A5072887339- Viral gastroenteritis research and epidemiology
- Salmonella and Campylobacter epidemiology
- Plant Pathogens and Resistance
- Hepatitis Viruses Studies and Epidemiology
- Viral Infections and Immunology Research
- Plant Disease Resistance and Genetics
- Plant tissue culture and regeneration
- Helicobacter pylori-related gastroenterology studies
- Antibiotic Use and Resistance
- Crop Yield and Soil Fertility
- Weed Control and Herbicide Applications
- Genetic factors in colorectal cancer
- Antibiotic Resistance in Bacteria
- Wheat and Barley Genetics and Pathology
- Gastric Cancer Management and Outcomes
- Turfgrass Adaptation and Management
- Plant Parasitism and Resistance
- Cervical Cancer and HPV Research
- Composting and Vermicomposting Techniques
- Zoonotic diseases and public health
- Escherichia coli research studies
- Pharmaceutical and Antibiotic Environmental Impacts
- Child Nutrition and Water Access
- Marine Bivalve and Aquaculture Studies
- Plant Pathogens and Fungal Diseases
Universidad de las Fuerzas Armadas ESPE
2014-2024
Universitat de València
2020
Instituto Nacional de Investigaciones Agropecuarias
2013
Universidad San Francisco de Quito
2006-2012
Environmental change plays a large role in the emergence of infectious disease. The construction new road previously roadless area northern coastal Ecuador provides valuable natural experiment to examine how changes social and environment, mediated by construction, affect epidemiology diarrheal diseases. Twenty-one villages were randomly selected capture full distribution village population size distance from main (remoteness), these compared with major center region, Borbón, that lies on...
Enteroinvasive Escherichia coli (EIEC) causes dysentery; however, it is less widely reported than other etiological agents in studies of diarrhea worldwide. Between August 2003 and July 2005, stool samples were collected case-control 22 rural communities northwestern Ecuador. Infection was assessed by PCR specific for LT STa genes enterotoxigenic E. (ETEC), the bfp gene enteropathogenic (EPEC), ipaH both enteroinvasive Shigellae. The pathogenic most frequently identified EIEC (3.2 cases/100...
The evolution of antibiotic resistance (AR) increases treatment cost and probability failure, threatening human health worldwide. relative importance individual use, environmental transmission rates introduction resistant bacteria in explaining community AR patterns is poorly understood. Evaluating their requires studying a region where they vary. construction new road previously roadless area northern coastal Ecuador provides valuable natural experiment to study how changes the social...
Diarrheal risk associated with Plesiomonas shigelloides infection was assessed in rural communities northwestern Ecuador during 2004-2008. We found little evidence that single P. is diarrhea but stronger co-infection rotavirus causes diarrhea.
In Ecuador, cervical cancer is the third most common among women and second cause of cancer-related death in women. Although HPV represents a serious public health problem worldwide, information about its prevalence genotypes remote communities Ecuador limited. The aim this study was to determine distribution ethnic minority from two northwestern region Ecuador: Afro-Ecuadorians Chachis (Amerindian group).
Abstract Previous studies suggest that the emerging G9P[8] genotype was most prevalent rotavirus in Ecuador during 2005. This present study provides a temporal analysis of distribution genotypes two locations within by adding additional years (2006 — early 2008) to originally reported 2005 data. Data were collected rural (northern coastal Ecuador) and urban (Quito) area. In area, community sample cases (those presenting diarrhea) controls not between August 2003 March 2008 resulting total...
Abstract During the past decade, rotavirus genotype G9 has spread throughout world, adding to and sometimes supplanting common genotypes G1–G4. We report evidence of this in a population sample within rural Ecuador. A total 1,656 stool samples were collected from both patients with diarrhea asymptomatic residents 22 remote communities northwestern Ecuador August 2003 through February 2006. Rotavirus was detected 23.4% case-patients 3.2% controls. From these 136 rotavirus-positive samples,...
Abstract Holm oak trees ( Quercus ilex L.) mortality is increasing worryingly in the Mediterranean area last years. To a large degree this caused by oomycete Phytophthora spp., which responsible for forest decline and dieback evergreen areas of southwestern Iberian Peninsula. This study based on possibility applying chemical elicitors or filtered extracts to holm somatic embryos (SE) order induce epigenetic memory, priming, that may increase tolerance pathogen future infections. end, we...
To assess the molecular events exerted by Helicobacter pylori interacting directly with gastric epithelial cells, an improved procedure for microbial DNA isolation from stained hematoxilin-eosin biopsies was developed based on laser micro-dissection (LM) [1]. Few articles have described use of LM to select and detect H. genome formalin-fixed paraffin embedded tissue [2]. improve yield quality isolated contacting intestinal following conditions were established after modification QIAamp Micro...
This study compares the Zucconi test (ZT) and a plate bioassay (PB) to assess possible phytotoxicity of two composts assesses possibility determine optimal rates compost amendment soil using PB. The TZ was done Lepidium sativum L., while for PB Hordeum vulgare Lactuca sativa L. were used. first tested came from treatment plant that processes organic fraction solid municipal waste regarded have only low stability (C1), second an agro-industrial with good maturity index (C2) (Experiment 1)....
Late blight, caused by the oomycete Phytophthora infestans, is a threat to potato‐cropping systems worldwide. In Ecuadorian Andes, despite high late blight incidence in foliage, tuber rare. this work, hypothesis that Andean soils are naturally suppressive P. infestans infection was evaluated. Soils from four potato‐growing regions were assessed for disease suppressiveness determining effects of soil heat treatment on sporangia and their ability infect potato slices after 1, 8, 15 30 days...