Poultry diseases occur in

poultry Poultry () are domesticated birds kept by humans for their eggs, their meat or their feathers. These birds are most typically members of the superorder Galloanserae (fowl), especially the order Galliformes (which includes chickens, quails, a ...

, which are domesticated birds kept for their meat, eggs or feathers. Poultry species include the

chicken The chicken (''Gallus gallus domesticus'') is a domesticated junglefowl species, with attributes of wild species such as the grey and the Ceylon junglefowl that are originally from Southeastern Asia. Rooster or cock is a term for an adult m ...

turkey Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a list of transcontinental countries, transcontinental country located mainly on the Anatolia, Anatolian Peninsula in Western Asia, with ...

duck Duck is the common name for numerous species of waterfowl in the family Anatidae. Ducks are generally smaller and shorter-necked than swans and geese, which are members of the same family. Divided among several subfamilies, they are a form t ...

goose A goose ( : geese) is a bird of any of several waterfowl species in the family Anatidae. This group comprises the genera ''Anser'' (the grey geese and white geese) and '' Branta'' (the black geese). Some other birds, mostly related to the ...

and

ostrich Ostriches are large flightless birds of the genus ''Struthio'' in the order Struthioniformes, part of the infra-class Palaeognathae, a diverse group of flightless birds also known as ratites that includes the emus, rheas, and kiwis. There are ...

Viral diseases

* Avian infectious bronchitis, caused by a strain of Avian coronavirus previously known as infectious bronchitis virus *

Avian infectious laryngotracheitis ''Gallid alphaherpesvirus 1'' (GaHV-1) is a species of virus in the order ''Herpesvirales'', family ''Herpesviridae'', subfamily ''Alphaherpesvirinae'', and genus ''Iltovirus''. Originally recognised in chickens in the United States in 1926, this ...

, caused by Gallid alphaherpesvirus 1 *

Avian influenza Avian influenza, known informally as avian flu or bird flu, is a variety of influenza caused by viruses adapted to birds.

, caused by Avian influenza virus *

Duck plague Duck plague (also known as duck viral enteritis) is a worldwide disease caused by ''Anatid alphaherpesvirus 1'' (AnHV-1) of the family ''Herpesviridae'' that causes acute disease with high mortality rates in flocks of ducks, geese, and swans. It ...

, caused by Anatid alphaherpesvirus 1 * Chicken infectious anemia, caused by Chicken anaemia virus *

Epidemic tremor ''Tremovirus'', also known epidemic tremor, is a virus genus belonging to the ''Picornaviridae'' family. The genus has two species, ''Tremovirus A'', which is also called ''Avian encephalomyelitis virus'', and ''Tremovirus B''. The first avian pi ...

, caused by Tremovirus *

Fowlpox Fowlpox is the 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, tur ...

, caused by viruses in the genus ''

Avipoxvirus ''Avipoxvirus'' (avian pox) is a genus of viruses within the family ''Poxviridae''. ''Poxviridae'' is the family of viruses which cause the afflicted organism to have poxes as a symptom. Poxviruses have generally large genomes, and other such ex ...

'' * Infectious bursal disease (IBD), also known Gumboro disease, caused by

Infectious bursal disease virus An infection is the invasion of tissue (biology), tissues by pathogens, their multiplication, and the reaction of host (biology), host tissues to the infectious agent and the toxins they produce. An infectious disease, also known as a transmiss ...

Lymphoid leukosis Lymphoid leucosis is a disease that affects chickens, caused by the retrovirus ''Avian leukosis virus''. It is a neoplastic disease caused by a virus, which may take the form of a tumor of the bursa of Fabricius and may metastasize to other ti ...

caused by

avian sarcoma leukosis virus Avian sarcoma leukosis virus (ASLV) is an endogenous retrovirus that infects and can lead to cancer in chickens; experimentally it can infect other species of birds and mammals. ASLV replicates in chicken embryo fibroblasts, the cells that contri ...

Marek's disease Marek's disease is a highly contagious viral neoplastic disease in chickens. It is named after József Marek, a Hungarian veterinarian who described it in 1907. Marek's disease is caused by an alphaherpesvirus known as "Marek's disease virus" ( ...

Newcastle disease Virulent Newcastle disease (VND), formerly exotic Newcastle disease, is a contagious viral avian disease affecting many domestic and wild bird species; it is transmissible to humans. Though it can infect humans, most cases are non-symptomatic; ...

* Viral arthritis, caused by Avian reovirus

Parasitic diseases

Scaly leg Scaly foot, or knemidocoptiasis is a bird ailment that is common among caged birds and also affects many other bird species. It is caused by mites in the genus '' Knemidokoptes'' which burrow into the bird's flesh. The tunnels made by the mites ...

