Systematic Veterinary Virology

STRAINS AND SEROTYPE

Strains and serotype

• Though there are many strains all strains are immunologically same. Some of the important virus strains are as follows

Pathotype Strains

• Velogenic Hertz 33, Texas GB
• Mesogenic K, R2B
• Lentogenic F, LaSota, Ulster 2C
• Avirulent V4