Gilmar Ribeiro Jr

@fiocruz.br

Laboratory of pathology and molecular biology
Fiocruz-BA

Gilmar Ribeiro Jr
Gilmar Ribeiro-Jr holds an undergraduate degree in Biological Sciences from the Catholic University of Salvador (UCSal). During his studies, he developed skills in field sampling strategies, GIS, entomology, and insect taxonomy, focusing on triatomines and T. cruzi at Fiocruz-BA. He earned his Ph.D. and M.Sc. in Biotechnology Applied to Public Health and Investigative Medicine from Fiocruz-BA, where he gained expertise in sample processing, data management, statistics, data science, bioinformatics, and molecular biology. He has experience with molecular detection and genotyping related to Chagas disease, particularly T. cruzi and triatomine blood meals, metagenomics, and microsatellite analysis. He is skilled in DNA purification, PCR, electrophoresis, and DNA sequencing, using both Sanger and NGS-based methods. Gilmar has authored 20 published manuscripts and holds an H-index of 10 with ~300 citations. He is also a peer reviewer for journals.

RESEARCH, TEACHING, or OTHER INTERESTS

Molecular Biology, Insect Science, Public Health, Environmental and Occupational Health, Ecology, Evolution, Behavior and Systematics
14

Scopus Publications

363

Scholar Citations

10

Scholar h-index

11

Scholar i10-index

Scopus Publications

  • IgG Isotypes Targeting a Recombinant Chimeric Protein of Trypanosoma cruzi in Different Clinical Presentations of Chronic Chagas Disease
    Isabela Machado Serrano, Gilmar Ribeiro, Ronnei Silva Santos, Jaqueline Silva Cruz, Fernanda Cardoso Lanza, et al.
    American Journal of Tropical Medicine and Hygiene, 2024
    Chagas disease (CD) is caused by the protozoan Trypanosoma cruzi, which leads to a spectrum of clinical presentations that range from asymptomatic to severe cardiac involvement. The host immune response plays a pivotal role in disease progression. Ig isotypes may contribute to disease pathogenesis. Investigating these components can provide insights into the immunopathogenic mechanisms underlying CD. This cross-sectional study aims to establish a correlation between the Ig profile of individuals infected with T. cruzi with the clinical forms of chronic CD. Serum samples were collected from partner institutions in different states of Brazil. Individuals diagnosed with chronic CD were categorized based on the clinical form of the disease. The indirect ELISA method using the recombinant chimeric Molecular Biology Institute of Paraná membrane protein 8.4 as the antigen was used to determine the Ig profile, including total IgG, IgG1, IgG2, IgG3, and IgG4. Ninety-seven serum samples from patients classified as negative (NEG, n = 38), indeterminate (IND, n = 24), mild cardiac (MC, n = 20), and severe cardiac (SC, n = 15) forms were analyzed. IgG1 exhibited greater levels compared with the other isotypes, showing a significant difference between the MC and IND groups. IgG3 levels were greater in individuals from the MC group compared with the SC group. IgG1 and IgG3 isotypes can serve as biomarkers to evaluate the progression of CD because they exhibit variations across clinical groups. Additional longitudinal studies are necessary to explore the relationship between antibody kinetics and the development of tissue damage.
  • Spatio-temporal trends in mortality due to Chagas disease in the State of Bahia, Brazil, from 2008 to 2018
    Cristiane Medeiros Moraes de Carvalho, Gilmar Ribeiro-Jr, Rodrigo Gurgel-Gonçalves, Liane Santiago Andrade, Cicílio Alves Moraes, et al.
    Revista Da Sociedade Brasileira De Medicina Tropical, 2024
    Background: Chagas disease is a silent illness with high mortality burden in many Latin American countries, such as Brazil. Bahia has the fourth highest mortality rate in Brazil. This study analyzed the temporal trends and regional differences in the mortality rate of Chagas disease in Bahia State from 2008 to 2018. Methods: A time-series analysis of Chagas disease-related deaths was conducted using data from the Mortality Information System of Brazil. We compared the mortality rate due to Chagas disease as the primary cause and mention of the disease in the death certificate, standardized by age and health macroregion/residence municipality, and mapped hot and coldspots. Results: The Chagas Disease