miembro de
- Universidad del Rosario Faculty member
Ramírez González, Juan David
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Investigador
Persona
Posiciones
- Investigador Principal, Microbiological Research (GIMUR) Research Group , Universidad del Rosario
- Associate professor, Faculty of Natural Sciences , Universidad del Rosario
Mis intereses de investigación se enfocan en la comprensión de la epidemiología molecular, la ecología, la evolución y la interacción hospedero-patógeno de una gran variedad de patógenos como Trypanosoma cruzi, Leishmania, parásitos intestinales (Blastocystis, Giardia, Entamoeba y Cryptosporidium) y arbovirus mediante herramientas genómicas y transcriptómicas. Además, estoy interesado en la sistemática, biología, microbiota y genómica poblacional de vectores de enfermedades infecciosas.
Áreas De Investigación
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Afiliación
Publicaciones
publicaciones seleccionadas
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artículo académico
- SARS-CoV-2 in Transit: Characterization of SARS-CoV-2 genomes from Venezuelan migrants in Colombia 2021-9-1
- Identification of Multiple Blastocystis Subtypes in Domestic Animals From Colombia Using Amplicon-Based Next Generation Sequencing 2021-8-24
- Cluster characterization of SARS-CoV-2 in military personnel deployed to Egypt and subsequent introduction of B.1.1.7 and C.36 lineages to Colombia 2021-8-1
- Describing the intestinal microbiota of holstein fasciola-positive and-negative cattle from a hyperendemic area of fascioliasis in central colombia 2021-8-1
- Evolution and epidemic spread of SARS-CoV-2 in Colombia: A year into the pandemic 2021-7-3
- Clinical and Epidemiological Characterization of Acute Chagas Disease in Casanare, Eastern Colombia, 2012–2020 2021-7-23
- Epidemiological and molecular characterization of blastocystis infection in children attending daycare centers in medellín, Colombia 2021-7-1
- Spatial and temporal variability of visceral leishmaniasis in Colombia, 2007 to 2018 2021-7-1
- The Constant Threat of Zoonotic and Vector-Borne Emerging Tropical Diseases: Living on the Edge 2021-5-4
- Covid-19 and helminth infection: Beyond the th1/th2 paradigm 2021-5-1
- Characterizing SARS-CoV-2 genome diversity circulating in South American countries: Signatures of potentially emergent lineages? 2021-4-1
- Deciphering the introduction and transmission of sars-cov-2 in the colombian amazon basin 2021-4-1
- Repeat-Driven Generation of Antigenic Diversity in a Major Human Pathogen, Trypanosoma cruzi 2021-3-3
- Gut microbiota profiles in diarrheic patients with co-occurrence of Clostridioides difficile and Blastocystis 2021-3-1
- Phylogenomic evidence of reinfection and persistence of sars-cov-2: First report from Colombia 2021-3-1
- Association between physical activity and changes in intestinal microbiota composition: A systematic review 2021-2-1
- Striking lineage diversity of severe acute respiratory syndrome coronavirus 2 from non-human sources 2021-12-15
- Comparative analysis of the transcriptional responses of five Leishmania species to trivalent antimony 2021-12-1
- Contrasting SARS-CoV-2 RNA copies and clinical symptoms in a large cohort of Colombian patients during the first wave of the COVID-19 pandemic 2021-12-1
- Genetic diversity and population structure of Rhipicephalus sanguineus sensu lato across different regions of Colombia 2021-12-1
- Gut microbiota composition in health-care facility-and community-onset diarrheic patients with Clostridioides difficile infection 2021-12-1
- The potential risk of enzootic Trypanosoma cruzi transmission inside four training and re-training military battalions (BITER) in Colombia 2021-12-1
- Human urogenital myiasis caused by the ‘rat-tailed’ larvae of Palpada scutellaris (Fabricius, 1805) in Santander, eastern Colombia: A case report 2021-11-7
