13 Works

Data from: Zika virus in the Americas: early epidemiological and genetic findings

Nuno Rodrigues Faria, Raimunda Do Socorro Da Silva Azevedo, Moritz U. G. Kraemer, Renato Souza, Mariana Sequetin Cunha, Sarah C. Hill, Julien Thezé, Michael B. Bonsall, Thomas A. Bowden, Ilona Rissanen, Iray Maria Rocco, Juliana Silva Nogueira, Adriana Yurika Maeda, Fernanda Giseli Da Silva Vasami, Fernando Luiz De Lima Macedo, Akemi Suzuki, Sueli Guerreiro Rodrigues, Ana Cecilia Ribeiro Cruz, Bruno Tardeli Diniz, Daniele Barbosa De Almeida Medeiros, Daniela Sueli Guerreiro Rodrigues, Alice Louize Nunes Queiroz, Eliana Vieira Pinto Da Silva, Daniele Freitas Henriques, Elisabeth Salbe Travassos Da Rosa … & Pedro F. C. Vasconcelos
Brazil has experienced an unprecedented epidemic of Zika virus (ZIKV), with ~30,000 cases reported to date. ZIKV was first detected in Brazil in May 2015 and cases of microcephaly potentially associated with ZIKV infection were identified in November 2015. Using next generation sequencing we generated seven Brazilian ZIKV genomes, sampled from four self-limited cases, one blood donor, one fatal adult case, and one newborn with microcephaly and congenital malformations. Phylogenetic and molecular clock analyses show...

Noninvasive fecal sampling in Itatiaia National Park, Brazil: wild mammal identification and parasite detection

Lais Dib, Joao Pedro Palmer, Camila Lima, Jessica Pinheiro, Raissa Cristina Ramos, Claudijane Santos, Ana Beatriz Fonsceca, Karen Rodriguez-Castro, Camila Gonçalves, Pedro Galetti, Lais Correa, Otilio Bastos, Claudia Uchoa, Augusto Bastos, Maria Regina Amendoeira & Alynne Barbosa
Background: Noninvasive collection of feces is a cost-effective strategy for monitoring free-living wild mammals. The aim of this study was to search for carnivore and artiodactyl species and investigate the gastrointestinal parasites in their feces, in Itatiaia National Park, Brazil. Methodology/Main Findings: Between 2017 and 2018, feces from carnivores and artiodactyls were collected along trails in the park. Host species were identified from these feces through macroscopic and trichological examination and through molecular biology using...

Coronavirus prevalence in Brazilian Amazon and Sao Paulo city

Tassila Salomon, Oliver Pybus, Rafael França, Marcia Castro, Ester Cerdeira Sabino, Christopher Dye, Michael Busch, Moritz U. G. Kraemer, Charles Whittaker, Andreza Santos, Nuno Faria, Rafael Pereira, Lewis Buss, , Claudia Abrahim, Maria Carvalho, Allyson Costa, Manoel Barral-Netto, Crispim Myuki, Brian Custer, Cesar De Almeida-Neto, Suzete Ferreira, Nelson Fraiji, Susie Gurzenda, Leonardo Kamaura … & Maria Belotti
SARS-CoV-2 spread rapidly in the Brazilian Amazon. Mortality was elevated, despite the young population, with the health services and cemeteries overwhelmed. The attack rate in this region is an estimate of the final epidemic size in an unmitigated epidemic. Here we show that by June, one month after the epidemic peak in Manaus, capital of the Amazonas state, 44% of the population had detectable IgG antibodies. This equates to a cumulative incidence of 52% after...

Data from: Cruzipain activates latent TGF-β from host cells during T. cruzi invasion

Patrícia Mello Ferrão, Claudia Masini D'Avila-Levy, Tania Cremonini Araujo-Jorge, Wim Maurits Degrave, Antônio Da Silva Gonçalves, Luciana Ribeiro Garzoni, Ana Paula Lima, Jean Jacques Feige, Sabine Bailly, Leila Mendonça-Lima & Mariana Caldas Waghabi
Several studies indicate that the activity of cruzipain, the main lysosomal cysteine peptidase of Trypanosoma cruzi, contributes to parasite infectivity. In addition, the parasitic invasion process of mammalian host cells is described to be dependent on the activation of the host TGF-β signaling pathway by T. cruzi. Here, we tested the hypothesis that cruzipain could be an important activator of latent TGF-β and thereby trigger TGF-β-mediated events crucial for the development of Chagas disease. We...

Data from: Urban population genetics of slum-dwelling rats (Rattus norvegicus) in Salvador, Brazil

Brittney Kajdacsi, Federico Costa, Chaz Hyseni, Fleur Porter, Julia Brown, Gorete Rodrigues, Helena Farias, Mitermeyer G. Reis, James E. Childs, Albert I. Ko & Adalgisa Caccone
Throughout the developing world, urban centres with sprawling slum settlements are rapidly expanding and invading previously forested ecosystems. Slum communities are characterized by untended refuse, open sewers and overgrown vegetation, which promote rodent infestation. Norway rats (Rattus norvegicus) are reservoirs for epidemic transmission of many zoonotic pathogens of public health importance. Understanding the population ecology of R. norvegicus is essential to formulate effective rodent control strategies, as this knowledge aids estimation of the temporal stability...

