What is Avian pox, it is an epidemic of several types of viruses that infect most birds, the most common of which is canaries. The disease is also common in pigeons, chickens, lovebirds, and South American parrots, but it is less common in Australian parrots.
At least 17 different viruses have been identified as carrying smallpox epidemics.
Poxviruses acclimatize to birds of certain ranks and species, so some viruses infect and attack a certain type of bird.
For this reason, smallpox has been attributed to affected birds such as chickenpox (Fowl Pox), Canary Pox, and Pigeon smallpox (Pigeon Pox).
Viruses are usually transmitted through the mosquito net, which is believed to incubate the virus for a period of approximately 50 days. Researchers also believe that ticks and mites play a role in transmitting the virus as well.
The smallpox virus can be transmitted indirectly through water and even human clothing, which is contaminated by the secretions of an infected person's saliva.
The virus is active in the regions of the Middle East, especially in late summer and early autumn, due to the large spread of mosquitoes during this period. The infection is rapid and fatal, and the survival rate is estimated from 0 to 20%.
Forms of fowl pox
It causes a rash or skin blisters on areas that are not covered by feathers, such as legs and feet, around the eyes, beak, crest, and deltoid in chickens.
The rash is centered on the crest and dahlias in chickens, while the rash appears on any part of the bird's body in canaries: More details in the Canary Pox article.
It causes rashes in the throat and upper respiratory tract (pharynx, esophagus, and nose).
Symptoms of dry smallpox
The appearance of pimples or pimples of yellow skin on the feet and the skin of the head, especially around the eyelids of the bird and the back of the beak, and the grains change from yellow to brown or brown to yellowish color.
Skin pimples begin to appear 10 to 14 days after infection, and appear as small spots and then turn into larger pimples with water inside, then the water turns into pus and at the last stage it dries up and becomes like a crust that is easy to remove.
Symptoms of wet or wet smallpox
Rashes or sores appear on the tissue of the upper layer of the larynx, tonsils, and pharynx. The rashes usually start as small, white, and crusty (like cottage cheese) and swell and turn yellow.
The multiplication of rashes inside the mouth greatly hinders the process of eating, drinking, and breathing, so this form is more dangerous to the life of the affected bird.
Birds can be infected by one of the two forms, and sometimes the bird becomes infected with them together (wet and dry). In canaries, the virus can cause blood poisoning, causing sudden death.
Usually, the affected bird does not show any symptoms until after the appearance of mouth sores or a rash on the body. Therefore, the appearance of the bird not sick does not necessarily mean that it is not infected with a specific disease, and this warns us to isolate any new bird we have from the rest of the birds for a period of not less than 30 days.