- Filling the gaps in Leishmania naiffi and Leishmania guyanensis genome plasticity 2021-11-13
- Molecular and clinical aspects of chronic manifestations in chagas disease: A state-of-the-art review 2021-11-1
- Development of an amplicon-based next-generation sequencing protocol to identify leishmania species and other trypanosomatids in leishmaniasis endemic areas 2021-10-1
- Poverty, Migration, and Chagas Disease 2021-1-11
- Autoantibodies against the immunodominant sCha epitope discriminate the risk of sudden death in chronic Chagas cardiomyopathy 2021-1-1
- Evaluation of the diagnostic performance of nine commercial RT-PCR kits for the detection of SARS-CoV-2 in Colombia 2021-1-1
- Lemierre's syndrome associated with hypervirulent Klebsiella pneumoniae: A case report and genomic characterization of the isolate 2021-1-1
- Microbial Communities’ Characterization in Urban Recreational Surface Waters Using Next Generation Sequencing 2021-1-1
- RT-PCR/MALDI-TOF mass spectrometry-based detection of SARS-CoV-2 in saliva specimens 2021-1-1
- Revisiting the heterogeneous global genomic population structure of leishmania infantum 2021-1-1
- Robust clinical detection of SARS-CoV-2 variants by RT-PCR/MALDI-TOF multitarget approach 2021-1-1
- Systematic review on the biology, ecology, genetic diversity and parasite transmission potential of Panstrongylus geniculatus (Latreille 1811) in Latin America 2021-1-1
- Updating changes in human gut microbial communities associated with Clostridioides difficile infection 2021-1-1
- Will the emergent SARS-CoV2 B.1.1.7 lineage affect molecular diagnosis of COVID-19? 2021-1-1
- Temporal Variation of the Presence of Rhodnius prolixus (Hemiptera: Reduviidae) Into Rural Dwellings in the Department of Casanare, Eastern Colombia 2020-9-27
- Human Chagas-Flow ATE-IgG1 for advanced universal and Trypanosoma cruzi Discrete Typing Units-specific serodiagnosis of Chagas disease 2020-8-6
- The arrival and spread of SARS-CoV-2 in Colombia 2020-8-6
- Identification of blood-feeding sources in Panstrongylus, Psammolestes, Rhodnius and Triatoma using amplicon-based next-generation sequencing 2020-8-31
- Complex ecological interactions across a focus of cutaneous leishmaniasis in Eastern Colombia: Novel description of Leishmania species, hosts and phlebotomine fauna: Ecological of cutaneous Leishmaniasis 2020-7-8
- Development of a multilocus sequence typing scheme for giardia intestinalis 2020-7-8
- Understanding the oral transmission of Trypanosoma cruzi as a veterinary and medical foodborne zoonosis 2020-7-29
- Transcriptional remodeling during metacyclogenesis in Trypanosoma cruzi I 2020-7-27
- Genetic diversity among sars-cov2 strains in South America may impact performance of molecular detection 2020-7-1
- Slight temperature changes cause rapid transcriptomic responses in Trypanosoma cruzi metacyclic trypomastigotes 2020-5-14
- Transcriptomic changes across the life cycle of Trypanosoma cruzi II 2020-5-14
- An interactive database of Leishmania species distribution in the Americas 2020-4-3
- Minor temperature shifts do not affect chromosomal ploidy but cause transcriptomic changes in Leishmania braziliensis promastigotes in vitro 2020-4-27
- Occurrence of blastocystis in patients with clostridioides difficile infection 2020-4-1
- Molecular detection and genotyping of intestinal protozoa from different biogeographical regions of Colombia 2020-3-9
- Usefulness of autocidal gravid ovitraps for the surveillance and control of Aedes (Stegomyia) aegypti (Diptera: Culicidae) in eastern Colombia 2020-3-31
- Human papillomavirus (HPV69/HPV73) coinfection associated with simultaneous squamous cell carcinoma of the anus and presumed lung metastasis 2020-3-22