Mortality Rate in Bahia during the study period revealed a stationary trend, ranging from 5.34 (2008) to 5.33 (2018) deaths per 100,000 inhabitants. However, the four health macroregions showed an upward trend in mortality rates. The mortality rate (age-adjusted) ranged from 4.3 to 5.1 deaths per 100,000 inhabitants between 2008 and 2018. We observed a upward trend in the mortality rate among individuals aged ≥70 years and a higher incidence of death among men than among women. Of the total number of deaths (8,834), 79.3% had Chagas disease as the primary cause and the death certificates of 20.7% mentioned the disease. Cardiac complications were reported in 85.1% of the deaths due to Chagas disease. Conclusions: The regional and individual differences in the mortality rate of Chagas disease highlighted in this study may support health planning that considers the peculiarities of the territory.
  • Sometimes, the size matters: Wing geometric morphometrics as a tool to assess domiciliation by Triatoma sordida (Stäl 1859)
    Gilmar Ribeiro-Jr, Jamylle Reis, Fernanda Vaccarezza, Amanda Catariny de Oliveira Silva, Fernanda Cardoso Lanza, et al.
    Revista Da Sociedade Brasileira De Medicina Tropical, 2024
    Background: Domiciliation by Triatoma sordida is a public health concern in South America. This study aimed to evaluate the morphometric changes in the domestic and peridomestic populations of T. sordida. Methods: Specimen hemelytra were mounted, digitized, and processed for geometric morphometric analyses. Results: The specimens captured in houses were smaller than those captured in peridomiciles. A large size reduction effect was observed in female peridomicile populations compared with female house populations. Conclusions: T. sordida house populations were smaller than peridomestic populations. Wing geometric morphometry can be used as a tool to indicate T. sordida domiciliation.
  • Natural infection of Lutzomyia longipalpis (Lutz & Neiva, 1912) by Leishmania infantum in a municipality with a high incidence of visceral leishmaniasis in the Brazilian Midwest
    Herintha Coeto Neitzke-Abreu, Georgia Medeiros de Castro Andrade, Paulo Silva de Almeida, Gilmar Cipriano Ribeiro, Thaís Alves Ribeiro, et al.
    Revista Da Sociedade Brasileira De Medicina Tropical, 2023
    Background: Here, Leishmania presence in sand flies from Três Lagoas, Mato Grosso do Sul, Brazil, after visceral leishmaniasis (VL) was investigated. Methods: In April 2022, two light traps were deployed within and around the residence for two days post-VL case report. Results: A total of 120 Lutzomyia longipalpis were collected. Suprapyloric flagellates were found in a female sand fly with eggs and residual blood during midgut dissection. Sequencing of ITS1 and cytb fragments confirmed Leishmania infantum DNA and identified Homo sapiens as the blood source, respectively. Conclusions: This study emphasizes the importance of monitoring sand flies in VL endemic areas.
  • Epidemiological indicators of Chagas disease in the metropolitan region of Salvador, Bahia, Brazil
    Fernanda Cardoso Lanza, Gilmar Ribeiro-Jr, Diego Lopes Paim Miranda, Fred Luciano Neves Santos, Cristiane Medeiros Moraes de Carvalho, et al.
    Revista Da Sociedade Brasileira De Medicina Tropical, 2023
    Background: Chagas disease (CD) is caused by Trypanosoma cruzi and transmitted by triatomines. Historical information from the 20th century demonstrates T. cruzi records in the metropolitan region of Salvador (MRS), the third largest urban agglomeration in the Brazilian Northeast and the eighth largest in Brazil, an area with intense migratory activity from CD-endemic regions. Therefore, this study aimed to evaluate CD indicators (prevalence and mortality) in the MRS. Methods: A mixed ecological and descriptive study was conducted using secondary data. We analyzed data from 2008 to 2015: deaths due to CD, self-reported cases of CD, and blood donors that were non-negative for T. cruzi infection. Results: São Francisco do Conde was one of the municipalities with the highest mortality rates due to CD. The seroprevalence rates varied by year and municipality; those with the highest values were 2008: Vera Cruz, 2009: Mata de São João, 2010: Dias D'Ávila, 2011 and 2015: São Francisco do Conde, 2012: São Sebastião do Passé, and 2013 and 2014: Pojuca. Spatial correlations between the municipalities were not detected. Conclusions: We conclude that CD is present in the MRS. The indicators analyzed in the MRS are below-state-level data. Given the importance of indicator analysis for the surveillance and control of CD at the state and national levels, it is important to strengthen the surveillance program at the municipal level, including the regions classified as low risk for T. cruzi vector transmission.
