Publications by authors named "Miguel Cabada"

Acute undifferentiated febrile illness (AUFI) is the main cause of medical attention in the tropics worldwide. Malaria, arboviral diseases, and leptospirosis are the most important etiologies. These are highly endemic in the Urabá antioqueño, Colombia, being the main causes of fever in several municipalities in this region.

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Characterizing the epidemiology of circulating respiratory pathogens during the COVID-19 pandemic could clarify the burden of acute respiratory infections and monitor outbreaks of public health and military relevance. The US Department of Defense supported 2 regions for influenza-like illness and severe acute respiratory infections surveillance, one in the Middle East through US Naval Medical Research Unit EURAFCENT, and another in Latin America through US Naval Medical Research Unit SOUTH. During 2020‒2022, coinciding with the COVID-19 pandemic, we collected a total of 16,146 nasopharyngeal and oropharyngeal swab samples from sentinel sites in Jordan (n = 11,305) and Latin America (n = 4,841).

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Strongyloidiasis is a neglected, soil-transmitted helminth infection prevalent worldwide. The true burden of strongyloidiasis is unclear due to the lack of sensitive, field-friendly diagnostic tests. PCR tests to detect DNA in stool are sensitive and specific, but the need for expensive equipment limits their use in endemic regions.

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Subcapsular liver hematoma is an uncommon and underdiagnosed manifestation of fascioliasis. We report 6 cases and review 21 previous reports. The mean age was 51 years; 12 cases were from Peru; and 18 were women.

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Article Synopsis
  • Many people travel to big religious events every year, with around 600 million trips to sites like churches, mosques, temples, and more.
  • Each religion has its own unique pilgrimage traditions, but they often share common health risks like infections and accidents.
  • There is a need for better ways to track and share health information related to these religious gatherings to keep everyone safe.
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Background: Understanding mortality among travellers is essential for mitigating risks and enhancing travel safety. However, limited evidence exists on severe illnesses and injuries leading to death among travellers, particularly in low- and middle-income countries and remote regions.

Methods: We conducted a retrospective census study using country-level observational data from death certificates of travellers of seven South American countries (Argentina, Brazil, Chile, Colombia, Ecuador, Peru, and Uruguay) from 2017 to 2021.

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is a bacterial genus that includes several pathogenic species related to leptospirosis. In Colombia, leptospirosis is a mandatorily reported disease, widely distributed across the country. In the Villeta municipality, leptospirosis has been identified as an important cause of febrile illness; however, to date, no studies have been performed to identify the circulating species.

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Article Synopsis
  • - The study focuses on Acute Undifferentiated Febrile Illnesses (AUFIs) in Latin America, aiming to improve understanding of their causes and facilitate outbreak detection, which is currently limited by inadequate diagnostics and fragmented healthcare systems.
  • - A collaborative research protocol involving institutions from several countries will collect clinical data and samples from patients with fever lasting less than 8 days, specifically targeting viral, bacterial, and parasitic pathogens.
  • - The research team will analyze blood and other specimens using advanced testing methods, with findings aimed to be shared with health authorities to enhance public health responses to AUFIs.
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has a complex lifecycle with multiple intermediate and definitive hosts and influenced by environmental factors. The disease causes significant morbidity in children and its prevalent worldwide. There is lack of data about distribution and burden of the disease in endemic regions, owing to poor efficacy of the different diagnostic methods used.

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Anemia is a complex condition associated with diet, chronic infections, and blood loss. Children living at high altitudes have higher absolute hemoglobin levels due to hypoxemia. However, they are exposed to repeated infections and dietary limitations.

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is a trematode causing acute and chronic infection. A 33-year-old Canadian woman with eosinophilic liver abscesses and no relevant travel was diagnosed with infection is reported in livestock in Alberta. This is the first case of locally acquired fascioliasis in Canada in >100 years.

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is a trematode parasite distributed worldwide. It is known to cause disease in mammals, producing significant economic loses to livestock industry and burden to human health. After ingestion, the parasites migrate through the liver and mature in the bile ducts.

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Background: The wellbeing and safety of international tourists is a paramount concern for governments and stakeholders. Mortality among travellers and the causes of death serve as a significant metric of destination safety. We describe the epidemiology and causes of death among international travellers in Peru.

