Fowlpox is a worldwide disease of poultry caused by viruses of the family Poxviridae and the genus Avipoxvirus. The viruses causing fowlpox are distinct from one another but antigenically similar, possible hosts including chickens, turkeys, quail, canaries, pigeons, and many other species of birds. There are two forms of the disease. The first is spread by biting insects (especially mosquitoes) and wound contamination and causes lesions on the comb, wattles, and beak. Birds affected by this form usually recover within a few weeks. The second form is spread by inhalation of the virus and causes a diphtheritic membrane to form in the mouth, pharynx, larynx, and sometimes the trachea. The prognosis for this form is poor.

Vaccines are available for fowlpox (ATCvet code: QI01AD12). Chicken are usually vaccinated with pigeonpox virus. Turkeys are also routinely vaccinated.

Fowl is a word for birds in general but usually refers to birds belonging to one of two biological orders, namely the gamefowl or landfowl (Galliformes) and the waterfowl (Anseriformes). Studies of anatomical and molecular similarities suggest these two groups are close evolutionary relatives; together, they form the fowl clade which is scientifically known as Galloanserae (initially termed Galloanseri). This clade is also supported by morphological and DNA sequence data as well as retrotransposon presence/absence data.

As opposed to "fowl", "poultry" is a term for any kind of domesticated bird or bird captive-raised for meat, eggs, or feathers; ostriches, for example, are sometimes kept as poultry, but are neither gamefowl nor waterfowl. In colloquial speech, however, the term "fowl" is often used near-synonymously with "poultry" or even "bird", and many languages do not distinguish between "poultry" and "fowl". Nonetheless, the fact that Galliformes and Anseriformes most likely form a monophyletic group makes a distinction between "fowl" and "poultry" warranted.

A pox is a type of disease, often caused by an animal virus, characterised by pockmarks. The term may be used (in an archaic sense) to refer to disease.

Pox, as a disease, may refer to:

In computing, it may refer to:

In other uses, pox or POX may refer to:

Ross Perry (born 7 February 1990) is a Scottish association footballer who plays as a centre back for Scottish Premier League club Rangers.

Perry's first appearance for Rangers came in a post-season friendly match against Los Angeles Galaxy at the Home Depot Center, coming on as a substitute for David Weir. This made him the first player born in the 1990s to play for the Rangers first team. Perry signed a two-year contract extension in October 2007.

On 28 August 2009, he joined Oxford United on a season-long loan. On 11 February 2011, he joined Falkirk in another loan spell, until the end of the 2010-11 season.

Perry made his professional Rangers debut in the Scottish Premier League on 13 August 2011, replacing Kyle Bartley in a match against Inverness CT. A week later, Perry was given his first start for Rangers, and played the full 90 minutes, helping keep a clean sheet in a 3-0 win away to Motherwell.

On 9 September 2011, Perry signed a new four-year contract with Rangers, tying him to the club until summer 2015.