  • Eco-epidemiology of vectorial Trypanosoma cruzi transmission in a region of northeast Brazil
    Flavia Santos, Jairo Torres Magalhães-Junior, Ianei de Oliveira Carneiro, Fred Luciano Neves Santos, Ângelo Antônio Oliveira Silva, et al.
    Acta Tropica, 2022
  • Triatomine fauna in the state of Bahia, Brazil: What changed after 40 years of the vector-control program?
    Gilmar Ribeiro-Jr, Renato Freitas de Araújo, Cristiane Medeiros Moraes de Carvalho, Gabriel Muricy Cunha, Fernanda Cardoso Lanza, et al.
    Revista Da Sociedade Brasileira De Medicina Tropical, 2022
    Background: Neglected tropical diseases are a growing threat to global health, and endemic Chagas disease has emerged as one of the most important health problems in America. The main strategy to prevent Trypanosoma cruzi transmission is chemical control of vectors. This study presents a descriptive analysis of synanthropic triatomines before and after the implementation of a vector-control program in Bahia, Brazil. Methods: Descriptive analysis and geospatial statistics were performed on triatomine data, (1) the relative abundance and (2) proportional spatial distribution, from Bahia during two periods: (A) 1957 to 1971 and (B) 2006 to 2019. Results: We observed a decrease in the relative abundance of Panstrongylus megistus (A: n=22.032, 61.9%; B: n=1.842, 1.0%) and Triatoma infestans (A: n=1.310, 3.7%; B: n=763, 0.43%), as well as an increase in the relative abundance of T. sordida (A: n=8.314, 23.4%, B: n=146.901, 81.6%) and T. pseudomaculata (A: n=894, 2.5%, B: n=16.717, 9.3%). Conclusions: Our results indicate a clear reduction in the occurrence of P. megistus and T. infestans (last record in 2015) and an increase in the relative abundance and geographical distribution of T. sordida and T. pseudomaculata after 40 years of the vector-control program. The high frequency of other triatomine species in the municipalities of the state of Bahia and their abundance in recent years highlight the need to reinforce permanent entomological surveillance actions to prevent Chagas disease.
  • TriatoScore: an entomological-risk score for Chagas disease vector control-surveillance
    Gilmar Ribeiro-Jr, Fernando Abad-Franch, Orlando M. F. de Sousa, Carlos G. S. dos Santos, Eduardo O. L. Fonseca, et al.
    Parasites and Vectors, 2021
    Background Triatomine bugs transmit Chagas disease across Latin America, where vector control-surveillance is increasingly decentralized. Locally run systems often deal with highly diverse native-vector faunas—plus, in some areas, domestic populations of non-native species. Flexible entomological-risk indicators that cover native and non-native vectors and can support local decision-making are therefore needed. Methods We present a local-scale entomological-risk score (“TriatoScore”) that leverages and builds upon information on the ecology-behavior and distribution-biogeography of individual triatomine bug species. We illustrate our approach by calculating TriatoScores for the 417 municipalities of Bahia state, Brazil. For this, we (i) listed all triatomine bug species recorded statewide; (ii) derived a “species relevance score” reflecting whether each species is native/non-native and, if native, whether/how often it invades/colonizes dwellings; (iii) mapped each species’ presence by municipality; (iv) for native vectors, weighted presence by the proportion of municipal territory within ecoregions occupied by each species; (v) multiplied “species relevance score” × “weighted presence” to get species-specific “weighted scores”; and (vi) summed “weighted scores” across species to get municipal TriatoScores. Using standardized TriatoScores, we then grouped municipalities into high/moderate/low entomological-risk strata. Results TriatoScores were higher in municipalities dominated by dry-to-semiarid