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Drobeniuc J.,Centers for Disease Control and Prevention | Meng J.,Centers for Disease Control and Prevention | Meng J.,Nanjing Southeast University | Reuter G.,ANTSZ Regional Institute of State Public Health Service | And 5 more authors.
Clinical Infectious Diseases | Year: 2010

Six immunoassays for detecting immunoglobulin M antibodies to hepatitis E virus were evaluated. Serum samples representing acute infection by each of the 4 viral genotypes as well as nonacute hepatitis E virus infection constituted the test panels. Diagnostic sensitivities and specificities as well as interassay agreement varied widely. Analytical sensitivity limits also were determined and were found to be particularly disparate. © 2010 by the Infectious Diseases Society of America. All rights reserved. Source


Boros A.,ANTSZ Regional Institute of State Public Health Service | Nemes C.,Veterinary Diagnostic | Pankovics P.,ANTSZ Regional Institute of State Public Health Service | Kapusinszky B.,Blood Systems Research Institute | And 4 more authors.
Journal of General Virology | Year: 2012

Members of the family Picornaviridae are important pathogens of humans and animals, although compared with the thousands of known bird species (>10 000), only a few (n = 11) picornaviruses have been identified from avian sources. This study reports the metagenomic detection and complete genome characterization of a novel turkey picornavirus from faecal samples collected from eight turkey farms in Hungary. Using RT-PCR, both healthy (two of three) and affected (seven of eight) commercial turkeys with enteric and/or stunting syndrome were shown to be shedding viruses in seven (88 %) of the eight farms. The viral genome sequence (turkey/M176/2011/HUN; GenBank accession no. JQ691613) shows a high degree of amino acid sequence identity (96 %) to the partial P3 genome region of a picornavirus reported recently in turkey and chickens from the USA and probably belongs to the same species. In the P1 and P2 regions, turkey/M176/2011/HUN is related most closely to, but distinct from, the kobuviruses and turdivirus 1. Complete genome analysis revealed the presence of characteristic picornaviral amino acid motifs, a potential type II-like 5′ UTR internal ribosome entry site (first identified among avian-origin picornaviruses) and a conserved, 48 nt long 'barbell-like' structure found at the 3′ UTR of turkey/M176/2011/HUN and members of the picornavirus genera Avihepatovirus and Kobuvirus. The general presence of turkey picornavirus - a novel picornavirus species - in faecal samples from healthy and affected turkeys in Hungary and in the USA suggests the worldwide occurrence and endemic circulation of this virus in turkey farms. Further studies are needed to investigate the aetiological role and pathogenic potential of this picornavirus in food animals. © 2012 SGM. Source


Reuter G.,ANTSZ Regional Institute of State Public Health Service | Reuter G.,Blood Systems Research Institute | Boros A.,ANTSZ Regional Institute of State Public Health Service | Kiss T.,Hungarian Ornithological and Nature Conservation Society | And 3 more authors.
Archives of Virology | Year: 2014

Mosavirus (mosavirus A1, M-7/2010/USA, JF973687), a novel picornavirus, was found in a canyon mouse (Peromyscus crinitus) in the USA in 2010. It represents a novel species (Mosavirus A) in a novel genus (Mosavirus) in the family Picornaviridae. In this study, the first complete genome sequence of another mosavirus, SZAL6-MoV/2011/HUN (KF958461), was determined from one out of 18 fecal samples from an Afro-Palearctic migratory bird, the European roller (Coracias garrulus). The complete genome of SZAL6-MoV/2011/HUN is 8385 nt long (from poly(C) tract to poly(A) tail), contains a 646-nt-long 5′UTR that forms a type II IRES, and encodes a potential 2550-aa-long polyprotein precursor including an aphthovirus-like Lpro-proteinase, a small aphthovirus-like 2ANPG↓P, and two 3BVPgproteins. SZAL6-MoV/2011/HUN has 67 %, 74 %, and 76 % aa sequence identity in the P1, P2, and P3 region, respectively, to M-7/2010/USA and represents a second mosavirus type, mosavirus A2. © 2014, Springer-Verlag Wien. Source


