A5087393573- Stellar, planetary, and galactic studies
- Astronomy and Astrophysical Research
- Astronomical Observations and Instrumentation
- Astrophysics and Star Formation Studies
- Public Health and Environmental Issues
- Mosquito-borne diseases and control
- Health and Lifestyle Studies
- COVID-19 epidemiological studies
- Vaccine Coverage and Hesitancy
- SARS-CoV-2 and COVID-19 Research
- COVID-19 Clinical Research Studies
- History and Developments in Astronomy
- Food Safety and Hygiene
- Global Maternal and Child Health
- Public Health Policies and Education
- Maternal and Neonatal Healthcare
- HIV/AIDS Research and Interventions
- Data-Driven Disease Surveillance
- Virology and Viral Diseases
- Gamma-ray bursts and supernovae
- Galaxies: Formation, Evolution, Phenomena
- Physical Activity and Health
- HIV, Drug Use, Sexual Risk
- SARS-CoV-2 detection and testing
- Global Public Health Policies and Epidemiology
Instituto Nacional de Salud
2004-2024
Yenepoya University
2024
Universidad del Rosario
2005-2024
The Task Force for Global Health
2017-2021
London School of Hygiene & Tropical Medicine
2020
Universidad Cooperativa de Colombia
2020
Industrial University of Santander
2020
Imperial College London
2020
Alexander von Humboldt Biological Resources Research Institute
2020
Baylor College of Medicine
2020
In 2015 and 2016, Colombia had a widespread outbreak of Zika virus. Data from two national population-based surveillance systems for symptomatic virus disease (ZVD) birth defects provided complementary information on the effect pregnancies infant outcomes.We collected data regarding cases pregnant women with ZVD that were reported during period June through July 2016. The presence RNA was identified in subgroup these real-time reverse-transcriptase-polymerase-chain-reaction (rRT-PCR) assay....
The 2022 mpox outbreak disproportionately affected men who have sex with (MSM) and individuals history of HIV. This study investigated the prevalence HIV infection associated factors among cases in Colombia. A cross-sectional analysis 4,046 confirmed reported to Public Health Surveillance System between June 25 December 31, 2022, was conducted. a determined, were assessed using bivariate multivariate logistic regression. Most patients male (97%), median age 31 years (IQR = 27, 37). most...
Coronavirus disease (COVID-19) in Colombia was first diagnosed a traveler arriving from Italy on February 26, 2020. However, limited data are available the origins and number of introductions COVID-19 into country. We sequenced causative agent COVID-19, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), 43 clinical samples we collected, along with another 79 genome sequences Colombia. investigated emergence importation routes for SARS-CoV-2 by using epidemiologic, historical air...
<h3>PURPOSE</h3> Interventions tailored to sociopsychological factors associated with health behaviors have promise for reducing colorectal cancer screening disparities, but limited research has assessed their impact in multiethnic populations. We examined whether an interactive multimedia computer program (IMCP) expanded belief model could promote a sample. <h3>METHODS</h3> undertook randomized controlled trial, comparing IMCP self-efficacy, knowledge, barriers, readiness, test preference,...
To describe fetal and neonatal mortality due to congenital anomalies in Colombia.We analyzed all deaths a anomaly registered with the Colombian vital statistics system during 1999-2008.The registry included 213,293 7,216,727 live births. Of births, 77,738 (1.08%) resulted deaths. Congenital were responsible for 7321 (3.4% of deaths) 15,040 (19.3% deaths). The rate was 9.9 per 10,000 births deaths; 20.8 Mortality rates remained relatively stable study period. most frequent fatal heart defects...
Summary The genetic diversity of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has the potential to impact virus transmissibility and escape from natural infection- or vaccine-elicited neutralizing antibodies. Here, representative samples circulating SARS-CoV-2 in Colombia between January April 2021, were processed for genome sequencing lineage determination following nanopore amplicon ARTIC network protocol PANGOLIN pipeline. This strategy allowed us identify emergence...
We investigate the new and still poorly studied matter of so-called multiple stellar populations (MSPs) in Galactic globular clusters (GGCs). Studying MSPs their accumulated data can shed more light on formation evolution GGCs other closely related fundamental problems. focus strong relation between radial distribution evolutionary homogeneous stars U-based photometric characteristics nearby GGC NGC 6752 compare this with a similar we found 3201 1261. use our multi-color photometry fairly...
We report on evidence of the inhomogeneity (multiplicity) stellar population in Galactic globular cluster (GC) NGC 3201, which is irregularly reddened across its face. carried out a more detailed and careful analysis our recently published new multi-color photometry wide field with particular emphasis U band. Using photometric data corrected for differential reddening, we found first time two key signs cluster's radial variation GC. These are (1) an obvious trend color-position diagram,...
