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  • Neurological lesions in cervids: a study in Portugal
    Publication . Pires, Maria A.; Macêdo, J.; Seixas, Fernanda; Gama, Adelina; Alves, Anabela; Pinto, Maria de Lurdes; Pires, Isabel; Matos, Ana Cristina; Figueira, Luis; Lima, Carla; Mendonça, Paula; Carvalho, Paulo; Orge, Leonor
    Brain samples were collected within the project "CWD Risk in Portugal", profiOng the infecOous diseases epidemiological surveillance and screening of chronic wasOng disease (CWD) during cervids hunts. The literature on wild animals´ neuropathological lesions is scarse. This work aims to describe the neuropathological findings in samples collected in deer hunted in Portugal.
  • Mycobacterium avium subsp. paratuberculosis in Wild Boar (Sus scrofa) in Portugal
    Publication . Matos, Ana Cristina; Figueira, Luis; Martins, Maria Helena; Cardoso, Luís; Matos, Manuela; Pinto, Maria de Lurdes; Coelho, Ana Cláudia
    Paratuberculosis, or Johne’s disease, caused by Mycobacterium avium subsp. paratuberculosis (MAP), is a chronic granulomatous enteritis affecting both domestic and wild ruminants. The agent was also found in wild mammals such as wild boar (Sus scrofa); however, the role of wild mammals in the epidemiology of MAP is unclear. During the research period, 941 free-ranging wild boar (S. scrofa) legally hunted in two locations in the central–eastern region of Portugal were examined. Ninety-seven wild boars exhibited one or more gross lesions and were tested for the presence of mycobacterium avium subsp. paratuberculosis using acid-fast staining, mycobacterial culture, polymerase chain reaction (PCR), and histopathological examination. Forty-five animals (46.4%, 95% CI: 36.5–56.3%) were identified as infected, as indicated by positive results in culture and/or PCR. The findings revealed that the most significant risk factor was being a juvenile compared to yearlings and adults (OR = 10.2, 95% CI: 2.2–48.0). Based on our results, 37.9% (n = 11) of the infected animals were considered suitable for human consumption. Our findings offer novel insights into mycobacterial infections in wild boar populations in Portugal and suggest that wild boar could be a source of human infection if zoonotic potential is considered.