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            <title xml:lang="en">M. caprae in northern Italy: a comprehensive analysis through whole-genome sequencing on the genetic variability in bovine herds</title>
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              <persName>
                <forename type="first">Cristina</forename>
                <surname>Bertasio</surname>
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                <forename type="first">Valentina</forename>
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              <persName>
                <forename type="first">Giovanni</forename>
                <surname>Parisio</surname>
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              <idno type="halauthorid">3706374-0</idno>
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              <persName>
                <forename type="first">Mariagrazia</forename>
                <surname>Zanoni</surname>
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                <forename type="first">Marco</forename>
                <surname>Tamba</surname>
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                <forename type="first">Laura</forename>
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                <forename type="first">Maria Lodovica</forename>
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              <persName>
                <forename type="first">Giovanni Loris</forename>
                <surname>Alborali</surname>
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              <persName>
                <forename type="first">Daniel</forename>
                <surname>Polzer</surname>
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              <persName>
                <forename type="first">Annette</forename>
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              <persName>
                <forename type="first">Romana</forename>
                <surname>Steinparzer</surname>
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              <persName>
                <forename type="first">Maria Beatrice</forename>
                <surname>Boniotti</surname>
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                <forename>BMC</forename>
                <surname>BMC</surname>
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              <date type="whenSubmitted">2025-08-11 05:11:59</date>
              <date type="whenModified">2025-08-14 03:11:57</date>
              <date type="whenReleased">2025-08-13 07:22:26</date>
              <date type="whenProduced">2025-12</date>
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            <idno type="halRefHtml">&lt;i&gt;Veterinary Research&lt;/i&gt;, 2025, 56 (1), pp.163. &lt;a target="_blank" href="https://dx.doi.org/10.1186/s13567-025-01585-x"&gt;&amp;#x27E8;10.1186/s13567-025-01585-x&amp;#x27E9;&lt;/a&gt;</idno>
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                <title xml:lang="en">M. caprae in northern Italy: a comprehensive analysis through whole-genome sequencing on the genetic variability in bovine herds</title>
                <author role="aut">
                  <persName>
                    <forename type="first">Cristina</forename>
                    <surname>Bertasio</surname>
                  </persName>
                  <idno type="halauthorid">3706372-0</idno>
                </author>
                <author role="crp">
                  <persName>
                    <forename type="first">Valentina</forename>
                    <surname>Carta</surname>
                  </persName>
                  <email type="md5">32816bea35e06f14a3090a597e90fc24</email>
                  <email type="domain">izsler.it</email>
                  <idno type="idhal" notation="numeric">1570576</idno>
                  <idno type="halauthorid" notation="string">3706373-1570576</idno>
                  <idno type="ORCID">https://orcid.org/0000-0003-1054-1348</idno>
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                <author role="aut">
                  <persName>
                    <forename type="first">Giovanni</forename>
                    <surname>Parisio</surname>
                  </persName>
                  <idno type="halauthorid">3706374-0</idno>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Mariagrazia</forename>
                    <surname>Zanoni</surname>
                  </persName>
                  <idno type="halauthorid">1011412-0</idno>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Marco</forename>
                    <surname>Tamba</surname>
                  </persName>
                  <idno type="halauthorid">2388816-0</idno>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Laura</forename>
                    <surname>Mazzera</surname>
                  </persName>
                  <idno type="halauthorid">3706375-0</idno>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Erika</forename>
                    <surname>Scaltriti</surname>
                  </persName>
                  <idno type="halauthorid">2273249-0</idno>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Maria Lodovica</forename>
                    <surname>Pacciarini</surname>
                  </persName>
                  <idno type="halauthorid">2938228-0</idno>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Giovanni Loris</forename>
                    <surname>Alborali</surname>
                  </persName>
                  <idno type="halauthorid">3706376-0</idno>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Daniel</forename>
                    <surname>Polzer</surname>
                  </persName>
                  <idno type="halauthorid">3512487-0</idno>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Annette</forename>
                    <surname>Nigsch</surname>
                  </persName>
                  <idno type="halauthorid">3706377-0</idno>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Romana</forename>
                    <surname>Steinparzer</surname>
                  </persName>
                  <idno type="halauthorid">3706378-0</idno>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Maria Beatrice</forename>
                    <surname>Boniotti</surname>
                  </persName>
                  <idno type="halauthorid">3706379-0</idno>
                </author>
              </analytic>
              <monogr>
                <idno type="halJournalId" status="VALID">19840</idno>
                <idno type="issn">0928-4249</idno>
                <idno type="eissn">1297-9716</idno>
                <title level="j">Veterinary Research</title>
                <imprint>
                  <publisher>BioMed Central</publisher>
                  <biblScope unit="volume">56</biblScope>
                  <biblScope unit="issue">1</biblScope>
                  <biblScope unit="pp">163</biblScope>
                  <date type="datePub">2025-12</date>
                  <date type="dateEpub">2025</date>
                </imprint>
              </monogr>
              <idno type="doi">10.1186/s13567-025-01585-x</idno>
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              <keywords scheme="author">
                <term xml:lang="en">Public Health and Health Services</term>
                <term xml:lang="en">Medical and Health Sciences</term>
                <term xml:lang="en">spoligotypes</term>
                <term xml:lang="en">phylogeny</term>
                <term xml:lang="en">bovine tuberculosis</term>
                <term xml:lang="en">VNTR-MIRU genotypes</term>
                <term xml:lang="en">SNP</term>
                <term xml:lang="en">whole genome sequencing</term>
                <term xml:lang="en">Mycobacterium caprae</term>
              </keywords>
              <classCode scheme="halDomain" n="sdv">Life Sciences [q-bio]</classCode>
              <classCode scheme="halTypology" n="ART">Journal articles</classCode>
              <classCode scheme="halOldTypology" n="ART">Journal articles</classCode>
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              <p>AbstractMycobacterium (M.) bovis and M. caprae are the causative agents of bovine tuberculosis (bTB), which is still a concern due to its health implications and economic impact. Although M. caprae is less prevalent than M. bovis among bovine tuberculosis cases, it has a significant impact on animal health especially in Europe, where it has been isolated from a range of hosts. Starting from spoligotyping and the MIRU-VNTR profile specifically associated with the Lechtal subgroup we decided to process a selection of Italian M. caprae isolates using whole genome sequencing (WGS) to define the phylogenetic relationships between isolates and deepen the understanding of this public health issue. In this study, 20 outbreaks of bovine tuberculosis caused by M. caprae in northern Italy were retrospectively investigated by interpreting and validating WGS results with available epidemiological information. Genomes of 34 Italian strains, with a known and traditionally typed genotype, isolated between 2001 and 2022 from 21 bovine farms, with 12 isolates from Austria, were analyzed focusing on single nucleotide polymorphisms (SNP) to derive evolutionary relationships, pairing with the tracing of infections, suggested by the epidemiological contacts. The results outline possible connections between outbreaks, which caused the spread of the infection, obtaining two clusters differing by 6–16 SNP pairwise, overlapping with the territory distribution of the herds between two different Italian regions. Epidemiological information and phylogeny revealed that M. caprae was probably introduced in northern Italy from Austria and/or Germany, through separate and independent events for the two Italian clusters. The complex approach of integrating WGS data with epidemiological information proved to be useful in delineating likely transmission chains and identifying the possible sources of infection, showing how NGS is a powerful tool to support epidemiological investigations.</p>
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