Fernando Esteves

ORCID: 0000-0003-0589-0746
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About
Contact & Profiles
Research Areas
  • Vector-Borne Animal Diseases
  • Viral Infections and Vectors
  • Vector-borne infectious diseases
  • Helminth infection and control
  • Animal Disease Management and Epidemiology
  • Veterinary Oncology Research
  • Aortic aneurysm repair treatments
  • Infectious Diseases and Mycology
  • Parasitic Infections and Diagnostics
  • Vascular Procedures and Complications
  • Herpesvirus Infections and Treatments
  • Agriculture and Farm Safety
  • Parasites and Host Interactions
  • Liver Disease and Transplantation
  • Toxoplasma gondii Research Studies
  • Cardiac, Anesthesia and Surgical Outcomes
  • Parasite Biology and Host Interactions
  • Clinical Laboratory Practices and Quality Control
  • Aortic Disease and Treatment Approaches
  • Abdominal Surgery and Complications
  • Oral and Maxillofacial Pathology
  • T-cell and Retrovirus Studies
  • Viral gastroenteritis research and epidemiology
  • Aortic Thrombus and Embolism
  • Science, Technology, and Education in Latin America

Polytechnic Institute of Viseu
2011-2025

Frederick S. Pardee RAND Graduate School
2024

Inter-American Development Bank
2023

Research Center for Natural Resources, Environment and Society
2021-2022

Wollo University
2020

Universidade do Porto
2017

Nova Medical (United States)
2015

Irmandade da Santa Casa de Misericórdia de São Paulo
2011

Emory and Henry College
2009

Faculdade de Ciências Médicas da Santa Casa de São Paulo
2003

Research on endoparasites in pet dogs has been growing, but shepherd have largely overlooked. These frequently share close proximity not only with sheep, which are reservoirs of zoonotic subtypes Blastocystis, also their owners. This contact increases the potential for to act as intermediates transmission Blastocystis. To clarify role these this parasite, study investigated presence Blastocystis dogs. Stool samples from Portuguese were analyzed using SYBR-Green-based real-time PCR and...

10.3390/vetsci12040325 article EN cc-by Veterinary Sciences 2025-04-02

Angiokeratoma is described by various authors as a rare variant of the hemangioma in dog, characterized vascular component, like all types neoplasms, but also an epithelial component. A case angiokeratoma male 8-year-old dog. The tumor was located heavily pigmented skin on anterior surface front limb and not more usual previously locations, eyelid conjunctiva. Microscopic examination revealed well-circumscribed mass with irregular hyperplasia epidermis dilated spaces filled blood superficial dermis.

10.1354/vp.38-3-324 article EN Veterinary Pathology 2001-05-01

Hepatitis E virus (HEV) is an enteric RNA from the family Hepeviridae with five genotypes (genotypes 1–4 and 7) known to infect humans. HEV infection have a zoonotic swine origin in industrialized countries. The role of pigs wild boars as major reservoirs for human today well-established; however, list new animal ever-expanding strains are continuously being found broad host range. recent detection sheep stools brings concerns on possibility transmission these animals humans, particularly...

10.1111/tbed.13524 article EN Transboundary and Emerging Diseases 2020-02-24

Weed control in vineyards demands regular interventions that currently consist of the use machinery, such as plows and brush-cutters, application herbicides. These methods have several drawbacks, including cost, chemical pollution, emission greenhouse gases. The animals to weed vineyards, usually ovines, is an ancestral, environmentally friendly, sustainable practice was abandoned because scarcity cost shepherds, which were essential for preventing from damaging vines grapes. SheepIT project...

10.3390/ani11092625 article EN cc-by Animals 2021-09-07

Toxoplasmosis is a worldwide zoonotic disease with different and complex routes for transmission. Workers occupationally exposed to animals or raw meat viscera (WOE) may be at more risk than the general population, however conflicting data exist on of developing toxoplasmosis due this close contact. To add knowledge topic, aim present study was ascertain if WOE were likely anti-T. gondii IgG seropositive population as well factors T. infection such professional activity, gender, age, years...

10.3390/pathogens11050603 article EN cc-by Pathogens 2022-05-22

Q fever is an almost global zoonotic disease caused by Coxiella burnetii. Human infections can produce acute and chronic that lead to abortions stillbirths in pregnant women, usually infected the inhalation of C. burnetii-contaminated aerosols or through consumption contaminated products. Sheep are one primary animal reservoirs with being associated vast shedding bacteria placentas, feces, milk, birth fluids. Although neglected past, recent outbreaks sheep origin have alerted public...

10.1089/vbz.2018.2294 article EN Vector-Borne and Zoonotic Diseases 2018-07-03

In the current article aims for a constructive way forward in Drug-Induced Liver Injury (DILI) are to highlight most important priorities research and clinical science, therefore supporting more informed, focused, better funded future European DILI research. This Roadmap identify key challenges, define shared vision across all stakeholders opportunities overcome these challenges propose high-quality program achieve progress on prediction, prevention, diagnosis management of this condition...

