Khelaf SAIDANI, Ceferino LÓPEZ-SÁNDEZ, Pablo DIAZ FERNANDEZ, Eva CABANELAS-DOPAZO, Ana PEREZ-CREO, Abdenour KADDOUR, Patrocinio MORRONDO-PELAYO, Pablo DIEZ-BANOS, Ahmed BENAKHLA, Rosario PANADERO FONTAN

Cezayir - Mağrip'te Bovine Hipodermozisi: İndirek ELİSA İle Sero-epidemiyolojik Bir Çalışma

Mayıs - Temmuz 2014 tarihleri arasında Kuzey Cezayir'de 4 bölgeden toplam 837 sığır serum örneği indirek ELİZA ile anti-Hipoderma antikorlarını belirlemek amacıyla toplandı. Çıban sayımları ve bazı iç (yaş, tür, cinsiyet) ve dış (lokasyon, barınma koşulları) faktörler dikkate alındı. İndirek ELİZA ile seroprevalans %49.8 olarak tespit edilirken klinik incelemede hayvanların %25.7'i enfeste olarak belirlendi. Cinsiyet hariç diğer tüm faktörlerin anlamlı derecede seroprevalans ile ilişkili olduğu tespit edildi. Barınma koşullarının seroprevalansı en fazla etkileyen faktör olduğu belirlendi. Eksentif (%79) veya yarı-eksentif (%50.6) şartlarda barındırılan hayvanlarda intesif şartlara oranla (%5.8) risk sırasıyla 74.10 ve 18.13 olarak tespit edildi. Hem seroprevalans hem de enfeksiyon yoğunluğu hayvanların yaşı ile ters orantılıydı. Genç hayvanlar (?3 yaş) daha az sıklıkla infeste olurken en şiddetli enfeksiyonu gösterdiler. Kuzey Cezayir'de belirlenen seroprevalans sığırlarda yüksek düzeyde Hipoderma spp. maruziyetini göstermektedir. Bu miyazise bağlı ekonomik kayıpları minimalize etmek için makrosiklik lakton uygulamalarından önce serolojik taramalar ışığında kontrol programlarının geliştirilmesi önemlidir.

Bovine Hypodermosis in the Maghreb: Sero-epidemiological Study in Algeria by Indirect ELISA

During May-July 2014, a total of 837 cattle serum samples were collected from 4 departments in northern Algeria and tested for the presence of anti-Hypoderma antibodies by indirect ELISA. Warble counts and some intrinsic (age, breed, sex) and extrinsic factors (location, husbandry system) were also considered. The overall seroprevalence by indirect ELISA was 49.8%, whereas by clinical inspection only 25.7% of the animals were infested. Except for the sex, all the factors included in the study were significantly associated with seroprevalence. The husbandry system was identified as the factor with more influence in seroprevalence, so cattle kept under extensive (79%) or semi-extensive (50.6%) husbandry systems have 74.10 and 18.13 more risk than those under an intensive system (5.8%), respectively. Both the seroprevalence and the intensity of infection are inversely related with the age of the animals. So, the youngest animals (?3 years) are less frequently infested but display the highest intensities of infection. The seroprevalence detected in northern Algeria reflects a high exposition of cattle to Hypoderma spp. To minimize the economic losses due to this myiasis it is essential to establish control programs based on serological surveillance prior to the administration of macrocyclic lactones

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