Seasonal tick infestations of grazing cattle in two provinces with low and high CCHF incidance in Turkey


Kar S., Güven E., Akyıldız G. , Ölmez N., Deniz A., Aktaş M., ...Daha Fazla

Genes, Ecosystems and Risk of Infection, Heraklion, Yunanistan, 21 - 23 Nisan 2015, ss.83

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: Heraklion
  • Basıldığı Ülke: Yunanistan
  • Sayfa Sayıları: ss.83

Özet

Periodic sampling with 15-20 days intervals of grazing cattle was conducted in Kirklareli (European part, Trace) and Yozgat (Central Anatolia) provinces. A total of 595 cattle were sampled and 10327 ticks (17.36 tick/cattle, 87.4% infestation) were collected in Kirklareli between April and December 2013. Nine species of ticks were recorded. Tick composition was as 65.45% H. marginatum, 18.37% Rh. turanicus, 6.65% H. scupense (adults and immatures), 5.04% Rh. bursa, 2.65% Haemaphysalis spp., 1.34% Rhipicephalus immatures, and few I. ricinus and D. marginatus. A total of 459 cattle were sampled and 4652 ticks (10.14 tick/cattle, 91.29% infestation) were collected in Yozgat between April and August 2013. Almost all ticks were H. marginatum (98.45%), followed by small number of Rh. turanicus (1.38%), and H. excavatum (0.13%). Only single examples of I. ricinus and D. marginatus were collected. Although Kirklareli is a place with sporadic cases of CCHF, the number of H. marginatum per animal was much higher than Yozgat where CCHF incidence is very high. It can be explained with the low rate of human-tick contact or low viral prevalance in the ticks in Kirklareli. On the other hand, although H. marginatum population is higher than other ticks in both sites, in places with high CCHF incidence (Yozgat) it is dominating overwhelmingly and the ratio of H. marginatum to the other ticks is 38.49, while in places with very low CCHF incidence (Kirklareli) there are considerable numbers of Rhipicephalus spp. and other tick species and the ratio is only 1.90. There may be a need to further discuss the possible influence of that difference on CCHF epidemiology.