10.1016/j.phrs.2023.107046 article EN cc-by-nc-nd Pharmacological Research 2023-12-28

The production of small ruminant autochthonous breeds in the Centre region Portugal is practiced a semi-extensive husbandry system, exposing animals to parasitic infections. main objective this study was estimate prevalence lungworm infection and identify risk factors. Fecal samples 203 goats 208 sheep from 30 herds were collected per rectum subjected modified Baermann test. overall 57.7%, significantly higher (95.6%) than (20.7%) (p < 0.001). According binary logistic regression model,...

10.3390/ani14081241 article EN cc-by Animals 2024-04-21

Abstract Coxiella burnetii is the etiologic agent of Q fever, a worldwide zoonosis. Cattle, sheep and goats are considered main reservoirs disease. Transmission to humans occurs mainly through inhalation infectious aerosols from milk, faeces, urine, birth products infected ruminants. In this study, 2-year longitudinal approach was performed ascertain excretion C. in bulk tank milk samples mountain plateau central Portugal, with sampling conducted during years 2015 2016. From total 156 tested...

10.1007/s11259-024-10389-x article EN cc-by Veterinary Research Communications 2024-04-24

Between November and December of 2014, a serosurvey was set up to evaluate the presence Schmallenberg virus (SBV) antibodies in sheep Portugal. Sera (n = 1068) were tested using an indirect enzyme linked immunosorbent assay (ID Screen(®) indirect, IDvet Innovative Diagnostics, Montpellier, France). The estimated occurrence immunogobulin G (IgG) against SBV Portugal 12.8% (95% confidence interval 11.0-15.0%). This is first study reporting

10.1089/vbz.2015.1859 article EN Vector-Borne and Zoonotic Diseases 2016-01-01

Q fever is a worldwide zoonotic infectious disease caused by Coxiella burnetii and sheep goats are known to be the main reservoir for human infection. This study describes epidemiological laboratory findings of C. outbreaks affecting goat flocks also provides results prospective serosurvey in bulk tank milk samples assess circulation population living close contact Central Portugal. In epizooties, was identified tissues resulting abortions qPCR. As serological survey, 10.2% (95%CI: 4.5-19.2)...

10.1111/tbed.12913 article EN Transboundary and Emerging Diseases 2018-05-25

Canine 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 practitioners perform recognize relapses. More than 50% respondents reported 50-100% dog declared financial restraints. Hence, in these circumstances, most only performed clinical...

10.3390/ani12060731 article EN cc-by Animals 2022-03-14

Diagnosis of parasitic infections in animals is an interesting task that can be developed by veterinary nurses. To perform direct identification parasites, particularly ova present faeces, it possible to use faecal smears, flotation and sedimentation tests. Faecal fast inexpensive, quickly implemented as a measure for infection control. Herewith we describe the Willis method, one most used methods.

10.12968/vetn.2017.8.7.398 article EN The Veterinary Nurse 2017-09-02

A few years after the initial 2011 large scale Schmallenberg virus (SBV) epidemic that affected Europe, a subsequent decrease in new SBV infections was observed presumably associated with natural substitution of previously exposed animals. In present work, 2-year prospective serosurvey performed to evaluate circulation population sheep living at high altitude central region Portugal and restricted movement. Blood from representative sample 168 autochthonous collected 2015 again 2016, tested...

10.1111/tbed.12899 article EN Transboundary and Emerging Diseases 2018-05-15

Aneurysms of the subclavian-axillary segment are rare, but when diagnosed they must be treated. This article describes two cases aneurysms upper extremities, one in a subclavian artery and other an axillary artery. The first case was 71-year-old male with pulsating supraclavicular bulge on right muscle weakness ipsilateral extremity. Duplex scanning arteriography confirmed diagnosis aneurysm patient underwent aneurysmectomy end-to-end anastomosis. second 24-year-old female patient, no...

10.1590/jvb.2013.054 article EN cc-by Jornal Vascular Brasileiro 2013-12-15

Diagnosis of parasitic larval forms is typically associated with complex, costly methods. As such, simple, low-cost diagnostic tools for larvae identification are the utmost importance in parasitology veterinary clinic. Herewith we describe Baermann technique, one most used

10.12968/vetn.2017.8.10.558 article EN The Veterinary Nurse 2017-12-02

(1) Background: Toxoplasma gondii is an important zoonosis and one of the major causes abortion in sheep worldwide. (2) Methods: We performed a 2-year longitudinal serological anti-T. IgG screening on cohort spatially confined population Portuguese autochthonous breed central Portugal. (3) Results: From 2015 2016 sera, increase seroprevalence was observed (57.7% (95% CI: 49.9–65.3%) versus 69.1% 61.5–75.9), from 2016, respectively) (p = 0.031). (4) Conclusions The present study first to...

10.3390/pathogens10010040 article EN Pathogens 2021-01-06
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