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  • 1 Hungarian Academy of Sciences, Hungária krt. 21, H-1143 Budapest, Hungary
  • | 2 National Center for Epidemiology, Budapest, Hungary
  • | # Ceva-Phylaxia, Szállás u. 5, H-1107 Budapest, Hungary
  • | National Food Chain Safety Office, Szállás u. 8, H-1107 Budapest, Hungary
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Enterotoxigenic E. coli (ETEC) bacteria frequently cause watery diarrhoea in newborn and weaned pigs. Plasmids carrying genes of different enterotoxins and fimbrial adhesins, as well as plasmids conferring antimicrobial resistance are of prime importance in the epidemiology and pathogenesis of ETEC. Recent studies have revealed the significance of the porcine ETEC plasmid pTC, carrying tetracycline resistance gene tet(B) with enterotoxin genes. In contrast, the role of tet(A) plasmids in transferring resistance of porcine ETEC is less understood. The objective of the present study was to provide a comparative analysis of antimicrobial resistance and virulence gene profiles of porcine post-weaning ETEC strains representing pork-producing areas in Central Europe and in the USA, with special attention to plasmids carrying the tet(A) gene. Antimicrobial resistance phenotypes and genotypes of 87 porcine ETEC strains isolated from cases of post-weaning diarrhoea in Austria, the Czech Republic, Hungary and the Midwest USA was determined by disk diffusion and by PCR. Central European strains carrying tet(A) or tet(B) were further subjected to molecular characterisation of their tet plasmids. Results indicated that > 90% of the ETEC strains shared a common multidrug resistant (MDR) pattern of sulphamethoxazole (91%), tetracycline (84%) and streptomycin (80%) resistance. Tetracycline resistance was most frequently determined by the tet(B) gene (38%), while tet(A) was identified in 26% of all isolates with wide ranges for both tet gene types between some countries and with class 1 integrons and resistance genes co-transferred by conjugation. The virulence gene profiles included enterotoxin genes (lt, sta and/or stb), as well as adhesin genes (k88/f4, f18). Characterisation of two representative tet(A) plasmids of porcine F18+ ETEC from Central Europe revealed that the IncF plasmid (pES11732) of the Czech strain (~120 kb) carried tet(A) in association with catA1 for chloramphenicol resistance. The IncI1 plasmid (pES2172) of the Hungarian strain (~138 kb) carried tet(A) gene and a class 1 integron with an unusual variable region of 2,735 bp composed by two gene cassettes: estX-aadA1 encoding for streptothricin-spectinomycin/streptomycin resistance exemplifying simultaneous recruitment, assembly and transfer of multidrug resistance genes by the tet(A) plasmid of porcine ETEC. By this we provide the first description of IncF and IncI1 type plasmids of F18+ porcine enterotoxigenic E. coli responsible for cotransfer of the tet(A) gene with multidrug resistance. Additionally, the unusual determinant estX, encoding for streptothricin resistance, is first reported here in porcine enterotoxigenic E. coli.

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Senior editors

Editor-in-Chief: Mária BENKŐ

Managing Editor: András SZÉKELY

Editorial Board

  • Béla DÉNES (National Food Chain Safety Office, Budapest Hungary)
  • Edit ESZTERBAUER (Veterinary Medical Research Institute, Budapest, Hungary)
  • Hedvig FÉBEL (National Agricultural Innovation Centre, Herceghalom, Hungary)
  • László FODOR (University of Veterinary Medicine, Budapest, Hungary)
  • Balázs HARRACH (Veterinary Medical Research Institute, Budapest, Hungary)
  • Peter MASSÁNYI (Slovak University of Agriculture in Nitra, Nitra, Slovak Republic)
  • Béla NAGY (Veterinary Medical Research Institute, Budapest, Hungary)
  • Tibor NÉMETH (University of Veterinary Medicine, Budapest, Hungary)
  • Zsuzsanna NEOGRÁDY (University of Veterinary Medicine, Budapest, Hungary)
  • Alessandra PELAGALLI (University of Naples Federico II, Naples, Italy)
  • Kurt PFISTER (Ludwig-Maximilians-University of Munich, Munich, Germany)
  • László SOLTI (University of Veterinary Medicine, Budapest, Hungary)
  • József SZABÓ (University of Veterinary Medicine, Budapest, Hungary)
  • Péter VAJDOVICH (University of Veterinary Medicine, Budapest, Hungary)
  • János VARGA (University of Veterinary Medicine, Budapest, Hungary)
  • Štefan VILČEK (University of Veterinary Medicine in Kosice, Kosice, Slovak Republic)
  • Károly VÖRÖS (University of Veterinary Medicine, Budapest, Hungary)
  • Herbert WEISSENBÖCK (University of Veterinary Medicine, Vienna, Austria)
  • Attila ZSARNOVSZKY (Szent István University, Gödöllő, Hungary)

ACTA VETERINARIA HUNGARICA
Institute for Veterinary Medical Research
Centre for Agricultural Research
Hungarian Academy of Sciences
P.O. Box 18, H-1581 Budapest, Hungary
Phone: (36 1) 467 4081 (ed.-in-chief) or (36 1) 213 9793 (editor) Fax: (36 1) 467 4076 (ed.-in-chief) or (36 1) 213 9793

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2020  
Total Cites 987
WoS
Journal
Impact Factor
0,955
Rank by Veterinary Sciences 101/146 (Q3)
Impact Factor  
Impact Factor 0,920
without
Journal Self Cites
5 Year 1,164
Impact Factor
Journal  0,57
Citation Indicator  
Rank by Journal  Veterinary Sciences 93/166 (Q3)
Citation Indicator   
Citable 49
Items
Total 49
Articles
Total 0
Reviews
Scimago 33
H-index
Scimago 0,395
Journal Rank
Scimago Veterinary (miscellaneous) Q2
Quartile Score  
Scopus 355/217=1,6
Scite Score  
Scopus General Veterinary 73/183 (Q2)
Scite Score Rank  
Scopus 0,565
SNIP  
Days from  145
sumbission  
to acceptance  
Days from  150
acceptance  
to publication  
Acceptance 19%
Rate

 

2019  
Total Cites
WoS
798
Impact Factor 0,991
Impact Factor
without
Journal Self Cites
0,897
5 Year
Impact Factor
1,092
Immediacy
Index
0,119
Citable
Items
59
Total
Articles
59
Total
Reviews
0
Cited
Half-Life
9,1
Citing
Half-Life
9,2
Eigenfactor
Score
0,00080
Article Influence
Score
0,253
% Articles
in
Citable Items
100,00
Normalized
Eigenfactor
0,09791
Average
IF
Percentile
42,606
Scimago
H-index
32
Scimago
Journal Rank
0,372
Scopus
Scite Score
335/213=1,6
Scopus
Scite Score Rank
General Veterinary 62/178 (Q2)
Scopus
SNIP
0,634
Acceptance
Rate
18%

 

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Acta Veterinaria Hungarica
Language English
Size A4
Year of
Foundation
1951
Publication
Programme
2020 Volume 68
Volumes
per Year
1
Issues
per Year
4
Founder Magyar Tudományos Akadémia
Founder's
Address
H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-6290 (Print)
ISSN 1588-2705 (Online)

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