8 documents found, page 1 of 1
Serological evidence of West Nile virus in wild birds in Portugal
Loureiro, Filipa; Matos, Ana; Santos Pintado, Cristina Maria Baptista; Cardoso, Luis; Silva, Filiipe; Matos, Manuela; Coelho, Ana CláudiaWest Nile Virus (WNV) has a zoonotic transmission cycle. Avian species are considered the definitive hosts, and mosquitoes and other arthropods are the main vectors. Humans are considered accidental and dead-end hosts, since mammals are unable to efficiently amplify the virus. We aimed at studying serological prevalence of WNV circulation in wild birds in Portugal.
Serological evidence of West Nile Virus infection in horses from the municipali...
Loureiro, Filipa; Pires, Humberto; Cardoso, Luis; Lopes, Ana Patrícia; Fontes, Maria da Conceição; Santos Pintado, Cristina Maria BaptistaWest Nile Virus (WNV) is an RNA virus from the family Flaviviridae. It is transmitted by several genera of mosquitoes, with Cullex spp. as the main vectors identified in Europe and North America. Birds are amplifying agents and important to the transmission cycle, during the viremia period. Equines are considered dead-ends hosts and are recognized as sentinels of the virus in many countries.
Brucella spp. seroprevalence in wild ungulates in Portugal
Pires, Humberto; Matos, Manuela; Cardoso, Luis; Lopes, Ana Patrícia; Fontes, Maria da Conceição; Santos Pintado, Cristina Maria BaptistaBrucella spp. seroprevalence in wild ungulates in Portugal.
Seroprevalence of West Nile Virus in vultures in the Centre region of Portugal
Loureiro, Filipa; Sargo, R.; Sousa, L.; Silva D.; Silva, F.; Lopes, F.; Peñuela, R.; Azorín, B.; Pires, Humberto; Cardoso, Luis; Lopes, Ana PatríciaWest 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, ...
A serological survey of Brucella spp. in red deer (Cervus elaphus) in Portugal
Pires, Humberto; Matos, Manuela; Cardoso, Luis; Lopes, Ana Patrícia; Fontes, Maria da Conceição; Santos Pintado, Cristina Maria BaptistaWildlife has been identified as important sentinels for the surveillance of zoonotic pathogens such Brucella infection. Systematic brucellosis monitoring in wildlife is not demanded by regulatory acts, but several studies have reported the presence of this infection in European countries. In order to investigate the importance of red deer (Cervus elaphus) in the epidemiology of Brucella infection in Portugal, a...
A preliminar study on Brucella spp. seroprevalence in wild boar (Sus scrofa) in...
Pires, Humberto; Matos, Manuela; Cardoso, Luis; Lopes, Ana Patrícia; Fontes, Maria da Conceição; Pintado, CristinaVarious species of the genus Brucella are highly virulent zoonotic agents. Brucella melitensis, B. abortus, and B. suis area broadly spread worldwide and animal brucellosis has a significant economic impact. This zoonotic disease affects both domestic pigs and wild pigs such as wild boar (Sus scrofa) In order to investigate the importance of wild boar (Sus scrofa) in the epidemiology of Brucella infection in Po...
Serological evidence of Coxiella burnetii exposure in hunting dogs in Portugal.
Pires, Humberto; Cardoso, Luis; Lopes, Ana Patrícia; Fontes, Maria da Conceição; Matos, Manuela; Santos Pintado, Cristina Maria BaptistaCoxiella burnetii is a γ-Proteobacteria that is the etiologic agent of Q fever, a worldwide zoonosis. The role of dogs in the transmission of C. burnetii to humans is uncertain, and extensive seroprevalence studies of dogs have previously not been conducted in Portugal. A serologic survey was conducted for antibodies to C. burnetii in a sample of 90 hunting dogs from east-central Portugal, namely the municipali...
Occurrence of Coxiella burnetii in red deer (Cervus elaphus) in Portugal
Pires, Humberto; Cardoso, Luis; Lopes, Ana Patrícia; Fontes, Maria da Conceição; Matos, Manuela; Santos Pintado, Cristina Maria BaptistaOccurrence of Coxiella burnetii in red deer (Cervus elaphus) in Portugal.