Abstract Coronavirus disease 2019 (COVID-19) was first diagnosed in Colombia from a traveler arriving Italy on February 26, 2020. To date, available data the origins and number or introductions of SARS-CoV-2 into country are limited. Here, we sequenced 43 clinical samples and—together with other 73 genomes sequences country—we investigated emergence routes importation COVID-19 using epidemiological, historical air travel phylogenetic observations. Our study provided evidence multiple...
Introducción. La pandemia de COVID es un desafío para la vigilancia en salud pública y una oportunidad evaluar sus fortalezas debilidades aras mejorar respuesta.Objetivo. Evaluar el desempeño del sistema colombiano durante los primeros 50 días COVID-19 país.Materiales métodos. Se analizaron datos publicados entre 6 marzo 24 abril 2020 por Instituto Nacional Salud Organización Mundial (OMS). consideraron evaluación: i) calidad según ley Benford ii) información, medida como diferencia fechas...
We have obtained new CCD photometry (with short exposures) of the Milky Way globular cluster M 79 using NTT under excellent seeing. The main-sequence turnoff point is at , ; horizontal-branch level blue edge instability strip . metallicity, estimated from positions "bump” on red giant branch, [Fe/H] discuss luminosity functions horizontal branch and asymptotic in particular, fragmentary structure other clusters. Our isochrone analysis shows that belongs to oldest Its age, scale Bergbusch &...
(Abriged)This work studies in more detail the stellar population, including its photometric properties and characteristics, rarely studied southern Galactic globular cluster NGC 1261. We focus on brighter sequences of cluster's color-magnitude diagram (CMD). Like our previous works, we rely upon photometry several passbands to achieve reliable results conclusions. carried out analyzed new multi-color 1261 UBVI reaching below turnoff point all a fairly extended field, about 14'x14'. found...
Abstract Background Zika virus (ZIKV) infection during pregnancy can cause infant brain and eye abnormalities has been associated with adverse neurodevelopmental outcomes in exposed infants. Evidence is limited on ZIKV’s effects children infected postnatally within the first year of life. Objective To determine whether any occurred early childhood for ZIKV infancy, given neurotoxicity rapid development that occurs infancy childhood. Methods The Colombia Instituto Nacional de Salud (INS)...
Multiple studies have described increased risk of severe coronavirus disease (COVID-19) among pregnant women compared to nonpregnant women. The in middle-income countries where the distributions age groups and preexisting conditions may differ is less known.To determine whether with SARS-CoV-2 infection are at for COVID-19 Colombia.We analysed national surveillance data from Colombia, aged 15-44 years laboratory-confirmed by molecular or antigen testing, 6 March 2020 12 December 2020. An...
Introduction Dengue is currently the fastest-spreading mosquito-borne viral illness in world, with over half of world's population living areas at risk dengue. As dengue continues to spread and become more a health burden, it essential have tools that can predict when where outbreaks might occur better prepare vector control operations communities' responses. One such predictive tool, Early Warning Response System for climate-sensitive diseases (EWARS-csd), primarily uses climatic data alert...
<i>Aims. <i/>This paper aims at further studying one of the nearby Galactic globular clusters (GCs), NGC 3201. It is known to experience notable irregular variability reddening across its face. By relying on our previous studies and findings by developing them, we focus brighter sequences color-magnitude diagram (CMD) cluster's characteristics.<i>Methods. <i/>We carried out analyzed new multi-color photometry 3201 in <i>UBVI<i/> reaching below turnoff point all passbands a fairly large...
This prospective cohort investigation analyzed the long-term functional and neurologic outcomes of patients with Zika virus-associated Guillain-Barré syndrome (GBS) in Barranquilla, Colombia.Thirty-four GBS cases were assessed a median 17 months following acute illness. We demographics, results Overall Disability Sum Scores (ODSS), Hughes Score (HDS), Zung Depression Scale (ZDS), Health Related Quality Life (HRQL) questionnaires; compared indices normative sample neighborhood-selected...
Introduction: Public health surveillance together with good sanitary decisions is essential for the proper management of SARS-CoV-2 pandemic. Objective: To compare performance Colombian departments based on quality data and to build national ranking. Materials methods: We analyzed accumulated cases published between March 6 September 1, 2020, by Instituto Nacional de Salud. achieve comparability, analyses considered day first case was diagnosed as analysis date each department. The...
This paper is devoted to photometric study of the Galactic globular cluster (GGC) NGC 6752 in UBVI, focusing on multiplicity its stellar population. We emphasize that our U passband (1) narrower than standard one due smaller extension blueward and (2) redshifted by ∼300 Å relative counterparts, such as HST F336W filter. Accordingly, both spectral features encompassed it effects revealed are somewhat different recent studies 6752. Main sequence stars bluer − B less centrally concentrated, red...