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This study assesses the levels of <jats:italic>D. immitis<\/jats:italic> exposure in humans from Northern Portugal, to which end, 668 inhabitants of several districts belonging to two different climate areas (Csa: Bragan\u00e7a, Vila Real and Csb: Aveiro, Braga, Porto, Viseu) were tested for anti-<jats:italic>D. immitis<\/jats:italic> and anti-Wolbachia surface proteins (WSP) antibodies. The overall prevalence of seropositivity to both anti-<jats:italic>D. immitis<\/jats:italic> and WSP antibodies was 6.1%, which demonstrated the risk of infection with <jats:italic>D. immitis<\/jats:italic> in humans living in Northern Portugal. This study, carried out in a Western European country, contributes to the characterisation of the risk of infection with <jats:italic>D. immitis<\/jats:italic> among human population in this region of the continent. From a One Health point of view, the results of the current work also support the close relationship between dogs and people as a risk factor for human infection<\/jats:p>","DOI":"10.1017\/s0950268819001687","type":"journal-article","created":{"date-parts":[[2019,9,30]],"date-time":"2019-09-30T22:51:41Z","timestamp":1569883901000},"source":"Crossref","is-referenced-by-count":18,"title":["Exposure of humans to the zoonotic nematode <i>Dirofilaria immitis<\/i> in Northern Portugal"],"prefix":"10.1017","volume":"147","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3873-3886","authenticated-orcid":false,"given":"A. P.","family":"Fontes-Sousa","sequence":"first","affiliation":[]},{"given":"A. 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