, caused by the mite ''

Knemidocoptes mutans ''Knemidokoptes mutans'', also known as the scaly leg mite, is a species of mite Mites are small arachnids (eight-legged arthropods). Mites span two large orders of arachnids, the Acariformes and the Parasitiformes, which were historical ...

'' * Infestation by ''

Dermanyssus gallinae ''Dermanyssus gallinae'' (also known as the red mite) is a haematophagous ectoparasite of poultry. It has been implicated as a vector of several major pathogenic diseases. Despite its common names, it has a wide range of hosts including severa ...

'', the red poultry mite * Infestation by ''

Echidnophaga gallinacea ''Echidnophaga gallinacea'', also known as the hen flea or sticktight flea, is part of the 2,500 known flea types in the Siphonaptera order. ''Echidnophaga gallinacea'' appear dark brown in colour and is a small flea measuring approximately 2 m ...

'', the sticktight flea

Bacterial diseases

* Colibacillosis in poultry *

Infectious coryza in chickens Infectious coryza is a serious bacterial disease of chickens, which affects respiratory system, and it is manifested by inflammation of the area below the eye, nasal discharge, and sneeze, sneezing.Blackall P J, Matsumoto M., Yamamoto R. Infectious ...

* ''

Ornithobacterium rhinotracheale ''Ornithobacterium rhinotracheale'', or ORT, is a bacteria, bacterium that causes Respiration (physiology), respiratory disease in poultry. It can cause disease in birds of all ages and is potentially fatal. ''O. rhinotracheale'' is found worldw ...

'' * Pullorum disease * '' Riemerella anatipestifer'' * Salmonellosis in poultry * Staphylococcal infection in poultry *

Streptococcal infection in poultry ''Streptococcus'' species are the cause of opportunistic infections in poultry leading to acute and chronic conditions in affected birds. Disease varies according to the Streptococcal species but common presentations include septicaemia, peritonitis ...

* Omphalitis in chicks (mushy chick disease) *

Mycoplasmosis ''Mycoplasma'' is a genus of bacteria that, like the other members of the class '' Mollicutes'', lack a cell wall around their cell membranes. Peptidoglycan ( murein) is absent. This characteristic makes them naturally resistant to antibiotic ...

Fowl cholera Fowl cholera is also called avian cholera, avian pasteurellosis, avian hemorrhagic septicemia. Abraham b. It is the most common pasteurellosis of poultry. As the causative agent is ''Pasteurella multocida'', it is considered to be a zoonosis. Adu ...

Campylobacteriosis Campylobacteriosis is an infection by the ''Campylobacter'' bacterium, most commonly '' C. jejuni''. It is among the most common bacterial infections of humans, often a foodborne illness. It produces an inflammatory, sometimes bloody, diarrhea or ...

Pseudomonas ''Pseudomonas'' is a genus of Gram-negative, Gammaproteobacteria, belonging to the family Pseudomonadaceae and containing 191 described species. The members of the genus demonstrate a great deal of metabolic diversity and consequently are able ...

* Ornithobacteriosis

Protozoal diseases

* Histomoniasis (blackhead disease), caused by ''

Histomonas meleagridis ''Histomonas meleagridis'' is a species of parasitic protozoan that infects a wide range of birds including chickens, turkeys, peafowl, quail and pheasants, causing infectious enterohepatitis, or histomoniasis (blackhead diseases). ''H. meleagr ...

'' *

Coccidiosis Coccidiosis is a parasitic disease of the intestinal tract of animals caused by coccidian protozoa. The disease spreads from one animal to another by contact with infected feces or ingestion of infected tissue. Diarrhea, which may become bloody in ...

Fungal diseases

* Ergotism, which occurs when poultry feed is contaminated with toxic alkaloids produced by fungi of the genus '' Claviceps'' *

Aspergillosis Aspergillosis is a fungal infection of usually the lungs, caused by the genus ''Aspergillus'', a common mould that is breathed in frequently from the air around, but does not usually affect most people. It generally occurs in people with lung di ...

, a non-contagious disease caused when birds inhale ''

Aspergillus ' () is a genus consisting of several hundred mold species found in various climates worldwide. ''Aspergillus'' was first catalogued in 1729 by the Italian priest and biologist Pier Antonio Micheli. Viewing the fungi under a microscope, Miche ...

'' spores *

Ringworm Dermatophytosis, also known as ringworm, is a fungal infection of the skin. Typically it results in a red, itchy, scaly, circular rash. Hair loss may occur in the area affected. Symptoms begin four to fourteen days after exposure. Multiple a ...

References

{{DEFAULTSORT:Poultry disease Lists of animal diseases