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Q: Fowl Pox (Dry) Overview

A:

Fowl Pox (Dry) Also called
Fowl pox, sore head, cutaneous pox, dry pox

Prevalence-
Common

Signs
General signs -
Scabby, discolored, swollen bumps on face, eyes.
Cardinal or diagnostic signs -
Pox spread from bird to bird, unlike simple injuries.

fowl pox
Black spots like these are characteristic of fowl pox

Cause/s -
Avipoxvirus. This is the same family of viruses that causes wet pox, however in the case of dry pox, it does not invade the windpipe/trachea.

Communicability -
Very communicable, but spreads slowly via blood from scratches, wounds or other injuries. Also spread by mosquitoes and mites, in which case the spread may be quick. Passes from hen to chick in the egg.

fowl pox
Fowl pox can also entail swollen/watery eyes

Communicability to humans -
No, humans cannot be infected with this virus. (Pox in humans is caused by a different virus.) However you can carry the virus to your birds on shoes or equipment, so be sure to thoroughly wash and sanitize hands after handling birds or equipment, and be sure to sanitize equipment.

Incubation period -
4 to 14 days

Latent -
Occasionally some birds can become carriers and shed virus during times of stress

Endemic -
Yes, but especially common in flocks crowded into small areas, such as large commercial flocks or small pet flocks staying in the coop during winter

Home treatment and/or prevention -
Prevention: Vaccinate. Practice good biosecurity. Quarantine any birds with pox.

Treatment: None. Still, making sure the sick birds are not subject to other stressors can reduce mortality. For instance, make sure sick birds have access to an area that is sufficiently warm (or cool). If scabs interfere with eating and drinking make sure to remove.

Veterinary care -
A vet may prescribe antibiotics to stave off secondary infections while birds recover, however no medication exists for the fowl pox virus itself

fowl pox
Fowl pox - cured!

Recovery - Most birds (98%) survive dry pox, however pox may infect eyes which cause additional problems. Recovery typically takes three to five weeks

Other conditions, illnesses and/or diseases with similar signs:
Injuries of the face and comb. Wet pox may also have external manifestations.

Also consider browsing through this list of other chicken illnesses with respiratory symptoms.