- Taxonomy, evolution, and biogeography of the rhodniini tribe (Hemiptera: Reduviidae) 2020-3-1
- Intraspecific genomic divergence and minor structural variations in leishmania (Viannia) panamensis 2020-2-27
- Persistence of clonal azole-resistant isolates of Candida albicans from a patient with chronic mucocutaneous candidiasis in Colombia 2020-2-19
- Distribution, treatment outcome and genetic diversity of Leishmania species in military personnel from Colombia with cutaneous leishmaniasis 2020-12-9
- Epidemiological characterisation of asymptomatic carriers of COVID-19 in Colombia: A cross-sectional study 2020-12-7
- Culture-free genome-wide locus sequence typing (GLST) provides new perspectives on Trypanosoma cruzi dispersal and infection complexity 2020-12-16
- SARS-CoV-2 spread across the Colombian-Venezuelan border 2020-11-4
- Identification of Aedes (Diptera: Culicidae) Species and Arboviruses Circulating in Arauca, Eastern Colombia 2020-11-26
- Species-dependent variation of the gut bacterial communities across Trypanosoma cruzi insect vectors 2020-11-12
- Succinate dehydrogenase gene as a marker for studying Blastocystis genetic diversity 2020-11-1
- Genomic Diversification, Structural Plasticity, and Hybridization in Leishmania (Viannia) braziliensis 2020-10-16
- Microbiota characterization in Blastocystis-colonized and Blastocystis-free school-age children from Colombia 2020-10-16
- SARS-CoV-2 in the Amazon region: A harbinger of doom for Amerindians 2020-10-1
- Integrated genomic epidemiology and phenotypic profiling of Clostridium difficile across intra-hospital and community populations in Colombia 2019-8-5
- Evaluation of four rapid diagnostic tests for canine and human visceral Leishmaniasis in Colombia 2019-8-27
- A summary of Blastocystis subtypes in North and South America 2019-7-29
- Transcriptional responses of Leishmania (Leishmania) amazonensis in the presence of trivalent sodium stibogluconate 2019-7-12
- Evaluation of the multispecies coalescent method to explore intra-Trypanosoma cruzi i relationships and genetic diversity 2019-7-1
- High frequency of toxigenic Clostridium difficile and Clostridium perfringens coinfection among diarrheic patients at health care facility-onset (HCFO) and community-onset (CO) centers in Bogotá, Colombia 2019-6-3
- Dissecting the Heterogeneous Population Genetic Structure of Candida albicans: Limitations and constraints of the multilocus sequence typing scheme 2019-5-10
- Venezuela's humanitarian crisis, resurgence of vector-borne diseases, and implications for spillover in the region 2019-5-1
- Trypanosoma cruzi infection, discrete typing units and feeding sources among Psammolestes arthuri (Reduviidae: Triatominae) collected in eastern Colombia 2019-4-8
- Resurgence of Vaccine-Preventable Diseases in Venezuela as a Regional Public Health Threat in the Americas 2019-4-1
- A systematic review of the Trypanosoma cruzi genetic heterogeneity, host immune response and genetic factors as plausible drivers of chronic chagasic cardiomyopathy 2019-3-1
- Molecular and descriptive epidemiology of intestinal protozoan parasites of children and their pets in Cauca, Colombia: a cross-sectional study 2019-2-26
- Development of a Digital Droplet Polymerase Chain Reaction (ddPCR) assay to detect Leishmania DNA in samples from Cutaneous Leishmaniasis patients 2019-2-1
- Molecular epidemiology of dengue, yellow fever, Zika and Chikungunya arboviruses: An update 2019-2-1
- Taxonomical over splitting in the Rhodnius prolixus (Insecta: Hemiptera: Reduviidae) clade: Are R. Taquarussuensis (da Rosa et al., 2017) and R. Neglectus (Lent, 1954) the same species? 2019-2-1
- Genomic analyses reveal moderate levels of ploidy, high heterozygosity and structural variations in a Colombian isolate of Leishmania (Leishmania) amazonensis 2019-12-10
