Margarida Simões

Ms. Margarida Simões

Veterinary Medicine, CHRC-Comprehensive Health research Centre, Dept. Veterinary Medicine, School of Science and Technology, University of Évora, Évora, Portugal
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Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 September 2013 in Veterinary Parasitology
Verified
Journal Article
Closed access
Luís CardosoLuís Cardoso
Luís Cardoso
HCH.C.E. Cortes
H.C.E. Cortes
ARA. Reis
A. Reis
PRP. Rodrigues
P. Rodrigues
Margarida SimõesMargarida Simões
Margarida Simões
Gad BanethGad Baneth
Gad Baneth

1 July 2013 in Veterinary Microbiology
Verified
Journal Article
Closed access
CMCarla Mottola
Carla Mottola
FFFerdinando B. Freitas
Ferdinando B. Freitas
Margarida SimõesMargarida Simões
Margarida Simões
CMCarlos Martins
Carlos Martins
ALAlexandre Leitão
Alexandre Leitão
Fernando FerreiraFernando Ferreira
Fernando Ferreira

1 January 2015 in Parasites & Vectors
Verified
Journal Article
Open access
PDF file
Luís CardosoLuís Cardoso
Luís Cardoso
MGMatan Gilad
Matan Gilad
HCHelder Ce Cortes
Helder Ce Cortes
YNYaarit Nachum-Biala
Yaarit Nachum-Biala
ALAna Patrícia Antunes Lopes
Ana Patrícia Antunes Lopes
Gad BanethGad Baneth
Gad Baneth
The bacteria Anaplasma platys and Ehrlichia canis and the protozoan Leishmania infantum are vector-borne agents that cause canine vector-borne diseases, some of which are zoonotic. The present survey investigated the prevalence of Anaplasma, Ehrlichia and Leishmania in red foxes (Vulpes vulpes) from Portugal by molecular analysis, in order to evaluate the epidemiological role of these canids as reservoirs of infection. Blood and/or bone marrow samples were collected from 78 red foxes obtained in eight districts of northern, central and southern Portugal. Real-time polymerase chain reactions (PCR) amplified a 123 bp fragment of the 16S rRNA gene of Anaplasma spp. and Ehrlichia spp. and a 265 bp fragment of the L. infantum internal transcribed spacer one (ITS1) region of the rRNA operon evaluated by PCR-high resolution melt analysis (PCR-HRM), with sequencing of the DNA products. A phylogenetic analysis was carried out to compare these to other sequences from Anaplasma spp. and Ehrlichia spp. deposited in GenBank®. A. platys was detected in 10 (14.5%) and E. canis in two (2.9%) out of 69 foxes; and L. infantum was detected in one (1.3%) of the 78 foxes. The prevalence of A. platys was significantly different from the prevalence of E. canis (p=0.016) and from that of L. infantum (p=0.002). No co-infections were found in any one of the 78 foxes. No statistically significant differences were found between the type of sample (blood and bone marrow), geographic regions (north/centre and south), age (<2 years and ≥2 years) and gender for any one of the agents. This is the first known report of A. platys in red foxes worldwide, as well as the first molecular evidence of E. canis in foxes from Portugal. The moderate prevalence of A. platys suggests that red foxes may play a role in the epidemiology of infection with this bacterium and serve as a reservoir for domestic dogs.

1 September 2019 in Virus Research
Verified
Journal Article
Closed access
Margarida SimõesMargarida Simões
Margarida Simões
FFFerdinando B. Freitas
Ferdinando B. Freitas
ALAlexandre Leitão
Alexandre Leitão
CMCarlos Martins
Carlos Martins
Fernando FerreiraFernando Ferreira
Fernando Ferreira

1 December 2015 in Virus Research
Verified
Journal Article
Closed access
Margarida SimõesMargarida Simões
Margarida Simões
CMCarlos Martins
Carlos Martins
Fernando FerreiraFernando Ferreira
Fernando Ferreira

28 March 2024 in The Journal of Infectious Diseases
Verified
Journal Article
Open access
PDF file
Margarida SimõesMargarida Simões
Margarida Simões
EHEmma B. Hodcroft
Emma B. Hodcroft
PSPeter Simmonds
Peter Simmonds
JAJan Albert
Jan Albert
EAEnagnon K Alidjinou
Enagnon K Alidjinou
KBKimberley S M Benschop
Kimberley S M Benschop
Enterovirus D68 (EV-D68) infections are associated with severe respiratory disease and acute flaccid myelitis (AFM). The European Non-Polio Enterovirus Network (ENPEN) aimed to investigate the epidemiological and genetic characteristics of EV-D68 infections and its clinical impact during the fall-winter season of 2021–2022. From 19 European countries, 58 institutes reported 10 481 (6.8%) EV-positive samples of which 1004 (9.6%) were identified as EV-D68 (including 852 respiratory samples). Clinical data were reported for 969 cases; 78.9% of infections were reported in children (0–5 years); and 37.9% of cases were hospitalized. Acute respiratory distress was commonly noted (93.1%) followed by fever (49.4%). Neurological problems were observed in 6.4% of cases including 6 diagnosed with AFM. Phylodynamic/Nextstrain and phylogenetic analyses based on 694 sequences showed the emergence of 2 novel B3-derived lineages, with no regional clustering. In conclusion, we describe a large-scale European EV-D68 upsurge with severe clinical impact and the emergence of B3-derived lineages.