http://repositorio.usfq.edu.ec/handle/23000/13081 Tue, 14 Apr 2026 18:10:29 GMT 2026-04-14T18:10:29Z http://repositorio.usfq.edu.ec/handle/23000/15188 Title: Dynamics of foodborne bacteria and their resistance to antimicrobials Authors: Montero Toro, Lorena Patricia Description: In Ecuador, there is currently no public health surveillance system dedicated to monitoring the use of antimicrobial agents in food-producing animals. The emergence of resistance in foodborne bacteria such as Escherichia coli and pathogenic Campylobacter spp. is closely linked to the use of antibiotics in these animals. Infections caused by these resistant bacteria have been well-documented in humans, and as antimicrobial resistance (AMR) continues to increase, treatment failures may become more frequent due to the reduced efficacy of commonly used antibiotics... Tue, 01 Jul 2025 00:00:00 GMT http://repositorio.usfq.edu.ec/handle/23000/15188 2025-07-01T00:00:00Z http://repositorio.usfq.edu.ec/handle/23000/13331 Title: Transmission mechanisms of Extended Spectrum Beta-Lactamase (ESBL) genes among human and domestic animals in Ecuador Authors: Salinas Toledo, Liseth Alexandra Abstract: La resistencia antimicrobiana (RAM) constituye una amenaza a la salud pública mundial pero especialmente en países de ingresos bajos y medianos debido al uso excesivo de antimicrobianos, falta de aplicación de regulaciones de venta de antimicrobianos, condiciones de saneamiento precarias y hacinamiento. El uso de antimicrobianos en producción animal para consumo intensifica la propagación de RAM, particularmente en sistemas de pequeña escala, donde existe un contacto estrecho entre humanos y animales, así como con sus desechos... Description: Antimicrobial resistance (AMR) is an urgent global public health threat that affects predominantly to low and middle-income countries (LMICs) due to antimicrobial overuse, poor sanitation, lack of enforcement of laws restricting the free purchase of antimicrobials, and overcrowding. The indiscriminate use of antimicrobials in food-animal production intensifies AMR spread, especially within small-scale systems where humans have close contact with domestic animals and their waste... Mon, 01 Jan 2024 00:00:00 GMT http://repositorio.usfq.edu.ec/handle/23000/13331 2024-01-01T00:00:00Z http://repositorio.usfq.edu.ec/handle/23000/13301 Title: The use of molecular tools to study outbreaks of tropical febrile diseases with emphasis in arbovirosis Authors: Márquez Aguilar, Sully Estefanía Abstract: En los últimos 20 años, se ha observado en todo el mundo la aparición y resurgimiento de patógenos nuevos y conocidos (virus, bacterias, parásitos). La incidencia y prevalencia de diferentes patógenos, valores que miden niveles de transmisión e infección, puede variar según varios factores como la ubicación (altitud, latitud, área urbana o rural, las condiciones ambientales (estación, temperatura, precipitación, humedad), grupo etario, la inmunidad previa, acceso a educación, factores culturales, comportamientos sociales, etc... Description: Over the past 20 years, the emergence and resurgence of new and known pathogens (viruses, bacteria, parasites) has been observed worldwide. The incidence and prevalence of different pathogens can vary depending on several factors such as location (altitude, latitude, urban or rural area, environmental conditions (season, temperature, precipitation, humidity), age group, previous immunity, access to education, cultural factors, social behaviors, etc... Fri, 12 Jan 2024 00:00:00 GMT http://repositorio.usfq.edu.ec/handle/23000/13301 2024-01-12T00:00:00Z http://repositorio.usfq.edu.ec/handle/23000/13113 Title: Evolutionary steps in the conversion of environmental bacteria into opportunistic hospital pathogens : Origin and Evolution of Nosocomial Pseudomonas aeruginosa Authors: Vasco Aguas, Gabriela Piedad Abstract: El origen de nuevos agentes patógenos es una de las mayores preocupaciones para la humanidad por motivos de una posible diseminación rápida y con consecuencias graves tales como incremento en la mortalidad y la morbilidad humanas y de otros animales. En este manuscrito, describo una serie de experimentos cuyo objetivo es investigar el origen de Pseudomonas aeruginosa, un organismo patógeno oportunista y una bacteria ambiental... Description: The origin of pathogens is a major concern for humanity due to their potential to spread rapidly and cause significant morbidity and mortality. In this manuscript, I describe a series of experiments designed to investigate the origin of Pseudomonas aeruginosa, an opportunistic pathogen and environmental bacterium... Tue, 09 Jan 2024 00:00:00 GMT http://repositorio.usfq.edu.ec/handle/23000/13113 2024-01-09T00:00:00Z