- Major changes in chromosomal somy, gene expression and gene dosage driven by Sb III in Leishmania braziliensis and Leishmania panamensis 2019-12-1
- Genomic epidemiology supports multiple introductions and cryptic transmission of Zika virus in Colombia 2019-11-12
- Genetic diversification of Panstrongylus geniculatus (Reduviidae: Triatominae) in northern South America.: Triatominae) in northern South America 2019-10-1
- Comparative genomics identifies potential virulence factors in Clostridium tertium and C. paraputrificum 2019-1-1
- Ecological niche modelling for predicting the risk of cutaneous leishmaniasis in the Neotropical moist forest biome 2019-1-1
- Unveiling the multilocus sequence typing (MLST) schemes and core genome phylogenies for genotyping chlamydia trachomatis 2018-8-22
- The effect of temperature increase on the development of Rhodnius prolixus and the course of Trypanosoma cruzi metacyclogenesis 2018-8-1
- Comparison of parasite loads in serum and blood samples from patients in acute and chronic phases of Chagas disease – CORRIGENDUM 2018-5-28
- Geospatial-temporal distribution of Tegumentary Leishmaniasis in Colombia (2007–2016) 2018-4-6
- Estimating the intra-taxa diversity, population genetic structure, and evolutionary pathways of Cryptococcus neoformans and Cryptococcus gattii 2018-4-24
- Comparison of parasite loads in serum and blood samples from patients in acute and chronic phases of Chagas disease 2018-4-17
- Identification of bat trypanosomes from Minas Gerais state, Brazil, based on 18S rDNA and Cathepsin-L-like targets 2018-3-1
- Evaluation of the analytical and diagnostic performance of a digital droplet polymerase chain reaction (ddPCR) assay to detect Trypanosoma cruzi DNA in blood samples 2018-12-1
- Molecular detection and genotyping of pathogenic protozoan parasites in raw and treated water samples from southwest Colombia 2018-10-26
- Description of Leishmania species among dogs and humans in Colombian Visceral Leishmaniasis outbreaks 2018-10-1
- New insights into Clostridium difficile (CD) infection in Latin America: Novel description of toxigenic profiles of diarrhea-associated to CD in Bogotá, Colombia 2018-1-30
- Analytical performance of a loop-mediated isothermal amplification assay for leishmania DNA detection in sandflies and direct smears of patients with cutaneous leishmaniasis 2018-1-1
- Spatial distribution, Leishmania species and clinical traits of Cutaneous Leishmaniasis cases in the Colombian army 2017-8-1
- Evaluation of a Multilocus Sequence Typing (MLST) scheme for Leishmania (Viannia) braziliensis and Leishmania (Viannia) panamensis in Colombia 2017-5-12
- Ecology of Trypanosoma cruzi I genotypes across Rhodnius prolixus captured in Attalea butyracea palms 2017-4-1
- Murine models susceptibility to distinct Trypanosoma cruzi i genotypes infection 2017-4-1
- RNA-seq in kinetoplastids: A powerful tool for the understanding of the biology and host-pathogen interactions 2017-4-1
- Determining Clostridium difficile intra-taxa diversity by mining multilocus sequence typing databases 2017-3-14
- Blastocystis subtyping and its association with intestinal parasites in children from different geographical regions of Colombia 2017-2-21
- Molecular epidemiology of Giardia, Blastocystis and Cryptosporidium among Indigenous children from the Colombian Amazon basin 2017-2-21
- Leishmania infection in bats from a non-endemic region of Leishmaniasis in Brazil 2017-12-1
- Community-acquired infection with hypervirulent Clostridium difficile isolates that carry different toxin and antibiotic resistance loci: A case report 2017-11-9
- Purification of Trypanosoma cruzi metacyclic trypomastigotes by ion exchange chromatography in sepharose-DEAE, a novel methodology for host-pathogen interaction studies 2017-11-1
