Virsin 423L

This inactivated oil-emulsion vaccine is formulated to protect poultry against three significant viral diseases: Newcastle Disease, Infectious Bronchitis, and Egg Drop Syndrome ’76.
Newcastle Disease, caused by Avian orthoavulavirus 1, is a highly contagious condition that affects the respiratory, digestive, and nervous systems of poultry, often resulting in severe clinical signs and high mortality.
Infectious Bronchitis, caused by Avian infectious bronchitis virus (IBV), is a coronavirus that primarily targets the respiratory tract, but also compromises renal function and egg production, leading to economic losses.
Egg Drop Syndrome ’76, caused by Duck Adenovirus-1, leads to reduced egg production and poor eggshell quality in laying hens, often without overt signs of illness.

The vaccine elicits strong humoral immunity and is primarily administered to laying and breeding hens to ensure long-term protection and improved flock productivity. It plays a critical role in comprehensive disease control strategies alongside stringent biosecurity practices.