1) fowl fox
2) The lesions initially looks like a whitish blister and appear on the comb, wattles and other skin areas. In rare cases lesions can be found on the body, legs and even sometimes the softer parts of the beak. The blisters develop into a dark scab and take about three weeks to heal and drop off. Fowlpox lesions, when in the infected birds mouth and throat can cause difficulty breathing, even death.
3) There is no treatment for fowl fox and prevention is through vaccination of replacement birds. Where ppreventative vaccination is used , all replacement chickens are vaccinated when the birds are 6 to 10 weeks of age and one application of fowl pox vaccine result in permanent immunity .