- Analytical performance of Four Polymerase Chain Reaction (PCR) and real time PCR (qPCR) assays for the detection of six Leishmania species DNA in Colombia 2017-10-4
- Molecular and morphological characterization of Acanthamoeba isolated from corneal scrapes and contact lens wearers in Argentina 2017-10-1
- First Colombian consensus on congenital Chagas and clinical approach for women of child-bearing age diagnosed with Chagas 2017-1-1
- Molecular Diagnosis of Chagas Disease in Colombia: Parasitic Loads and Discrete Typing Units in Patients from Acute and Chronic Phases 2016-9-20
- Importation of hybrid human-associated Trypanosoma cruzi strains of southern South American origin, Colombia 2016-8-1
- Geographic distribution of human Blastocystis subtypes in South America 2016-7-1
- Taxonomy, diversity, temporal and geographical distribution of Cutaneous Leishmaniasis in Colombia: A retrospective study 2016-6-22
- Prevalence of Trypanosoma cruzi's Discrete Typing Units in a cohort of Latin American migrants in Spain 2016-5-1
- Host-Protozoan Interactions Protect from Mucosal Infections through Activation of the Inflammasome 2016-10-6
- High-Resolution Molecular Typing of Trypanosoma cruzi in 2 Large Outbreaks of Acute Chagas Disease in Colombia 2016-10-15
- Host and Toxoplasma gondii genetic and non-genetic factors influencing the development of ocular toxoplasmosis: A systematic review 2016-10-1
- Chlamydia trachomatis Frequency in a Cohort of HPV-infected colombian women 2016-1-25
- Untangling the transmission dynamics of primary and secondary vectors of Trypanosoma cruzi in Colombia: Parasite infection, feeding sources and discrete typing units 2016-1-12
- Detection of entamoeba histolytica by recombinase polymerase amplification 2015-9-1
- Blastocystis and urticaria: Examination of subtypes and morphotypes in an unusual clinical manifestation 2015-8-1
- Molecular diagnosis and genotype analysis of Giardia duodenalis in asymptomatic children from a rural area in central Colombia 2015-6-1
- Response to Tibayrenc and Ayala: Reproductive clonality in protozoan pathogens - Truth or artefact? 2015-12-1
- Risks associated with dispersive nocturnal flights of sylvatic Triatominae to artificial lights in a model house in the northeastern plains of Colombia 2015-11-19
- Molecular epidemiology of entamoeba: First description of Entamoeba moshkovskii in a rural area from central Colombia 2015-10-14
- Agreement of the Kato-Katz test established by the WHO with samples fixed with sodium acetate analyzed at 6 months to diagnose intestinal geohelminthes 2015-1-1
- Analytical validation of quantitative real-time PCR methods for quantification of trypanosoma cruzi DNA in blood samples from chagas disease patients 2015-1-1
- Comparative study of the biological properties of Trypanosoma cruzi I genotypes in a murine experimental model 2015-1-1
- Follow-up of an Asymptomatic Chagas Disease Population of Children after Treatment with Nifurtimox (Lampit) in a Sylvatic Endemic Transmission Area of Colombia 2015-1-1
- Retrospective distribution of Trypanosoma cruzi I genotypes in Colombia 2015-1-1
- Chagas disease (Trypanosoma cruzi) and HIV co-infection in Colombia 2014-9-1
- Reproductive clonality in protozoan pathogens - Truth or artefact? 2014-9-1
- From ancient to contemporary molecular eco-epidemiology of Chagas disease in the Americas 2014-8-1
- Development of Peptide-Based Lineage-Specific Serology for Chronic Chagas Disease: Geographical and Clinical Distribution of Epitope Recognition 2014-5-1
- Cytokine profiling in chagas disease: Towards understanding the association with infecting Trypanosoma cruzi discrete typing units (A benefit trial sub-study) 2014-3-7
- Blastocystis subtypes detected in humans and animals from Colombia 2014-3-1
