6 documents found, page 1 of 1
Pulmonary and Gastrointestinal Parasitic Infections in Small Ruminant Autochtho...
Pereira, MA; Vila-Viçosa, MJ; Coelho, C; Santos, C; Esteves, F; Cruz, R; Gomes, L; Henriques, D; Vala, H; Nóbrega, C; Mega, AC; Melo, C; Malva, MThe production of small ruminant autochthonous breeds in the Centre region of Portugal is practiced in a semi-extensive husbandry system, exposing animals to parasitic infections. The main objective of this study was to estimate the prevalence of lungworm infection and identify risk factors. Fecal samples of 203 goats and 208 sheep from 30 herds were collected per rectum and subjected to the modified Baermann t...
Molecular evidence of sporadic Coxiella burnetii excretion in sheep milk, centr...
Pires, H; Santos-Silva, S; Cruz, AVS; Cardoso, L; Lopes, AP; Pereira, MA; Nóbrega, C; Mega, AC; Santos, C; Cruz, R; Esteves, F; Vala, H; Matos, ACCoxiella burnetii is the etiologic agent of Q fever, a worldwide zoonosis. Cattle, sheep and goats are considered the main reservoirs of the disease. Transmission to humans occurs mainly through the inhalation of infectious aerosols from milk, faeces, urine, and birth products from infected ruminants. In this study, a 2-year longitudinal approach was performed to ascertain the excretion of C. burnetii in bulk t...
Virtual physiology: a tool for the 21st Century
Nóbrega, C; Pereira, MA; Coelho C; Brás, C; Mega, AC; Santos, C; Esteves, F; Cruz, R; Faustino-Rocha, AI; Oliveira, PA; Mesquita, J; Vala, HVeterinary physiology is a basic curricular unit for every course within the veterinary field. It is mandatory to understand how the animal body works, and what to expect of a healthy body, in order to recognize any misfunction, and to be able to treat it. Classic physiology teaching involves wet labs, much equipment, many reagents, some animals, and a lot of time. But times are changing. In the 21st century, i...
Crimean-Congo hemorrhagic fever virus circulating among sheep of Portugal: a na...
Mesquita, JR; Cruz, R; Esteves, F; Santos, C; Pousa, H; Coelho, C; Mega, AC; Nóbrega, C; Vala, H; Peyrefitte, CN; Nascimento, MSJ; Barradas, PFCrimean-Congo hemorrhagic fever virus (CCHFV) is a widespread zoonotic pathogen that can cause mild to severe hemorrhagic disease in humans. CCHFV may be transmitted through direct contact with tissue or blood of viremic animals; however, the primary transmission route is through infected tick bites. CCHFV RNA has been detected in ticks feeding on domestic and wild animals in western Spain, suggesting an establ...
A 2-Year Longitudinal Seroepidemiological Evaluation of Toxoplasma gondii Antib...
Almeida, D; Quirino, J; Barradas, PF; da Silva, PG; Pereira, M; Cruz, R; Santos, C; Mega, AC; Esteves, F; Nóbrega, C; Vala, H; Gärtner, F; Amorim, I(1) Background: Toxoplasma gondii is an important zoonosis and one of the major causes of abortion in sheep worldwide. (2) Methods: We performed a 2-year longitudinal serological anti-T. gondii IgG screening on a cohort of a spatially confined population of a Portuguese autochthonous sheep breed in central Portugal. (3) Results: From the screening of the 2015 and 2016 sera, an increase of seroprevalence was obs...
Prospective Serosurvey of Coxiella burnetii Antibodies in Selected Sheep of Por...
Cruz, R; Esteves, F; Vasconcelos-Nóbrega, C; Santos, C; Ferreira, AS; Mega, AC; Coelho, AC; Vala, H; Mesquita, JRQ fever is a zoonotic disease caused by Coxiella burnetii that is highly prevalent across the world. In this study, a prospective serosurvey was performed to study C. burnetii circulation in a population of sheep in the central region of Portugal. Blood from a representative sample of 168 animals was drawn in both 2015 and 2016, and sera were tested for IgG anti-C. burnetii by EIA. In 2015, 7.7% (13/168) animal...