ecoregions than in those dominated by savanna-grassland or, especially, moist-forest ecoregions. Bahia’s native triatomines can maintain high to moderate risk of vector-borne Chagas disease in 318 (76.3%) municipalities. Historical elimination of Triatoma infestans from 125 municipalities reduced TriatoScores by ~ 27% (range, 20–44%); eight municipalities reported T. infestans since Bahia was certified free of Trypanosoma cruzi transmission by this non-native species. Entomological-risk strata based on TriatoScores agreed well with Bahia’s official disease-risk strata, but TriatoScores suggest that the official classification likely underestimates risk in 42 municipalities. Of 152 municipalities failing to report triatomines in 2006–2019, two and 71 had TriatoScores corresponding to, respectively, high and moderate entomological risk. Conclusions TriatoScore can help control-surveillance managers to flexibly assess and stratify the entomological risk of Chagas disease at operationally relevant scales. Integrating eco-epidemiological, demographic, socioeconomic, or operational data (on, e.g., local-scale dwelling-infestation or vector-infection frequencies, land-use change and urbanization, housing conditions, poverty, or the functioning of control-surveillance systems) is also straightforward. TriatoScore may thus become a useful addition to the triatomine bug control-surveillance toolbox. Graphical abstract
  • Natural Infection by Trypanosoma cruzi in a Dog from Bahia State - Northeast of Brazil
    Kaíque Pires Moura da Silva, Valquíria Tatiele Da Silva Rodrigues, Gilmar José da Silva Ribeiro Junior, Ianei De Oliveira Carneiro, Deusdete Conceição Gomes Júnior, et al.
    Acta Scientiae Veterinariae, 2020
    Background: Chagas Disease (CD) is a parasitic anthropozoonosis caused by the Trypanosoma cruzi (T. cruzi), a protozoan transmitted by insects from the Reduviidae family. Several species of wild and domestic animals, humans included, are susceptible, developing acute clinical signals (myocarditis and cardiac arrhythmias) or chronic signals (drop on the performance and syncope) of the disease. In Brazil, the disease in dogs shows variable indexes of occurrence. The present paper describes the natural infection by T. cruzi in a canine living in the city of Barra, in the state of Bahia, Brazil, a region classified as high risk of vulnerability for the CD in the northeast of Brazil.Case: A 9-year-old male dog, non-specific breed, was referred to the clinic the Veterinary Clinic for Small Animals, at the Veterinary Medical Teaching Hospital), at the Federal University of the West of Bahia. Its owner reported the presence of bloody secretion in the penile region. During the physical exam it was possible to observe an increase in the volume of the penis base. All of the animal’s physiological parameters were within normal levels. Blood samples and cytological laminas from the lesioned area were collected and sent to the Laboratory of Veterinary Clinical Pathology in the same institution. The cytological exam showed monomorphic population of great round cells with a round nucleus, condensed chromatin and one to two prominent nucleolus, abundant and slightly basophilic cytoplasm, with multiple stippled vacuoles, thus confirming a Transmissible venereal tumor (TVT) case. With the blood exam one observed a thrombocytopenia, neutrophilia with a deviation on the left and the presence of a trypomastigote form of Trypanosoma sp. in the blood smears. A complete blood sample was sent to the Laboratory of Pathology and Molecular Biology from the Fiocruz-BA (Oswaldo Cruz Foundation in the State of Bahia), being identified by the PCR technique, T. cruzi.Discussion: During the complete blood count, specifically using the blood smear, the microscopic visualization of the trypomastigote form of the Trypanosoma sp., a hemoparasite of filiform aspect, with undulating membrane over the whole body and free flagellum, confirming a case of trypanosomiasis. Such diagnostics had not been considered up to this moment, as the animal did not present any clinic symptomatology that indicated the pathological condition. The high levels of parasitemia presented by the animal, confirmed by the presence of the protozoan in the blood smear, probably indicate the acute phase of the infection, period