Publikationsdatenbank

Chlamydia psittaci Infection in Turkeys:
a Review (2019)

Art

Zeitschriftenartikel / wissenschaftlicher Beitrag

Autor

Hafez, Hafez Mohamed (WE 15)

Quelle

EC Veterinary Science

Bandzählung: 4

Heftzählung: 6

Seiten: 422 – 425

Sprache

Englisch

Verweise

URL (Volltext): https://www.ecronicon.com/ecve/pdf/ECVE-04-00123.pdf

Kontakt

Nutztierklinik: Abteilung Geflügel

Königsweg 63
14163 Berlin
+49 30 838 62676
gefluegelkrankheiten@vetmed.fu-berlin.de

Abstract / Zusammenfassung

Avian chlamydiosis is a usually systemic disease of birds that caused by Chlamydia psittaci. Infections with C. psittaci were de-tected in most animal species and human. In poultry, turkeys and ducks are most susceptible, but several studies showed also a high prevalence of infection in chickens too.
Infections in turkeys are associated with severe respiratory disease conditions, however, latent infection are common. Infected birds regardless of clinical history can shed Chlamydia in high concentration and constitute potential reservoirs of infection for fur-ther birds and human.
Clinical signs in turkeys indicate a systemic disease involving the respiratory and digestive tract. These include general depression and reduced feed consumption, which will lead to cachexia in severe chronic cases. Morbidity after infection with virulent strains can go up to 80 %, with less virulent strains only up to 20 %. Mortality can be up to 30 % and 5 %, respectively. Egg production in turkey hens can drop up to 20 %. Several outbreaks have been reported in turkey farms in the USA, France, Germany, The Netherlands and Belgium. In addition, many reports on Chlamydia infection (Ornithosis) by workers of turkey as well as chicken processing plants were published. The interaction between C. psittaci and other pathogens especially avian metapneumovirus (AmPV) and Ornithobac-terium rhinotracheale (ORT) in respiratory diseases complex in turkey could be demonstrated.
Humans could infected via inhalation of aerosols, when handling infected birds. Veterinarians are also at risk when visiting poul-try houses with infected birds or when doing post-mortem on them. Other professions at risk are poultry farmers, workers in pro-cessing plants and laboratory staff.