A5041106803- Vector-borne infectious diseases
- Viral Infections and Vectors
- Bacillus and Francisella bacterial research
- Poxvirus research and outbreaks
- Vector-Borne Animal Diseases
- Mosquito-borne diseases and control
- Yersinia bacterium, plague, ectoparasites research
- Zoonotic diseases and public health
- Bird parasitology and diseases
- Herpesvirus Infections and Treatments
- Insect symbiosis and bacterial influences
- Bacteriophages and microbial interactions
- Insect and Pesticide Research
- Animal Ecology and Behavior Studies
- Animal Disease Management and Epidemiology
- Rabies epidemiology and control
- Plant Virus Research Studies
- Disaster Response and Management
- Plant and Fungal Interactions Research
- Viral Infections and Outbreaks Research
- Poisoning and overdose treatments
- Virology and Viral Diseases
- COVID-19 epidemiological studies
- Forensic Toxicology and Drug Analysis
- SARS-CoV-2 and COVID-19 Research
National Institute of Health Dr. Ricardo Jorge
2014-2024
University of Lisbon
2021-2024
Águas de Portugal (Portugal)
2024
Instituto Nacional de Saúde
2009-2016
Universidade Nova de Lisboa
2011
The largest monkeypox virus (MPXV) outbreak described so far in non-endemic countries was identified May 2022 (refs.
Up to 27 May 2022, Portugal has detected 96 confirmed cases of monkeypox. We describe (median age: 33 years (range: 22–51); all males), with an earliest symptom onset date 29 April. Almost (n = 25) live in the Lisbon and Tagus Valley health region. Most were neither part identified transmission chains, nor linked travel or had contact symptomatic persons animals, suggesting possible previously undetected spread
Pathogen genome sequencing during epidemics enhances our ability to identify and understand suspected clusters investigate their relationships. Here, we combine genomic epidemiological data of the 2022 mpox outbreak better early viral spread, diversification transmission dynamics. By 52% confirmed cases in Portugal, identified virus sublineages with highest impact on case numbers fitted them into a global context, finding evidence that several international probably emerged or spread...
Abstract Birds are hosts for several zoonotic pathogens. Because of their high mobility, especially longdistance migrants, birds can disperse these pathogens, affecting distribution and phylogeography. We focused on Borrelia burgdorferi sensu lato, which includes the causative agents Lyme borreliosis, as an example tick‐borne to address role propagation at a large geographical scale. collected ticks from passerine in 11 European countries. B . s.l. prevalence Ixodes spp. was 37% increased...
Birds are important in the ecology of Borrelia burgdorferi sensu lato (s.l.) because they hosts for vector tick immature stages and known reservoirs some genospecies. The aim our study was to assess role common passerine bird species as B. s.l. Western Europe. We surveyed birds enzootic areas Portugal, where no information is available this aetiologic agent lusitaniae, which few have been identified, dominant Twenty-three (2.9%), including Turdus merula, T. philomelos, Parus major Fringilla...
PCR screening of ticks and tissue samples collected from 151 Teira dugesii lizards seems to indicate a potential role this lizard species in the maintenance transmission cycle some Ixodes ricinus tick-borne agents, such as Rickettsia monacensis, helvetica, Borrelia lusitaniae, that are circulating on Madeira Island.
Introduction Francisella tularensis is a highly infectious bacterium that causes the zoonotic disease tularemia. The development of genotyping methods, especially those based on whole-genome sequencing (WGS), has recently increased knowledge epidemiology this disease. However, due to difficulties associated with growth and isolation fastidious pathogen in culture, availability strains subsequently WGS data still limited. Methods To surpass these constraints, we aimed implement culture-free...
Argasid ticks of the Ornithodoros erraticus complex are associated with traditional pig-farming practices on Iberian Peninsula and also found elsewhere in North Africa, West western Asia. The pig farming only biological vectors African swine fever virus (ASFV) known to occur Europe, their ecology makes them an extremely effective reservoir both ASFV Borrelia species which cause tick-borne relapsing (TBRF) humans. recent reappearance European Union, coupled evidence that Portuguese tick...
ABSTRACT Lyme disease, caused by spirochetes in the Borrelia burgdorferi sensu lato clade within genus, is transmitted Ixodes ticks and currently most prevalent rapidly expanding tick-borne disease Europe North America. We report complete genome sequences of 47 isolates that encompass all established species this while highlighting diversity widespread human pathogenic B. . A similar set plasmids has been maintained throughout divergence, indicating they are a key adaptive feature genus....
To confirm that thrushes, such as blackbirds Turdus merula, play a role reservoir for some Borrelia genospecies, we performed xenodiagnostic experiment with captured in mixed wood located Western Portugal where turdi, an uncommon genospecies Europe, was the most prevalent associated birds. Two out of five birds harboured B. turdi infected Ixodes frontalis at time capture. Four transmitted spirochaetes to ricinus ticks: two valaisiana 25.7% and 10.5% ticks, 6.4% 5.4% ticks. Our results showed...
In Portugal, the potent paralytic shellfish toxins (PSTs) have appeared irregularly since onset of a national monitoring program for marine biotoxins in 1986. years where high contamination levels were attained bivalves, sporadic cases human poisonings been recorded, as 1994 and 2007. The reappearance led to appearance new during autumn 2018. This study details toxin ingestion, symptomatology elimination metabolization fluids two patients, who ingested mussels from Portuguese southwest coast...
Populations of vector-borne pathogens are shaped by the distribution and movement vector reservoir hosts. To study what impact host association have on tick-borne pathogens, we investigated population structure Borrelia lusitaniae using multilocus sequence typing (MLST). Novel sequences were acquired from questing ticks collected in multiple North African European locations supplemented publicly available at Pubmlst database (accessed 11 February 2020). Population B. was inferred clustering...
The principal European vector for Borrelia burgdorferi s.l., the causative agents of Lyme disease, is host-generalist tick Ixodes ricinus. Almost all terrestrial host-specialist ticks have been supposed not to contribute transmission cycles. Through an experiment with blackbirds, we show successful by widespread I. frontalis, abundant bird-specialized that infests a broad range songbirds. In first phase experiment, obtained Borrelia-infected frontalis (infection rate: 19%) and ricinus (17%)...