in which the multiplication and development of the agent is higher, consequently allowing the visualization of the hemoparasite in the lamina. Although the TVT had proved to be the main derogatory factor of sanity and wellbeing of the animal, one calls the attention in this case for the trypanosomiasis, a zoonosis that causes great risk to the sole health, highlighting that the canine species is taken as an important reservoir of T. cruzi, relevant for the maintenance and interaction among the domestic and wild cycles of the Chagas Disease. This is the first report of a canine naturally infected by T. cruzi in the west Region of the State of Bahia. It is, thus, important to emphasize its significance once dogs can be reservoirs of the protozoan, acting in their life cycle and epidemiological chain of the Chagas Disease, enabling the infection of triatomines and humans. Future studies should be done with the purpose of determining the predominance of the agent in the region of the city of Barra, in the State of Bahia.
  • Wide distribution of Trypanosoma cruzi-infected triatomines in the State of Bahia, Brazil
    Gilmar Ribeiro, Carlos G. S. dos Santos, Fernanda Lanza, Jamylle Reis, Fernanda Vaccarezza, et al.
    Parasites and Vectors, 2019
    Background The identification of Trypanosoma cruzi and blood-meal sources in synanthropic triatomines is important to assess the potential risk of Chagas disease transmission. We identified T. cruzi infection and blood-meal sources of triatomines caught in and around houses in the state of Bahia, northeastern Brazil, and mapped the occurrence of infected triatomines that fed on humans and domestic animals. Methods Triatominae bugs were manually captured by trained agents from the Epidemiologic Surveillance team of Bahia State Health Service between 2013 and 2014. We applied conventional PCR to detect T. cruzi and blood-meal sources (dog, cat, human and bird) in a randomized sample of triatomines. We mapped triatomine distribution and analyzed vector hotspots with kernel density spatial analysis. Results In total, 5906 triatomines comprising 15 species were collected from 127 out of 417 municipalities in Bahia. The molecular analyses of 695 triatomines revealed a ~10% T. cruzi infection rate, which was highest in the T. brasiliensis species complex. Most bugs were found to have fed on birds (74.2%), and other blood-meal sources included dogs (6%), cats (0.6%) and humans (1%). Trypanosoma cruzi-infected triatomines that fed on humans were detected inside houses. Spatial analysis showed a wide distribution of T. cruzi-infected triatomines throughout Bahia; triatomines that fed on dogs, humans, and cats were observed mainly in the northeast region. Conclusions Synanthropic triatomines have a wide distribution and maintain the potential risk of T. cruzi transmission to humans and domestic animals in Bahia. Ten species were recorded inside houses, mainly Triatoma sordida, T. pseudomaculata, and the T. brasiliensis species complex. Molecular and spatial analysis are useful to reveal T. cruzi infection and blood-meal sources in synanthropic triatomines, identifying areas with ongoing threat for parasite transmission and improving entomological surveillance strategies.
  • Seroprevalence of Trypanosoma cruzi infection among blood donors in the state of Bahia, Brazil
    Diego Lopes Paim Miranda, Gilmar Ribeiro Jr, Fernanda Cardoso Lanza, Fred Luciano Neves Santos, Renato Barbosa Reis, et al.
    Revista Da Sociedade Brasileira De Medicina Tropical, 2019
  • Trypanosoma cruzi and Leishmania sp. infection in wildlife from urban rainforest fragments in northeast Brazil
    Indira Trüeb, Ricardo D. Portela, Carlos R. Franke, Ianei O. Carneiro, Gilmar J. Ribeiro, et al.
    Journal of Wildlife Diseases, 2018
  • Frequent House Invasion of Trypanosoma cruzi-Infected Triatomines in a Suburban Area of Brazil
    Gilmar Ribeiro Jr., Rodrigo Gurgel-Gonçalves, Renato Barbosa Reis, Carlos Gustavo Silva dos Santos, Alekhine Amorim, et al.
    Plos Neglected Tropical Diseases, 2015
  • Vector control measures failed to affect genetic structure of Aedes aegypti in a sentinel metropolitan area of Brazil
    Kathleen R. Souza, Gilmar Ribeiro, Carlos Gustavo Silva dos Santos, Eliaci Couto de Lima, Paulo R.S. Melo, et al.
    Acta Tropica, 2013

