October 2023

Chronic respiratory disease is a slow spreading contagious disease in birds with hacking cough, sneezing and tracheal rales. Etiology: Mycoplasma gallisepticum Susceptible hosts: predominantly in chickens and turkeys. Mode of transmission: a) aerosol: droplet infection or inhalation. Nasal discharges. Wind borne transmission. b) Contact: bird to bird transmission. Known as horizontal transmission. c) Eggs: vertical […]