.
  • Serotype 3 (Meleagrid Herpesvirus 1)- avirulent virus of turkeys.

Serotype 1

  • This group includes all oncogenic strains.
    • classical MD 
    • V V strains 
    • V V+ strains 
    • attenuated strains 
  • Vaccine strains
    • CVI988 (Rispens)
    • 988 clone C
    • 988/C/RC
    • R2/23
    • All can be used as a single vaccine strain or as part of a multivalent combination.

Serotype 2

  • non-oncogenic chicken strains
    • Vaccine strains
      • SB1
      • 301B
      • Used in bi-valent or tri-valent vaccines only.

Serotype 2

  • non-oncogenic chicken strains
    • Vaccine strains
      • SB1
      • 01B
      • Used in bi-valent or tri-valent vaccines only.
Last modified: Friday, 1 October 2010, 10:17 AM