Pankovics P.,ANTSZ Regional Institute of State Public Health Service | Boros A.,ANTSZ Regional Institute of State Public Health Service | Kiss T.,Hungarian Ornithological and Nature Conservation Society | Reuter G.,ANTSZ Regional Institute of State Public Health Service
Archives of Virology | Year: 2015

The genus Kobuvirus (Picornaviridae) consists of three species, Aichivirus A (e.g., Aichi virus, which infects humans), Aichivirus B and Aichivirus C. Kobuvirus have not been detected in non-mammal species including birds. In this study, a novel kobuvirus was identified in 3 (17 %) out of 18 faecal samples collected from European rollers (Coracias garrulus) in Hungary. The complete genome sequence of strain SZAL6-KoV/2011/HUN (KJ934637), which was determined using a novel 5′/3′ RACE method (dsRNA-RACE) involving a double-stranded (ds)RNA intermediate, has a type-V IRES at the 5′ end and a cis-acting element (CRE) in the 3C gene and encodes L and 2AH-box/NC proteins, but it does not contain the sequence forming a “barbell-like” secondary RNA structure in the 3′UTR. SZAL6-KoV/2011/HUN has 72 %, 73 %, and 81 % amino acid sequence identity to the P1, P2, and P3 protein, respectively, of Aichi virus. Evolutionary analysis showed that SZAL6-KoV/2011/HUN shares a common ancestor with other kobuviruses but belongs to a more ancient lineage in the species Aichivirus A. Investigation of the known kobuviruses in different animals and discovery of novel kobuviruses in potential host species helps to clarify the evolutionary connection and zoonotic potential of kobuviruses. © 2014, Springer-Verlag Wien. Source


Boros A.,ANTSZ Regional Institute of State Public Health Service | Pankovics P.,ANTSZ Regional Institute of State Public Health Service | Reuter G.,ANTSZ Regional Institute of State Public Health Service
Infection, Genetics and Evolution | Year: 2011

Porcine enteroviruses (PEVs) of genus Enterovirus are small, non-enveloped viruses with single-stranded, positive sense genomic RNA, belonging to the family Picornaviridae. The discovery of two distinct serotypes (PEV9 and 10) was first reported in 1979. Despite the sporadic detection and partial genome sequences of these viruses our knowledge about the prevalence and molecular epidemiology of PEV types in domestic pigs is very deficient.In this study, we identified a novel PEV from fecal samples of clinically healthy pigs (Sus scrofa domestica) in Hungary by RT-PCR using human enterovirus generic primer pairs for 5′UTR region, with subsequent partial VP1 and complete genome sequencing and phylogenetic analysis. Among 45 fecal and blood sample pairs collected at the same farm from domestic pigs divided into three age groups (10 days, 4 weeks, and 3 months of age, N= 15 each group) six (40%) of the 15 fecal samples of 10-day-old pigs were enterovirus-positive. PEV was not detected in serum samples. Sequence- and phylogenetic analysis of the complete genome of swine/K23/2008/HUN (HQ702854) show relationship to PEV strains but it is separated from the PEV9 and 10, especially in structural regions. Swine/K23/2008/HUN has average of 77 and 75% amino acid identity in the P1 region, and only 61% in VP1 region to PEV9 and 10, respectively. The partial VP1 sequences of the Hungarian PEV strains show 99% nucleotide identity compared to each other.PEVs could be capable of at least local endemic spread among newborn piglets and cause no clinical symptoms or viraemia. Sequence data indicates that the Hungarian PEV strain belongs to a novel PEV. To clarify the taxonomic confusion related to PEV - as a consequence of recent extensive taxonomic changes among porcine enteric picornaviruses - we propose that PEV9 and PEV10 should be reclassified as PEV1 and PEV2. In this classification swine/K23/2008/HUN represents PEV3. © 2011 Elsevier B.V. Source

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