Infection of calves with Theileria annulata in Tunisia: Economic analysis and evaluation of the potential benefit of vaccination

Gharbi, Mohamed; Sassi, Limam; Dorchies, Philippe; Darghouth, Mohamed Aziz

doi:10.1016/j.vetpar.2006.01.015

Cited by 70 publications

(60 citation statements)

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“…Ticks bite on the host may lead to inflammation and irritation on the skin at the sites of their attachment causing cutaneous abrasions and leading to damage hide resulting in reduction of the quality and value of leather up to 20-30% (Gharbi et al, 2006). Tick bites can mostly to sensitive areas of skin like vagina, teats, ear, eyes etc.…”

Section: Page159mentioning

confidence: 99%

Prevalence Study on Tick Infestations of Goat in Lower Shivalik Region of Uttarakhand

Gopalakrishnan¹,

Dimri²,

Nandi³

et al. 2017

Int. J. Livest. Res.

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Section: Page159mentioning

confidence: 99%

Prevalence Study on Tick Infestations of Goat in Lower Shivalik Region of Uttarakhand

Gopalakrishnan¹,

Dimri²,

Nandi³

et al. 2017

Int. J. Livest. Res.

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“…Tropical theileriosis, caused by the protozoan parasite Theileria annulata, is transmitted by several tick species of the genus Hyalomma (Robinson 1982). Worldwide, approximately 250 million cattle are at risk of tropical theileriosis (Uilenberg 1981;Norval et al 1992;Gharbi et al 2006). The control strategy is based on control or eradication of the vector ticks, immunization of target animals by attenuated vaccines (Brown 1990) and chemotherapy with buparvaquon or long-lasting tetracycline.…”

Section: Introductionmentioning

confidence: 99%

“…Vaccination is an important measure against tropical theileriosis in an endemic area (Brown 1990;Ahmed and Mehlhorn 1999;Pipano and Shkap 2000;Gharbi et al 2006). Thus, attenuated schizont vaccines have been successfully used for vaccination of susceptible cattle against tropical theileriosis in Israel, Iran, Morocco and Tunisia (Pipano and Shkap 2000;Gharbi et al 2006).…”

Section: Introductionmentioning

confidence: 99%

“…Thus, attenuated schizont vaccines have been successfully used for vaccination of susceptible cattle against tropical theileriosis in Israel, Iran, Morocco and Tunisia (Pipano and Shkap 2000;Gharbi et al 2006). The duration of immunity after sporozoite or schizont infections has not been determined yet but does not appear to be life long, and re-vaccination might be required for cattle in herds with a low tick infection rate.…”

Section: Introductionmentioning

confidence: 99%

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Economical impact of tropical theileriosis in the Cappadocia region of Turkey

et al. 2007

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This study was initiated to investigate the economical impact of vaccination against tropical theileriosis in cattle in Cappadocia in Turkey. A total of 554 vaccinated and non-vaccinated animals were monitored for Theileria annulata infection using microscopic examination serology by measuring the antibody response of the animals by the indirect immunofluorescence antibody test (IFAT). The prevalence of T. annulata infection, morbidity and mortality were significantly higher in unvaccinated than in vaccinated cattle, whereas the seropositivity was significantly lower in the unvaccinated group. Acute tropical theileriosis cases were diagnosed in 156 of 554 (27.61%) cattle, and 86 of 156 (56.21%) died from the disease. The total economic losses because of tropical theileriosis were estimated at US $598,133 for 2 years.

