Browsing by Author "Silva, F."
Now showing 1 - 3 of 3
Results Per Page
Sort Options
- Screening wild birds for tick-borne zoonotic pathogens in PortugalPublication . Loureiro, F.; Mesquita, João R.; Cardoso, Luis; Santos-Silva, S.; Moreira, G.; Bento, J. T.; Soeiro, V.; Gonçalves, A.; Silva, F.; Barradas, P. F.; Matos, Ana Cristina; Matos, M.; Coelho, A. C.
- Screening wild birds for tick-borne zoonotic pathogens in PortugalPublication . Loureiro, Filipa; Mesquita, João R.; Cardoso, Luis; Santos-Silva, S.; Moreira, G.; Bento, J. T.; Silva, F.; Barradas, P. F.; Matos, M.; Matos, Ana Cristina; Coelho, A. C.Wild birds may be involved in the transmission of agents of infectious diseases, including zoonoses, a circumstance which raises a number of public and animal health issues. Migratory bird species play a significant role in the introduction of tick-borne pathogens to new geographic areas, contributing to the dissemination of various etiological agents. This preliminary study aimed to assess the occurrence of four potentially zoonotic pathogens (Hepatozoon spp., Borrelia spp., Babesia spp. and Theileria spp.) in the wild birds of Portugal. Blood and tissue samples were taken from 103 birds admitted at wildlife rehabilitation centers. Through the use of conventional PCR, our findings indicate no evidence of the circulation of these pathogens among the studied bird populations in the region. In the One Health context, it is relevant to understand how faraway avian populations play a role in the epidemiology of infectious diseases. Further molecular studies are needed to deepen the knowledge of avian piroplasmosis, borreliosis and hepatozoonosis.
- Seroprevalence of West Nile Virus in vultures in the Centre region of PortugalPublication . Loureiro, Filipa; Sargo, R.; Sousa, L.; Silva D.; Silva, F.; Lopes, F.; Peñuela, R.; Azorín, B.; Pires, Humberto; Cardoso, Luis; Lopes, Ana Patrícia; Fontes, Maria da Conceição; Santos Pintado, Cristina Maria Baptista; Figueira, Luís Manuel Faria; Matos, Manuela; Matos, Ana; Coelho, Ana CláudiaWest Nile Virus (WNV) is a vector-borne pathogen with zoonotic potential widely spread throughout the world. The transmission cycle is maintained by mosquitoes (mainly Culex spp.) and wild birds. Human, equines and other mammals are incidental hosts, whichare unable to amplify the agent in their blood circulation. Two lineages has been identified as disease-causing in humans and other animals: WNV-1 and WNV-2, being the latter more common in Europe.