Vectormune FP ILT (fowl pox & avian infectious laryngotracheitis vaccine) is used in chickens to protect against fowlpox (FP) and infectious laryngotracheitis (ILT). Helps reduce skin lesions from fowlpox, the clinical signs and tracheal damage caused by ILT, and the severity of fowlpox lesions, which can affect the skin and mucous membranes of chickens.