First description of swine torque teno virus (TTV) and detection of a new genogroup in Hungary: Short communication

Takács, Mária and Dencs, Ágnes and Csiszár, Csenge and Hettmann, Andrea and Rusvai, Erzsébet and Szomor, Katalin and Pálfi, Vilmos and Nagy, Béla (2008) First description of swine torque teno virus (TTV) and detection of a new genogroup in Hungary: Short communication. Acta Veterinaria Hungarica, 56 (4). pp. 547-553. ISSN 0236-6290

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Abstract

Torque teno virus (TTV) belongs to the floating genus of Anellovirus . It was discovered in a human patient, and later it was also found in animals including pigs. The aim of this study was to investigate the presence and estimate the prevalence of swine TTV in Hungarian pig herds for the first time, and to characterise the viruses found. Serum samples of 82 adult swine from 13 piggeries and 44 weaned pigs from one large herd were tested by PCR for the presence of TTV DNA. Viral DNA was found in 30% of the adult swine and 73% of the weaned pigs tested. Liver and intestine of weaned pigs were also tested and found to be infected at a lower rate. The TTV sequences found in sera and intestines were similar and could be clustered as swine genogroup 1. However, the sequences derived from one liver were remarkably different from all other known genogroups and seemed to represent a new genogroup.

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