- Trypanosome species in neo-tropical bats: Biological, evolutionary and epidemiological implications 2014-3-1
- First Report of Human Trypanosoma cruzi Infection Attributed to TcBat Genotype 2014-11-1
- Distribution of Trypanosoma cruzi discrete typing units in Bolivian migrants in Spain 2014-1-1
- Identification of Six New World Leishmania species through the implementation of a High-Resolution Melting (HRM) genotyping assay 2014-1-1
- Primer consenso colombiano sobre Chagas congénito y orientación clínica a mujeres en edad fértil con diagnóstico de Chagas 2014-1-1
- Genetic structure of Trypanosoma cruzi in Colombia revealed by a High-throughput Nuclear Multilocus Sequence Typing (nMLST) approach 2013-9-30
- Temporal variation of Trypanosoma cruzi discrete typing units in asymptomatic Chagas disease patients 2013-9-1
- Understanding the role of dogs (Canis lupus familiaris) in the transmission dynamics of Trypanosoma cruzi genotypes in Colombia 2013-9-1
- Validation of a Poisson-distributed limiting dilution assay (LDA) for a rapid and accurate resolution of multiclonal infections in natural Trypanosoma cruzi populations 2013-2-5
- Congenital and oral transmission of American trypanosomiasis: An overview of physiopathogenic aspects 2013-2-1
- Molecular Epidemiology of Human Oral Chagas Disease Outbreaks in Colombia 2013-2-1
- Retrospective molecular integrated epidemiology of Chagas disease in Colombia 2013-12-1
- The identification of two Trypanosoma cruzi I genotypes from domestic and sylvatic transmission cycles in Colombia based on a single polymerase chain reaction amplification of the spliced-leader intergenic region 2013-11-1
- Identification of Trypanosoma cruzi Discrete Typing Units (DTUs) through the implementation of a High-Resolution Melting (HRM) genotyping assay 2013-1-1
- Towards the establishment of a consensus real-time qPCR to monitor Trypanosoma cruzi parasitemia in patients with chronic Chagas disease cardiomyopathy: A substudy from the BENEFIT trial 2013-1-1
- Contemporary cryptic sexuality in Trypanosoma cruzi 2012-9-1
- Multiple mitochondrial introgression events and heteroplasmy in Trypanosoma cruzi revealed by maxicircle MLST and next generation sequencing 2012-4-1
- Prueba molecular Genotype®MTBDRplus, una alternativa para la detección rápida de tuberculosis multidrogorresistente 2012-3-1
- Phylogenetic reconstruction based on Cytochrome b (Cytb) gene sequences reveals distinct genotypes within Colombian Trypanosoma cruzi I populations 2011-7-1
- Trypanosoma cruzi I diversity: Towards the need of genetic subdivision? 2011-7-1
- International study to evaluate PCR methods for detection of Trypanosoma cruzi DNA in blood samples from Chagas disease patients 2011-1-1
- Chagas cardiomyopathy manifestations and trypanosoma cruzi genotypes circulating in chronic chagasic patients 2010-11-1
- Evaluation of adult chronic Chagas' heart disease diagnosis by molecular and serological methods 2009-12-1
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artículo editorial
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capítulo
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carta
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comentario
- Erratum: Complex ecological interactions across a focus of cutaneous leishmaniasis in Eastern Colombia: Novel description of Leishmania species, hosts and phlebotomine fauna (Royal Society Open Science (2020) 7 (200266) DOI: 10.1098/rsos.200266) 2020-8-1
- Potential negative effects of the free use of chloroquine to manage COVID-19 in Colombia 2020-5-26
- The Colombian peace deal and its impact on the evolution of tropical diseases agents 2018-1-1
- Erratum: Contemporary cryptic sexuality in Trypanosoma cruzi (Molecular Ecology (2012) 21 (4216-4226)) 2013-3-1
Estudios
Estudios realizados
- Doctorado en Biología, Universidad de los Andes