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Viral genetics and transmission dynamics in the second wave of mpox outbreak in...

Cordeiro, Rita; Caetano, Constantino P.; Sobral, Daniel; Ferreira, Rita; Coelho, Luís; Pelerito, Ana; de Carvalho, Isabel Lopes; Namorado, Sónia


An Overview of Monkeypox Virus Detection in Different Clinical Samples and Anal...

Cordeiro, Rita; Pelerito, Ana; de Carvalho, Isabel Lopes; Lopo, Sílvia; Neves, Raquel; Rocha, Raquel; Palminha, Paula; Verdasca, Nuno

Mpox is a zoonotic disease caused by the Monkeypox virus (MPXV), and since May 2022, tens of thousands of cases have been reported in non-endemic countries. We aimed to evaluate the suitability of different sample types for mpox diagnostic and assess the temporal dynamics of viral load. We evaluated 1914 samples from 953 laboratory-confirmed cases. The positivity rate was higher for lesion (91.3%) and rectal sw...


Natural selection and recombination at host-interacting lipoprotein loci drive ...

Akther, Saymon; Mongodin, Emmanuel F.; Morgan, Richard D.; Di, Lia; Yang, Xiaohua; Golovchenko, Maryna; Rudenko, Natalie; Margos, Gabriele

Lyme disease, caused by spirochetes in the Borrelia burgdorferi sensu lato clade within the Borrelia genus, is transmitted by Ixodes ticks and is currently the most prevalent and rapidly expanding tick-borne disease in Europe and North America. We report complete genome sequences of 47 isolates that encompass all established species in this clade while highlighting the diversity of the widespread human pathogen...


Viral genetic clustering and transmission dynamics of the 2022 mpox outbreak in...

Borges, Vítor; Duque, Mariana Perez; Martins, João Vieira; Vasconcelos, Paula; Ferreira, Rita; Sobral, Daniel; Pelerito, Ana; de Carvalho, Isabel Lopes

Pathogen genome sequencing during epidemics enhances our ability to identify and understand suspected clusters and investigate their relationships. Here, we combine genomic and epidemiological data of the 2022 mpox outbreak to better understand early viral spread, diversification and transmission dynamics. By sequencing 52% of the confirmed cases in Portugal, we identified the mpox virus sublineages with the hi...


Viral genetic clustering and transmission dynamics of the 2022 mpox outbreak in...

Borges, Vítor; Duque, Mariana Perez; Martins, João Vieira; Vasconcelos, Paula; Ferreira, Rita; Sobral, Daniel; Pelerito, Ana; de Carvalho, Isabel Lopes

Pathogen genome sequencing during epidemics enhances our ability to identify and understand suspected clusters and investigate their relationships. Here, we combine genomic and epidemiological data of the 2022 mpox outbreak to better understand early viral spread, diversification and transmission dynamics. By sequencing 52% of the confirmed cases in Portugal, we identified the mpox virus sublineages with the hi...


Phylogenomic characterization and signs of microevolution in the 2022 multi-cou...

Isidro, Joana; Borges, Vítor; Pinto, Miguel; Sobral, Daniel; Santos, João Dourado; Nunes, Alexandra; Mixão, Verónica; Ferreira, Rita; Santos, Daniela

The largest monkeypox virus (MPXV) outbreak described so far in non-endemic countries was identified in May 2022 (refs. 1-6). In this study, shotgun metagenomics allowed the rapid reconstruction and phylogenomic characterization of the first MPXV outbreak genome sequences, showing that this MPXV belongs to clade 3 and that the outbreak most likely has a single origin. Although 2022 MPXV (lineage B.1) clustered ...


Borrelia garinii and Francisella tularensis subsp. holarctica detected in migra...

de Carvalho, Isabel Lopes; Alves, Ana Sofia; Pardal, Sara; Lopes, Ricardo Jorge; Mendes, Luísa; Núncio, Maria Sofia; Zé-Zé, Líbia

Migratory shorebirds use, among many, the East Atlantic Flyway that links breeding areas as north as Tundra habitats to aquatic wintering grounds in West Africa. As a consequence, they are potentially important in the spread of global zoonotic diseases transmitted by ticks, such as Lyme borreliosis and tularemia—two diseases previously detected in Portugal. In this study, we looked at the infection status of se...


Molecular characterization of a new isolate of Borrelia lusitaniae derived from...

de Carvalho, Isabel Lopes; Zeidner, N.; Ullmann, A.; Hojgaard, A.; Amaro, F.; Zé-Zé, Líbia; Alves, M.J.; De Sousa, R.; Piesman, J.; Núncio, M.S.

A total of 196 small mammals were collected in Portugal and tested for Borrelia burgdorferi sensu lato. Tissue samples were taken from each animal and cultured in Barbour-Stoenner-Kelly (BSK)-II medium. The single strain of spirochete isolated was confirmed as Borrelia lusitaniae by genetic analyses. This is the first report of B. lusitaniae isolated from Apodemus sylvaticus.


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