RECENT SCHOLAR PUBLICATIONS

  • Knowledge about Chagas disease among Primary Health Care professionals in a municipality located in northeastern Brazil
    MC Almeida, JF Souza Soares, RS Santos, G Ribeiro Jr, RB Reis, ...
    PLOS Neglected Tropical Diseases 20 (2), e0014000 , 2026
    2026
  • On the juice? Trypanosoma cruzi vectorial-oral outbreak investigation in a semi-arid rural area of Brazil
    G Ribeiro Jr, JRT Frota, NP de Sousa Silva, BMO Barbosa, LS Rios, ...
    Parasites & Vectors , 2025
    2025
  • Deforestation effects and house invasion by chagas disease vectors in Brazil
    G Ribeiro-Jr, MRV Verde, HD Argibay, CW Cardoso, F Simões, ...
    Scientific Reports 15 (1), 38218 , 2025
    2025
    Citations: 4
  • WHAT IS THE EFFECT OF DEFORESTATION OF THE ATLANTIC FOREST ON THE OCCURRENCE OF PANSTRONGYLUS TIBIAMACULATUS IN URBAN AREAS?
    G Ribeiro, FC Lanza, DLP Miranda, RB Reis, CW Cardoso, F Simoes, ...
    AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE 112 (6) , 2025
    2025
  • Spatio-temporal trends in mortality due to Chagas disease in the State of Bahia, Brazil, from 2008 to 2018
    CMM Carvalho, G Ribeiro-Jr, R Gurgel-Gonçalves, LS Andrade, ...
    Revista da Sociedade Brasileira de Medicina Tropical 57, e00417-2024 , 2024
    2024
    Citations: 4
  • ANTICOAGULAÇÃO EM PACIENTES INTERNADOS POR COVID-19: QUAL A ABORDAGEM IDEAL?
    LG Yamashita, AS Lima, ACM Arenghi, CT Buzo, FAA Paranaiba, ...
    Hematology, Transfusion and Cell Therapy 46, S1108 , 2024
    2024
  • Sometimes, the size matters: Wing geometric morphometrics as a tool to assess domiciliation by Triatoma sordida (Stäl 1859)
    G Ribeiro-Jr, J Reis, F Vaccarezza, ACO Silva, FC Lanza, DLP Miranda, ...
    Revista da Sociedade Brasileira de Medicina Tropical 57, e00709-2024 , 2024
    2024
    Citations: 3
  • IgG Isotypes Targeting a Recombinant Chimeric Protein of Trypanosoma cruzi in Different Clinical Presentations of Chronic Chagas Disease
    IM Serrano, G Ribeiro Jr, RS Santos, JS Cruz, FC Lanza, EF Dos Santos, ...
    The American Journal of Tropical Medicine and Hygiene 110 (4), 669 , 2024
    2024
    Citations: 2
  • Epidemiological indicators of Chagas disease in the metropolitan region of Salvador, Bahia, Brazil
    FC Lanza, G Ribeiro-Jr, DLP Miranda, FLN Santos, CMM Carvalho, ...
    Revista da Sociedade Brasileira de Medicina Tropical 56, e0185-2022 , 2023
    2023
    Citations: 4
  • Proporção da vulnerabilidade para doença de Chagas crônica na Bahia
    CMM CARVALHO
    2023
    Citations: 2
  • Sometimes, the Size Matters: Wing Geometric Morphometrics as a Tool to Assess House Invasion and Colonization by Triatoma sordida (Stäl 1859)
    G Ribeiro Jr, J Reis, F Vaccarezza, AC de Oliveira Silva, F Cardoso Lanza, ...
    Available at SSRN 4441460 , 2023
    2023
    Citations: 1
  • Triatomine fauna in the state of Bahia, Brazil: What changed after 40 years of the vector-control program?
    G Ribeiro-Jr, RF Araújo, CMM Carvalho, GM Cunha, FC Lanza, ...
    Revista da Sociedade Brasileira de Medicina Tropical 55, e0732-2021 , 2022
    2022
    Citations: 10
  • Triatomine fauna in the state of Bahia, Brazil: what changed after 40 years of the vector-control program?
    G Ribeiro Júnior, RF de Araújo, CMM de Carvalho, GM Cunha, FC Lanza, ...
    2022
  • Vulnerabilidade para transmissão vetorial de trypanosoma cruzi no Estado da Bahia
    G Ribeiro Jr
    2022
  • Eco-epidemiology of vectorial Trypanosoma cruzi transmission in a region of northeast Brazil
    F Santos, JT Magalhães-Junior, I de Oliveira Carneiro, FLN Santos, ...
    Acta tropica 225, 106184 , 2022
    2022
    Citations: 23
  • TriatoScore: an entomological-risk score for Chagas disease vector control-surveillance
    G Ribeiro-Jr, F Abad-Franch, OMF de Sousa, CGS Dos Santos, ...
    Parasites & Vectors 14 (1), 492 , 2021
    2021
    Citations: 27
  • TriatoIndex: a composite indicator for triatomine surveillance
    G Ribeiro Jr, OMF de Sousa, CGS dos Santos, EOL Fonseca, ...
    2020
  • The occurrence of synanthropic triatomines in Bahia, Brazil: what changed after 40 years of the vector-control program?
    G Ribeiro, CMM de Carvalho, RF de Araújo, FC Lanza, DLP Miranda, ...
    2020
  • Natural infection by Trypanosoma cruzi in a dog from Bahia state-Northeast of Brazil
    KPM da Silva, VT da Silva Rodrigues, GJSR Junior, I de Oliveira Carneiro, ...
    Acta Scientiae Veterinariae 48 , 2020
    2020
    Citations: 7
  • Wide distribution of Trypanosoma cruzi -infected triatomines in the State of Bahia, Brazil
    G Ribeiro Jr, CGS Dos Santos, F Lanza, J Reis, F Vaccarezza, C Diniz, ...
    Parasites & Vectors 12 (1), 604 , 2019
    2019
    Citations: 50

