Atlarda Lyme Borreliozis

Öz

Lyme hastalığı, spiral şekilli bir bakteri olan Borrelia burgdorferi tarafından oluşturulan, özellikle Ixodes cinsi kene türleri ile bulaşan ve geniş bir konakçı yelpazesi bulunan zoonoz bir hastalıktır. Vektör kenelerin dünya genelinde geniş bir yayılım göstermesi, yaban hayvanları ve göçmen kuşlarla uzun mesafelere ulaşabilmesi önemli bir risk faktörüdür. Lyme hastalığı, 1975 yılında nispeten yakın sayılabilecek bir tarihte, ABD’nin Connecticut Eyaletinin Lyme Kasabasında çocuklar ve yetişkinlerde ortaya çıkan artrit benzeri semptomlar veren salgın nedeniyle yapılan çalışmalar sonucu adlandırılmış, etken Borrelia burgdorferi ise 1982 yılında Willy Burgdorfer tarafından izole edilerek adlandırılmıştır. Kronik zayıflama, davranış değişiklikleri, abort, hafif ateş gibi patognomik olmayan bulgulara sahiptir ve atlarda sinirsel semptomlara yani nöroborrelliozise neden olmaktadır. Lyme hastalığı etkeni Borrelia burgdorferi’nin zoonoz karakteri ve kedi, köpek, at gibi insanlarla yoğun teması olan hayvanların da konakçı olması nedeniyle insanlarda da ciddi vakalara neden olması sebebiyle toplum sağlığı açısından risk oluşturan bir hastalıktır. Kültür ortamında üremesi oldukça güç olduğundan, tanısında serolojik testlerin kilit rol oynadığı Lyme hastalığının seroprevalansının yüksek olduğu ve uluslararası hayvan hareketlerinin kolaylaştığı, vektör kenelerin küresel ısınma ile yayılımının değişim gösterdiği günümüzde, gün geçtikçe arttığı bilinmektedir. Bu derlemede, Türkiye’de henüz ihbarı zorunlu olmayan bir hayvan hastalığı olan, Lyme hastalığı ve etkeni hakkında genel bilgi, tanı ve tedavisi ile birlikte Türkiye’de ve dünyada atlar ile yapılmış çalışmalarda elde edilen seroprevalansa dair bilgi verilmesi amaçlanmıştır.

Anahtar Kelimeler

• At
• Borreliozis
• Borrelia burgdorferi
• Lyme hastalığı
• Türkiye

Lyme Borreliosis in Horses

Öz

Lyme disease is a zoonotic disease caused by Borrelia burgdorferi, a spiral-shaped bacterium, transmitted especially by tick species of the Ixodes genus, and has a wide host range. The fact that vector ticks spread widely around the world and can travel long distances with wild animals and migratory birds is an important risk factor. Lyme disease was named as a result of studies carried out relatively recently in 1975, due to an epidemic that caused arthritis-like symptoms in children and adults in the Lyme Town of Connecticut, USA, and the causative agent Borrelia burgdorferi was isolated and named by Willy Burgdorfer in 1982. It has non-pathognomonic findings such as chronic wasting, behavioral changes, abortion, mild fever, and causes nervous symptoms, namely neuroborrelliosis, in horses. Lyme is a disease that poses a risk to public health due to the zoonotic character of Borrelia burgdorferi, and the fact that animals that have extensive contact with humans, such as cats, dogs and horses, cause serious cases in humans as well. It is known that the seroprevalence of Lyme disease, for which serological tests play a key role in diagnosis as it is very difficult to reproduce in culture, is high and is increasing day by day, as international animal movements are becoming easier and the spread of vector ticks is changing with global warming. In this review, it is aimed to provide general information about Lyme disease and its causative agent, which is an animal disease that is not yet mandatory to be notified in Turkey, its diagnosis and treatment, as well as information about the seroprevalence obtained from studies conducted with horses in Turkey and around the world.

Anahtar Kelimeler

• Horse
• Borreliosis
• Borrelia burgdorferi
• Lyme Disease
• Turkiye

Kaynakça

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