Analyzing the genetic diversity of teschoviruses in Spanish pig populations using complete VP1 sequences

Porcine teschovirus in wild boars in Hungary

“…The fecal samples that were analyzed were collected from clinically healthy wild boar piglets, which could indicate that this PTV does not cause illness with manifested symptoms in the wild boars tested, which is similar to what has been reported recently for other PTV-infected domestic pigs [4, 13, 18]. However, the presence of the same serotypes (e.g., PTV-6 and -11) in field isolates collected from domestic swine without any clinical symptoms and swine with polioencephalomyelitis could indicate that the same PTV serotype can replicate with or without causing manifested symptoms [24].…”

“…Outbreaks of “teschovirus encephalomyelitis” were also reported recently in several countries, e.g., Ukraine in 1996–2005, Russia in 2004, Madagascar in 2004–2005, Belarus in 2005 and Haiti in 2008–2009 [7, 18]. The genetic diversity and incidence of currently circulating PTVs is well studied in domestic pig populations [4, 13] but not in wild boars, where only the presence of viruses that are antigenically related to PTV is known based on a report from 1950 [14]. …”

“…The genus Teschovirus currently includes 12 serotypes (PTV-1 to -12) [4, 24]. The majority of PTV serotypes are not pathogenic and circulate worldwide in healthy domestic pigs [4, 11, 13], but PTVs can be associated with a variety of clinical manifestations, e.g., reproductive disorders [6, 11], diarrhea [8, 19], and respiratory disease [16, 25].…”

“…The genus Teschovirus currently includes 12 serotypes (PTV-1 to -12) [4, 24]. The majority of PTV serotypes are not pathogenic and circulate worldwide in healthy domestic pigs [4, 11, 13], but PTVs can be associated with a variety of clinical manifestations, e.g., reproductive disorders [6, 11], diarrhea [8, 19], and respiratory disease [16, 25]. In addition to these relatively mild PTV-associated diseases, the syndrome called “teschovirus encephalomyelitis” or Teschen disease [22] caused by virulent strains (e.g., Teschen [AF231769] or Haiti/2008 [GQ914053]) of PTV-1 is currently a rare disease, although severe outbreaks with large economic losses were reported in Europe from 1929 to the 1960s [12].…”

Molecular survey of porcine teschovirus, porcine sapelovirus, and enterovirus G in captive wild boars (Sus scrofa scrofa) of Paraná state, Brazil

“…The majorities of the PTV, PSV, and EV-G serotypes are non-pathogenic and circulate worldwide in asymptomatic domestic pigs (Cano-Gómez et al 2011, Prodělalová 2012). However, depending on the virus serotype and infection conditions, these picornaviruses may be considered important etiological agents of enteric, respiratory, reproductive, or neurological disorders (Bangari et al 2010, Ventura et al 2013.…”