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Background: Acute undifferentiated febrile illness (AUFI) is one of the leading causes of illness in tropical regions. Although malaria is the most important cause, other pathogens such as Dengue (DENV), and recently, Coronavirus Disease 2019 (COVID-19) have gained importance. In Colombia, few studies aimed to identify the etiology of AUFI.

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Nosocomial myiasis is a rare event that has a higher incidence in the hospitals of poor and developing countries. The presence of nosocomial myiasis reflects the need for improved medical facilities and increased awareness among healthcare personnel. Severely ill patients are more susceptible, such as those with impaired consciousness, paralysis, and underlying diseases.

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International travel contributes to the global spread of antimicrobial resistance. Travelers' diarrhea exacerbates the risk of acquiring multidrug-resistant organisms and can lead to persistent gastrointestinal disturbance post-travel. However, little is known about the impact of diarrhea on travelers' gut microbiomes, and the dynamics of these changes throughout travel.

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Triclabendazole (TCBZ) resistance is an emerging problem in fascioliasis that is not well understood. Studies including small numbers of parasites fail to capture the complexity of susceptibility variations between and within Fasciolahepatica populations. As the first step to studying the complex resistant phenotype−genotype associations, we characterized a large sample of adult F.

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Article Synopsis
  • Fasciola hepatica is a largely overlooked parasitic infection affecting both human health and livestock, particularly prevalent in the Andean Altiplano region, which holds about 50% of global infections.
  • In a study involving 2070 households and 2420 livestock samples in Anta province, Peru, frequencies of fascioliasis were assessed through fecal examination, revealing a 30.9% infection rate in livestock, with sheep having the highest rate at 40.8%.
  • The research found significant spatial associations between positive livestock feces and infected children in households, indicating that being within 50-200 meters of infected cattle feces increases the risk of fasciola infection in children, while also highlighting potential
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Article Synopsis
  • SARS-CoV-2 has led to over 4 million deaths globally, creating a need for effective prognostic tools to predict which COVID-19 patients may develop severe respiratory failure.
  • A retrospective cohort study analyzed data from hospital admissions in Texas to identify predictors of severe hypoxemic respiratory failure within the first 12 hours of patient admission.
  • The study found that levels of lactate dehydrogenase, Quick Sequential Organ Failure Assessment scores, and the neutrophil to lymphocyte ratio were significant predictors, with a model demonstrating an area under the curve of 0.84, indicating strong predictive validity that needs further validation.
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School-age children bear the highest burden of fascioliasis in endemic countries. Few studies have addressed Fasciola in preschool children. We performed a secondary data analysis using two Fasciola databases from Cusco, Peru, comparing preschoolers with elementary school children.

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Fascioliasis is a foodborne trematode endemic worldwide. Children under 15 years have the highest prevalence of infection. We hypothesized that acute fascioliasis would be associated with more pronounced cytokine changes than in chronic disease or no helminth infections.

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Background: Acute mountain sickness (AMS) may occur after rapid ascents to altitudes >2500 m. Cusco (3350 m) in Peru is a popular destination for altitude inexperienced travellers. This study aimed at evaluating the incidence and risk factors for AMS among a cohort of foreign Spanish language students in Cusco.

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Fascioliasis is a zoonotic trematode infection that is endemic in the highlands of Peru. Chronic fascioliasis can be asymptomatic and remain undiagnosed for years. Chronic malnutrition in children, as manifested by stunting, leads to delayed cognitive development and lost productivity.

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We conducted a retrospective cohort study of children who had chronic fascioliasis in the highlands of Peru to determine triclabendazole treatment efficacy. Children passing Fasciola eggs in stool were offered directly observed triclabendazole treatment (>1 doses of 10 mg/kg). Parasitologic cure was evaluated by using microscopy of stool 1-4 months after each treatment.

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Article Synopsis
  • Fascioliasis is a zoonotic infection causing significant economic losses in livestock, with prevalence and financial impact varying by location and diagnostic methods.
  • A pilot study in the Anta province of Peru found that 62.5% of 2009 cattle were infected, with higher rates observed after the rainy season.
  • Bile microscopy was more effective than liver condemnation in diagnosing infections, and both methods are suggested to be used together for better evaluation of fascioliasis in livestock, indicating a need for larger studies to confirm these findings.
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