Strain

Description

F

Lentogenic. Usually used in young chickens but suitable for use as a vaccine in chickens of all ages.

B1

Lentogenic. Slightly more virulent than F, used as a vaccine in chickens of all ages.

La Sota

Lentogenic. Often causes post vaccination respiratory signs, used as a booster vaccine in flocks vaccinated with F or B1.

V4

Avirulent. Used in chickens of all ages.

V4-HR

Avirulent. Heat Resistant V4, thermostable, used in chickens of all ages.

I-2

Avirulent. Thermostable, used in chickens of all ages.

Mukteswar

Mesogenic. An invasive strain, used as a booster vaccine. Can cause adverse reactions (respiratory distress, loss of weight or drop in egg production and even death) if used in partially immune chickens. Usually administered by injection.

Komarov

Mesogenic. Less pathogenic than Mukteswar, used as booster vaccine. Usually administered by injection.