MOST CITED SCHOLAR PUBLICATIONS

  • Frequent House Invasion of Trypanosoma cruzi -Infected Triatomines in a Suburban Area of Brazil
    G Ribeiro Jr, R Gurgel-Gonçalves, RB Reis, CGS Santos, A Amorim, ...
    PLoS Neglected Tropical Diseases 9 (4), e0003678 , 2015
    2015
    Citations: 92
  • Wide distribution of Trypanosoma cruzi -infected triatomines in the State of Bahia, Brazil
    G Ribeiro Jr, CGS Dos Santos, F Lanza, J Reis, F Vaccarezza, C Diniz, ...
    Parasites & Vectors 12 (1), 604 , 2019
    2019
    Citations: 50
  • Trypanosoma cruzi and Leishmania sp. infection in wildlife from urban rainforest fragments in northeast Brazil
    I Trüeb, RD Portela, CR Franke, IO Carneiro, GJ Ribeiro Jr, RP Soares, ...
    The Journal of Wildlife Diseases 54 (1), 76-84 , 2018
    2018
    Citations: 39
  • TriatoScore: an entomological-risk score for Chagas disease vector control-surveillance
    G Ribeiro-Jr, F Abad-Franch, OMF de Sousa, CGS Dos Santos, ...
    Parasites & Vectors 14 (1), 492 , 2021
    2021
    Citations: 27
  • Prevalence of Infection of Biomphalaria glabrata by Schistosoma mansoni and the risk of urban Schistosomiasis mansoni in Salvador, Bahia, Brazil
    VS Zanardi, LM Barbosa, FM Simões, SC Thiengo, RE Blanton, G Ribeiro, ...
    Revista da Sociedade Brasileira de Medicina Tropical 52, e20190171 , 2019
    2019
    Citations: 24
  • Eco-epidemiology of vectorial Trypanosoma cruzi transmission in a region of northeast Brazil
    F Santos, JT Magalhães-Junior, I de Oliveira Carneiro, FLN Santos, ...
    Acta tropica 225, 106184 , 2022
    2022
    Citations: 23
  • Seroprevalence of Trypanosoma cruzi infection among blood donors in the state of Bahia, Brazil
    DLP Miranda, G Ribeiro Jr, FC Lanza, FLN Santos, RB Reis, DBM Fraga, ...
    Revista da Sociedade Brasileira de Medicina Tropical 52, e20190146 , 2019
    2019
    Citations: 17
  • Potencial de dispersão de algumas espécies de triatomíneos (Hemiptera: Reduviidae) por aves migratórias
    GR Júnior, CG Silva-Santos, F Noireau, A Dias-Lima
    Sitientibus Série Ciências Biológicas 6 (4), 324-328 , 2006
    2006
    Citations: 12
  • Perfil biossocial dos indivíduos portadores de doença de Chagas atendidos no ambulatório de infectologia do hospital Couto Maia, Salvador, Bahia
    RB Carvalho, HC Silva, MVG Couto, FB da Conceição, GR Junior, ...
    Revista Baiana de Saúde Pública 37, 133-133 , 2013
    2013
    Citations: 11
  • Triatomine fauna in the state of Bahia, Brazil: What changed after 40 years of the vector-control program?
    G Ribeiro-Jr, RF Araújo, CMM Carvalho, GM Cunha, FC Lanza, ...