Behavior, sensory reception and genomics in a vector insect

Marcelo Gustavo Lorenzo & Claudio R. Lazzari

Use of intrapartum evidence-based practices in childbirth after participating in the Senses of Birth intervention among Brazilian women

Luisa M M Fernandes, Sônia Lansky, Hozana Reis Passos, Christine T. Bozlak & Benjamin A. Shaw
Brazil has a cesarean rate of 56% and low use of Intrapartum Evidence-based Practices (IEBP) of 3.4%, reflecting a medically centered and highly interventionist maternal health care model. The Senses of Birth (SoB) is a health education intervention created to promote normal birth, use of EBP, and reduce unnecessary c-sections. This study aimed to understand the use of intrapartum EBP by Brazilian women who participated in the SoB intervention. 555 women answered the questionnaire between...

Plasmodium infection induces cross-reactive antibodies to carbohydrate epitopes on the SARS-CoV-2 Spike protein

Sarah Lapidus, Feimei Liu, Arnau Casanovas-Massana, Yile Dai, John D. Huck, Carolina Lucas, Jon Klein, Renata B. Filler, Madison S. Strine, Mouhamad Sy, Awa B. Deme, Aida S. Badiane, Baba Dieye, Ibrahima Mbaye Ndiaye, Younous Diedhiou, Amadou Moctar Mbaye, Cheikh Tidiane Diagne, Inés Vigan-Womas, Alassane Mbengue, Bacary D. Sadio, Moussa M. Diagne, Adam J. Moore, Khadidiatou Mangou, Fatoumata Diallo, Seynabou D. Sene … & Amy K. Bei
Individuals with acute malaria infection generated high levels of antibodies that cross-react with the SARS-CoV-2 Spike protein. Cross-reactive antibodies specifically recognized the sialic acid moiety on N-linked glycans of the Spike protein and do not neutralize in vitro SARS-CoV-2. Sero-surveillance is critical for monitoring and projecting disease burden and risk during the pandemic; however, routine use of Spike protein-based assays may overestimate SARS-CoV-2 exposure and population-level immunity in malaria-endemic countries.

Data from: Interspecific Y chromosome variation is sufficient to rescue hybrid male sterility and is influenced by the grandparental origin of the chromosomes

Luciana O. Araripe, Yun Tao & Bernardo Lemos
Y chromosomes display population variation within and between species. Co-evolution within populations is expected to produce adaptive interactions between Y chromosomes and the rest of the genome. One consequence is that Y chromosomes from disparate populations could disrupt harmonious interactions between co-evolved genetic elements and result in reduced male fertility, sterility or inviability. Here we address the contribution of ‘heterospecific Y chromosomes’ to fertility in hybrid males carrying a homozygous region of Drosophila mauritiana introgressed...

Data from: Multiple paternity in the Norway rat, Rattus norvegicus, from urban slums in Salvador, Brazil

Federico Costa, Jonathan L. Richardson, Kirstin Dion, Carol Mariani, Arsinoe C. Pertile, Mary K. Burak, James E. Childs, Albert I. Ko & Adalgisa Caccone
The Norway rat, Rattus norvegicus, is one of the most important pest species globally and the main reservoir of leptospires causing human leptospirosis in the urban slums of tropical regions. Rodent control is a frequent strategy in those settings to prevent the disease but rapid growth from residual populations and immigration limit the long-term effectiveness of interventions. To characterize the breeding ecology of R. norvegicus and provide needed information for the level of genetic mixing,...

Data from: Diversity in morphology and locomotory behavior is associated with niche expansion in the semi-aquatic bugs

Antonin J. J. Crumière, M. Emilia Santos, Marie Sémon, David Armisén, Felipe F. F. Moreira & Abderrahman Khila
Acquisition of new ecological opportunities is a major driver of adaptation and species diversification [ 1–4 ]. However, how groups of organisms expand their habitat range is often unclear [ 3 ]. We study the Gerromorpha, a monophyletic group of heteropteran insects that occupy a large variety of water surface-associated niches, from small puddles to open oceans [ 5, 6 ]. Due to constraints related to fluid dynamics [ 7–9 ] and exposure to predation...

Data from: Molecular phylogeny of Triatomini (Hemiptera: Reduviidae: Triatominae)

Silvia Andrade Justi, Claudia A. M. Russo, Jacenir Reis Dos Santos Mallet, Marcos Takashi Obara & Cleber Galvão
Background: The Triatomini and Rhodniini (Hemiptera: Reduviidae) tribes include the most diverse Chagas disease vectors; however, the phylogenetic relationships within the tribes remain obscure. This study provides the most comprehensive phylogeny of Triatomini reported to date. Methods: The relationships between all of the Triatomini genera and representatives of the three Rhodniini species groups were examined in a novel molecular phylogenetic analysis based on the following six molecular markers: the mitochondrial 16S; Cytochrome Oxidase I and...

Seascape genetics of the Atlantic spotted dolphin (Stenella frontalis) based on mitochondrial DNA

Karina Bohrer Do Amaral, Dalia C. Barragán-Barrera, Roosevelt A. Mesa-Gutiérrez, Nohelia Farias-Curtidor, Susana J. Caballero Gaitán, Paula Méndez-Fernandez, Marcos C. Oliveira Santos, Caroline Rinaldi, Renato Rinaldi, Salvatore Siciliano, Vidal Martín, Manuel Carillo, Ana Carolina O. De Meirelles, Valentina Franco-Trecu, Nelson J. R. Fagundes, Ignacio Benites Moreno, L. Lacey Knowles & Ana Rita Amaral
The Atlantic spotted dolphin (Stenella frontalis) is endemic to tropical, subtropical, and warm temperate waters of the Atlantic Ocean. Throughout its distribution, both geographic distance and environmental variation may contribute to population structure of the species. In this study we follow a seascape genetics approach to investigate population differentiation of Atlantic spotted dolphins based on a large worldwide dataset and the relationship with marine environmental variables. The results revealed that the Atlantic spotted dolphin exhibits...

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