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February 2000 - present
Publications
Publications (26)
Human toxocariasis is one of the neglected helminthiases and it is caused by the zoonotic roundworm species Toxocara canis and Toxocara cati. Diagnosis of human toxocariasis is based on the combination of clinical, parasitological, and epidemiological criteria, as well as serology tests that detect anti-Toxocara antibodies. Notwithstanding, due to...
Multilocus Sequence Typing has become a useful tool for the study of the genetic diversity and population structure of different organisms. In this study, a MLST approach with seven loci (CP47, MS5, MS9, MSC6-7, TP14, and gp60) was used to analyze the genetic diversity of Cryptosporidium hominis and Cryptosporidium parvum isolated from 28 Colombian...
Cryptosporidium is a leading cause of waterborne outbreaks globally, and Cryptosporidium hominis and C. parvum are the principal cause of human cryptosporidiosis on the planet. Thanks to the advances in Next-Generation Sequencing (NGS) sequencing and bioinformatic software development, more than 100 genomes have been generated in the last decade us...
Introduction: HIV infection is still a public health problem worldwide and co-infections with other infectious agents including intestinal parasites are of particular concern, mainly in developing countries like Colombia.
Objective: To conduct a cross-sectional study in patients attending an HIV care program in Antioquia given that there have been...
Cystoisospora belli is an intestinal Apicomplexan parasite associated with diarrheal illness and disseminated infections in humans, mainly immunocompromised individuals such as those living with the human immunodeficiency virus (HIV) or acquired immunodeficiency syndrome (AIDS). An irregular administration of highly active antiretroviral therapy (H...
Recent studies have shown how intestinal parasites can modulate gut microbiota. This observation is not surprising since the human intestinal lumen, like any other niche, is a battlefield of microbial competition, and Eukaryotes can affect bacterial populations. Intestinal pathogenic protist has been associated with reshaping the microbial communit...
Cryptosporidium spp. are apicomplexan protozoa associated with chronic diarrhea in AIDS and other immunocompromised patients, and one of the commonest causes of childhood diarrhea and malnutrition, particularly in low-income settings. In Colombia, there are few molecular epidemiological studies on Cryptosporidium spp.; thereby, the transmission dyn...
Brucella canis, a Gram-negative coccobacilli belonging to the genus Brucellae, is a pathogenic bacterium that can produce infections in dogs and humans. Multiple studies have been carried out to develop diagnostic techniques to detect all zoonotic Brucellae. Diagnosis of Brucella canis infection is challenging due to the lack of highly specific and...
The study of the burden that parasites can exert upon the bacterial gut microbiota was restricted by the available technologies and their costs. Currently, next-generation sequencing coupled with traditional methodologies allows the study of eukaryotic parasites (protozoa and helminths) and its effects on the human bacterial gut microbiota diversit...
Purpose of Review
Giardiasis is a major human intestinal disease worldwide and the most common cause of diarrhea in developing countries especially among children. In chronic infection, it may result in harmful effect on cognition, intelligence, and psychomotor development in children. This article aims to review the current prevalence of human gia...
Cutaneous leishmaniasis (CL) is a neglected tropical disease with a serious public health problem in Colombia. Clinical, epidemiological and experimental evidence suggests that an effective vaccine against CL is, in principle, possible. However, no effective vaccine for human use is currently available. Using a CL murine model by Leishmania (Vianni...
Among primates, the Neotropical Callitrichid monkeys (tamarins and marmosets) exhibit a particular ability to adapt to disturbed and urbanized environments. However, little is known about physiological and health status in contrasting ecological contexts. An example of adaptation to urban environments is the white-footed tamarin (Saguinus leucopus)...
Introduction:
Toxocara canis is a pathogenic nematode of canines which can be accidentally transmitted to humans. Although serology is the most important diagnostic tool for this zoonosis, diagnostic kits use crude excretion/secretion antigens, most of them being glycoproteins which are not species-specific and may cross-react with antibodies gene...
Introducción. Toxocara canis es un nematodo patógeno de cánidos que accidentalmente puede ser transmitido a los humanos. A pesar de la importancia de la serología para el diagnóstico de esta zoonosis, los kits diagnósticos usan antígenos crudos de excreción-secreción, en su mayoría glucoproteínas que no son específicas de especie, por lo cual puede...
El estudio de individuos en cautiverio de primates Neotropicales ha permitido conocer aspectos básicos de su biología. Sin embargo las condiciones medioambientales pueden determinar diferencias ecológicas y fisiológicas en poblaciones silvestres. En el caso del tití gris (Saguinus leucopus), primate endémico colombiano, diferentes parámetros fisiol...
While much of the natural history of Neotropical primates has been revealed through studies conducted in captive individuals, environmental factors may impose ecological and physiological differences in free-range populations. For the white-footed tamarin (Saguinus leucopus), a primate endemic to Northwest Colombia, physiological parameters that ha...
La paragonimiasis es una zoonosis parasitaria, de transmisión alimentaria, causada por especies de tremátodos del género Paragonimus, presente en áreas tropicales y subtropicales de Asia, África y América. El ser humano se infecta mediante la ingestión de crustáceos de agua dulce crudos o mal cocidos. La infección afecta principalmente los pulmones...
Paragonimiasis is a parasitic, food-borne zoonosis, caused by species of trematodes of the genus Paragonimus, found in tropical and subtropical areas of Asia, Africa and America. Human beings become infected by ingestion of raw or undercooked freshwater shellfish. The infection primarily affects the lungs, with the development of multiple clinical...
The White-footed tamarin (Saguinus leucopus) is an endangered species endemic to North-west Colombia. Although there is an ongoing conservation plan, there has not been any systematic study of the population structure, ecological interactions or natural history of this species. This study aims to identify the most prevalent blood and fecal parasite...
Introduction: Human beings are exposed to the parasites present in their habitat. This situation poses a public health problem, especially in underdeveloped countries such as Colombia. The pediatric population is the most vulnerable, particularly that of communities in poor socioeconomic conditions. Objective: To determine the prevalence of intesti...
Giardia intestinalis infection is prevalent throughout the world and widely distributed in developing countries. In general, children display serious consequences to their state of health, including slow height-weight development; therefore, the main aim of this study was to determine the association between Giardia infection and the nutritional st...
Leishmaniasis is found in natural foci of infection where both sand fly vectors and mammalian reservoirs of Leishmania are present.
To report for the first time the presence of Leishmania (Leishmania) mexicana Biagi, 1953, in the village of San Matías, municipality of Gomez Plata, Department of Antioquia.
The parasite was isolated from a patient wi...
Introducción. La leishmaniaisis es una enfermedad encontrada en focos naturales de infección donde están presentes insectos vectores y mamíferos reservorios deLeishmania.
Objetivo. Registrar por primera vez la presencia de Leishmania (Leishmania) mexicana Biagi, 1953, en el corregimiento de San Matías, municipio de Gómez Plata, departamento de Ant...
