31 documents found, page 1 of 4
Molecular evidence of sporadic Coxiella burnetii excretion in sheep milk, centr...
Pires, Humberto; Santos-Silva, Sérgio; Cruz, Andreia V.S.; Cardoso, Luís; Lopes, Ana Patrícia; Pereira, Maria; Nóbrega, Carmen; Mega, CristinaCoxiella 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...
Pulmonary and Gastrointestinal Parasitic Infections in Small Ruminant Autochtho...
Pereira, Maria; Vila-Viçosa, Maria; Coelho, Catarina; Santos, Carla; Esteves, Fernando; Cruz, Rita; Gomes, Liliana; Henriques, Diogo; Vala, HelenaThe 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...
Parasitas Pulmonares em Pequenos Ruminantes: Mais Conhecimento, Melhor Diagnóstico
Aires Pereira, Maria; Mega, Cristina; Garcês, Andreia; Santos, Carla; Vasconcelos-Nóbrega, Carmen; Melo, Carolina; Rosário Coelho, CarolinaA pneumonia parasitária por nematodes da superfamília Trichostrongyloidea e Metastrongyloidea, também conhecida como estrongilose pulmonar, apresenta elevada prevalência nalgumas regiões geográficas, mas tem merecido pouca atenção por parte dos Médicos Veterinários e investigadores [1,2]. Os estudos de prevalência disponíveis assentam predominantemente na deteção de lesões pulmonares em matadouro e no diagnósti...
Crimean-Congo hemorrhagic fever virus circulating among sheep of Portugal: a na...
Mesquita, João; Cruz, Rita; Esteves, Fernando; Santos, Carla; Pousa, Humberto; Coelho, Catarina; Mega, Cristina; Nóbrega, Carmen; Vala, HelenaCrimean-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 Questionnaire-Based Survey on the Long-Term Management of Canine Leishmaniosi...
Pereira, Maria; Santos, Rute; Nóbrega, Carmen; Mega, Cristina; Cruz, Rita; Esteves, Fernando; Santos, Carla; Mesquita, João R.; Vala, HelenaCanine Leishmaniosis (CanL) is a chronic and potentially fatal disease. In economically disadvantaged regions, costs associated with long-term patient monitoring may determine that some owners decline veterinary follow-up of their dogs. This online, questionnaire-based survey aimed to assess how Portuguese veterinary practitioners perform long-term patient monitoring and recognize relapses. More than 50% of res...
Prevalence of Toxoplasma gondii Antibodies and Risk Factor Investigation in Por...
Almeida, Daniela; Santos-Silva, Sérgio; Pereira, Maria; Santos, Carla; Mega, Cristina; Coelho, Catarina; Nóbrega, Carmen; Esteves, Fernando; Cruz, RitaBackground: Toxoplasma gondii is a widespread zoonotic agent that greatly impacts Public Health, being responsible for one of the most important parasitic zoonosis worldwide. T. gondii has a heteroxenous life cycle, with cats being the definitive hosts and all warm-blooded animals, including humans, being intermediate hosts. Veterinary practitioners (VP) may be at a higher risk than the general population for T...
Prevalence of Toxoplasma gondii Antibodies and Risk Factor Investigation in Por...
Almeida, Daniela; Santos-Silva, Sérgio; Pereira, Maria Aires; Santos, Carla; Mega, Cristina; Coelho, Catarina; Nóbrega, Carmen; Esteves, FernandoToxoplasma gondii is a widespread zoonotic agent that greatly impacts Public Health, being responsible for one of the most important parasitic zoonosis worldwide. T. gondii has a heteroxenous life cycle, with cats being the definitive hosts and all warm-blooded animals, including humans, being intermediate hosts. Veterinary practitioners (VP) may be at a higher risk than the general population for T. gondii inf...
Virtual Physiology: A Tool for the 21st Century
Nóbrega, Carmen; Aires Pereira, Maria; Coelho, Catarina; Brás, Isabel; Mega, Cristina; Santos, Carla; Esteves, Fernando; Cruz, RitaVeterinary 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...
A 2-Year Longitudinal Seroepidemiological Evaluation of Toxoplasma gondii Antib...
Almeida, Daniela; Quirino, João; Barradas, Patrícia Ferreira; da Silva, Priscilla Gomes; Pereira, Maria; Cruz, Rita; Santos, Carla; Mega, CristinaBackground: 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 antiT. 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 observed...
Occupationally Acquired Q Fever in Shepherds and Sheep Milk Cheesemakers
Cruz, Rita; Santos, Carla; Esteves, Fernando; Ferreira, Ana Sofia; Nóbrega, Carmen; Mega, Cristina; Albuquerque, Carlos; Teixeira-de-Lemos, EditeQ fever is a zoonosis caused byCoxiella burnetii, and transmission to humans is often associatedwith contact with ovine and caprine livestock. Those exposed to sheep are particularly at high risk of infection.Recent studies show that Q fever is increasing in sheep farms in Portugal raising alerts on spillover to humans.We detected anti-C. burnetiiIgG in shepherds and sheep milk cheesemakers (27 [28.1%] in a tot...