    Revista da Sociedade Brasileira de Medicina Tropical 55, e0732-2021 , 2022
    2022
    Citations: 10
  • Descrição de focos residuais de Triatoma infestans (Klug, 1834) no município de Novo Horizonte, Bahia
    H Brandão, E Fonseca, R Santos, GR Júnior, CG Santos, B Cova, RM Will, ...
    Revista Baiana de Saúde Pública 39, 91-91 , 2015
    2015
    Citations: 10
  • Infestation of palm trees by triatomines (Hemiptera: Reduviidae) in the state of Bahia, Brazil
    R Gurgel-Gonçalves, GR Júnior, EM da Costa Neto
    EntomoBrasilis 5 (3), 227-231 , 2012
    2012
    Citations: 9
  • Natural infection by Trypanosoma cruzi in a dog from Bahia state-Northeast of Brazil
    KPM da Silva, VT da Silva Rodrigues, GJSR Junior, I de Oliveira Carneiro, ...
    Acta Scientiae Veterinariae 48 , 2020
    2020
    Citations: 7
  • Presence of Triatoma tibiamaculata (Pinto) nymphs in peridomiciles, in Salvador, Bahia
    KSO Santana, ME Bavia, GJ da Silva Ribeiro-Jr, CGS dos Santos, ...
    Revista de Patologia Tropical/Journal of Tropical Pathology 42 (4) , 2013
    2013
    Citations: 5
  • Deforestation effects and house invasion by chagas disease vectors in Brazil
    G Ribeiro-Jr, MRV Verde, HD Argibay, CW Cardoso, F Simões, ...
    Scientific Reports 15 (1), 38218 , 2025
    2025
    Citations: 4
  • Spatio-temporal trends in mortality due to Chagas disease in the State of Bahia, Brazil, from 2008 to 2018
    CMM Carvalho, G Ribeiro-Jr, R Gurgel-Gonçalves, LS Andrade, ...
    Revista da Sociedade Brasileira de Medicina Tropical 57, e00417-2024 , 2024
    2024
    Citations: 4
  • Epidemiological indicators of Chagas disease in the metropolitan region of Salvador, Bahia, Brazil
    FC Lanza, G Ribeiro-Jr, DLP Miranda, FLN Santos, CMM Carvalho, ...
    Revista da Sociedade Brasileira de Medicina Tropical 56, e0185-2022 , 2023
    2023
    Citations: 4
  • Sometimes, the size matters: Wing geometric morphometrics as a tool to assess domiciliation by Triatoma sordida (Stäl 1859)
    G Ribeiro-Jr, J Reis, F Vaccarezza, ACO Silva, FC Lanza, DLP Miranda, ...
    Revista da Sociedade Brasileira de Medicina Tropical 57, e00709-2024 , 2024
    2024
    Citations: 3
  • IgG Isotypes Targeting a Recombinant Chimeric Protein of Trypanosoma cruzi in Different Clinical Presentations of Chronic Chagas Disease
    IM Serrano, G Ribeiro Jr, RS Santos, JS Cruz, FC Lanza, EF Dos Santos, ...
    The American Journal of Tropical Medicine and Hygiene 110 (4), 669 , 2024
    2024
    Citations: 2
  • Proporção da vulnerabilidade para doença de Chagas crônica na Bahia
    CMM CARVALHO
    2023
    Citations: 2