Roberta Battistini, Laura Serracca, Elisabetta Razzuoli, Valeria Listorti, Lisa Guardone, Monica Dellepiane, Nicola Pussini, Francesco Brunelli, Simone Peletto, Chiara Beltramo, Carlo Ercolini, Chiara Masotti
The wild boar is an important natural reservoir for the zoonotic transmission of the hepatitis E virus (HEV) around the world. In particular, HEV genotypes 3 and 4 are an emerging problem in industrialized countries, as the number of wild boars has increased, and their territory is ever closer to farms and populated areas. This study describes the HEV prevalence and geographic circulation among wild boar populations in the Ligurian region (Italy) during the period 2019-2022. Liver samples from 849 wild boars were analyzed for HEV RNA using real-time RT-PCR; positive samples were then subjected to sequencing and phylogenetic analysis. Overall, 6.7% of the wild boars were positive for HEV RNA; however, in the last two years, the percentage of positive animals almost doubled. Phylogenetic analysis showed that wild boar HEV sequences belonged to genotype 3 and clustered within subtypes 3a and 3c, and, for the first time in Italy, subtypes 3b and 3m were identified. Interestingly, 13 sequences could not be assigned to a recognized subtype. Furthermore, the results showed different circulations of identified subtypes across the territory. These findings increase the knowledge of HEV-3 heterogeneity in Italy and describe the role of wild boars in maintaining an active viral circulation in the environment.
J Clin Virol. 2019 Nov;120:20-26
[PMID:
31536936]
Food Environ Virol. 2019 Dec;11(4):410-419
[PMID:
31243738]
BMC Infect Dis. 2019 Mar 19;19(1):269
[PMID:
30890143]
J Clin Virol. 2009 Apr;44(4):277-81
[PMID:
19217346]
Transbound Emerg Dis. 2019 Nov;66(6):2462-2473
[PMID:
31336031]
Euro Surveill. 2019 Mar;24(10):
[PMID:
30862337]
BMC Infect Dis. 2015 Oct 22;15:440
[PMID:
26493830]
Transbound Emerg Dis. 2022 Sep;69(5):e1992-e2005
[PMID:
35340119]
Front Microbiol. 2021 Jan 28;11:634430
[PMID:
33584599]
Proc Natl Acad Sci U S A. 2004 Jul 27;101(30):11030-5
[PMID:
15258291]
EFSA J. 2017 Jul 11;15(7):e04886
[PMID:
32625551]
Animals (Basel). 2020 Dec 09;10(12):
[PMID:
33317114]
Viruses. 2019 Aug 06;11(8):
[PMID:
31390784]
Viruses. 2019 Mar 13;11(3):
[PMID:
30871152]
Vet Microbiol. 2017 Dec;212:52-58
[PMID:
29173588]
Rev Med Virol. 2006 Jan-Feb;16(1):5-36
[PMID:
16175650]
Nat Rev Dis Primers. 2017 Nov 16;3:17086
[PMID:
29154369]
Ital J Food Saf. 2020 Apr 06;9(1):8463
[PMID:
32300568]
Int J Food Microbiol. 2021 Jan 2;338:108986
[PMID:
33257099]
Nat Methods. 2012 Jul 30;9(8):772
[PMID:
22847109]
Med Microbiol Immunol. 2017 Feb;206(1):77-81
[PMID:
27770276]
Ital J Food Saf. 2022 Jun 21;11(2):9979
[PMID:
35795462]
J Comp Pathol. 2015 Jul;153(1):1-8
[PMID:
26025105]
Epidemiol Prev. 2021 Jan-Apr;45(1-2):46-53
[PMID:
33884842]
Viruses. 2021 Jun 19;13(6):
[PMID:
34205456]
Res Vet Sci. 2021 Nov 30;142:54-69
[PMID:
34864434]
Food Environ Virol. 2015 Sep;7(3):206-12
[PMID:
26006251]
J Gen Virol. 2022 Sep;103(9):
[PMID:
36170152]
Zoonoses Public Health. 2020 Feb;67(1):62-69
[PMID:
31592576]
Animals (Basel). 2021 Dec 05;11(12):
[PMID:
34944242]
J Wildl Dis. 2020 Apr;56(2):443-446
[PMID:
31658433]
Ecohealth. 2020 Dec;17(4):512-522
[PMID:
33326058]
Heliyon. 2020 Oct 14;6(10):e05110
[PMID:
33088938]
Transbound Emerg Dis. 2019 Sep;66(5):1803-1808
[PMID:
31127865]
Vet Res. 2014 Nov 26;45:121
[PMID:
25421429]
Front Microbiol. 2020 Feb 05;11:137
[PMID:
32117156]
J Gen Virol. 2020 Jul;101(7):692-698
[PMID:
32469300]
Euro Surveill. 2016 Jun 29;22(26):
[PMID:
28681720]
Microorganisms. 2019 Oct 16;7(10):
[PMID:
31623185]
Transbound Emerg Dis. 2022 Sep;69(5):e2541-e2550
[PMID:
35575967]
Transbound Emerg Dis. 2018 Dec;65(6):1749-1756
[PMID:
30207081]
Transbound Emerg Dis. 2019 Mar;66(2):978-985
[PMID:
30597741]
Food Environ Virol. 2021 Jun;13(2):127-145
[PMID:
33738770]
Viruses. 2021 Jun 17;13(6):
[PMID:
34204376]
J Virol Methods. 2006 Jan;131(1):65-71
[PMID:
16125257]
Viruses. 2015 May 22;7(5):2704-26
[PMID:
26008708]
Vet Microbiol. 2018 Oct;224:88-92
[PMID:
30269796]
Food Microbiol. 2019 Sep;82:194-201
[PMID:
31027773]
Viruses. 2016 Aug 20;8(8):
[PMID:
27556478]
J Virol Methods. 2016 Apr;230:18-23
[PMID:
26784284]
Transbound Emerg Dis. 2021 Jul;68(4):2121-2129
[PMID:
33006818]
Food Environ Virol. 2021 Jun;13(2):146-153
[PMID:
33630244]
Int J Food Microbiol. 2022 Jun 16;371:109671
[PMID:
35421716]
Vet Microbiol. 2015 Oct 22;180(1-2):15-21
[PMID:
26344041]
J Clin Microbiol. 2002 Apr;40(4):1326-32
[PMID:
11923352]
Mol Biol Evol. 2016 Jul;33(7):1870-4
[PMID:
27004904]
Pest Manag Sci. 2015 Apr;71(4):492-500
[PMID:
25512181]
Foodborne Pathog Dis. 2019 Mar;16(3):153-165
[PMID:
30481068]
Animals (Basel). 2021 May 31;11(6):
[PMID:
34072795]
Transbound Emerg Dis. 2018 Feb;65(1):e25-e31
[PMID:
28497542]