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“…Hastalığın şiddeti endemik stabil bölgelerde oldukça sınırlı olmasına karşın, endemik stabil olmayan bölgelerde ciddi ekonomik kayıplara neden olabilmektedir (2,3).…”

Section: Introductionunclassified

Selection of Genetic Markers to Determine Diversity in Theileria annulata Populations after Recombination

Bilgiç¹,

Ünlü²,

Aksulu³

et al. 2017

TurkiyeParazitolDerg

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ÖZAmaç: Theileria annulata popülasyonlarında rekombinasyon sonrası oluşacak genetik çeşitliliğin ve rekombinasyonun yoğun olduğu kromozomal bölgelerin tespit edilmesi amacıyla kullanılacak polimorfik mini ve mikrosatellite markerlerin belirlenmesidir. Yöntemler: Markerlerin belirlenmesi amacıyla Unipro UGENE programı kullanılmıştır. T. annulata'nın rastgele karıştırılmış genomik dizilimlere göre gerçek DNA diziliminde 10 kat fazla tandem tekrar (TR) belirleyen skor, eşik değer olarak belirlenmiştir. Tekrarlı motif benzerliği %96-100 arasında bulunan, minimum tekrar sayısı en az üç ve minimum tandem boyutu minisatellite bölgeler için en az üç nükleotid ve mikrosatellite bölgeler için en az altı nükleotid olan TR'ler suffix array algoritması kullanılarak tüm genom boyunca taranmıştır. Bulgular: Tarama sonrası 359 minisatellite ve 8973 mikrosatellite bölge belirlenmiştir. TR'ler tüm genom boyunca tek tek taranarak; T. annulata'nın kromozomları üzerindeki yerleşim yerlerine, motiflerin benzerliğine (>%96), tekrar sayıları ile tek bölgeyi temsil etmesine, bölgelerin uzunluklarına (<1500 bp) ve primer tasarlanmaya uygun korunmuş bölgeler içermesine bakılarak mini ve mikrosatellite bölgeler belirlenmiştir. Belirlenen bölgeleri çoğaltmada kullanılacak primerler, korunmuş bölgelerden tasarlanmış ve her bir primer, T. annulata'nın farklı izolatları kullanılarak değerlendirilmiştir. Sonuç: Bu çalışmada, T.annulata popülasyonlarındaki çeşitliliğinin belirlenmesi amacıyla daha önce belirlenen markerlere ilave olarak kullanılabile-cek, farklı kromozomlar üzerinde bulunan toplam 13 mini ve mikrosatellite marker seçilmiştir. Anahtar Kelimeler: Theileria annulata, rekombinasyon, satellit marker Geliş Tarihi: 17.06.2016Kabul Tarihi: 21.12.2016 ABSTRACT Objective: Selecting polymorphic mini-and microsatellite markers to determine genetic diversity and chromosomal regions exhibiting elevated rates of recombination in Theileria annulata populations after recombination. Methods: The Unipro UGENE software was used to select markers. A score at which 10 times more tandem repeats (TRs) were identified in the real DNA sequence than those in the scrambled sequences of T. annulata was used as the cutoff. TRs containing minimum three nucleotides in length for microsatellite and six nucleotides for minisatellite regions and having a repeat motif identity between 96%-100% with the unit size repeated minimum three times were screened through the whole genome using the suffix array algorithm.Results: A total of 359 minisatellites and 8973 microsatellites were identified. TRs were screened one by one through the whole genome; mini-and microsatellites representing a single region and having suitable regions for primer design were selected based on their localization on T. annulata chromosomes, their repeat motif identity (>96%), and their repeat length (<1500 bp). The primers used to amplify selected candidates were designed, and each primer was used to check 27 different isolates of T. annulata. Conclusion: In the present study, a total of 13 po...

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Infection of calves with Theileria annulata in Tunisia: Economic analysis and evaluation of the potential benefit of vaccination

Cited by 70 publications

References 10 publications

Prevalence Study on Tick Infestations of Goat in Lower Shivalik Region of Uttarakhand

Prevalence Study on Tick Infestations of Goat in Lower Shivalik Region of Uttarakhand

Economical impact of tropical theileriosis in the Cappadocia region of Turkey

Selection of Genetic Markers to Determine Diversity in Theileria annulata Populations after Recombination

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