First description of swine torque teno virus (TTV) and detection of a new genogroup in Hungary: Short communication
2008
Takács, Mária | Dencs, Ágnes | Csiszár, Csenge | Hettmann, Andrea | Rusvai, Erzsébet | Szomor, Katalin N. | Pálfi, Vilmos | Nagy, Béla
Torque teno virus (TTV) belongs to the floating genus of <i>Anellovirus</i> . 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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