Colombian ocular infectious epidemiology study (COIES): presumed ocular tuberculosis incidence and sociodemographic characterization, 2015-2020.

PURPOSE: This study aims to describe the incidence and geographical distribution of presumed ocular tuberculosis (POTB) in Colombia between 2015 and 2020 based on the Colombian Ministry of Health and Social Protection data. METHODS: We conducted a claims-based study using the Integrated Social Protection Information System database from the Colombian Ministry of Health. We used the specific code of the International Classification of Diseases for Ocular Tuberculosis (A18.5) and tuberculosis from 2015 to 2020 to estimate the incidence and the demographic status of the disease in Colombia. We used STROBE guidelines. RESULTS: During the 6 years of study, the crude unadjusted incidence was 0.2 new cases of POTB in one million consulting patients and 55 new cases of POTB in 100,000 patients with TB showing a decreasing pattern of the disease. From the 28 new cases, the mean age of presentation was 41.4 years (SD ± 25.3) with a female predominance (60.7% of the cases). Distribution by age shows a higher proportion of cases in groups 15-19 (14%), 20-24 (11%), 55-59 (11%), and 60-64 (11%) years of age. The geographic analysis showed a higher number of cases in Andean region, followed by the Caribbean and Pacific regions. CONCLUSIONS: This is the first study that determines the incidence of POTB in a developing country from Latin America. POTB incidence in Colombia is lower than the reported worldwide. It could be attributed to a low burden of Tuberculosis in Colombia, underdiagnosis, and a low rate of immigration from countries with a high burden of TB.

An integrated ecological approach to countering targeted violence on the U.S.-Mexico border: Insights and lessons learned.

Well-integrated and productive communities are an asset to the development and advancement of our nation, and they have an important role to play in planning, learning, and enforcing safety to enhance national and border security. REACH (Resilience, Education, Action, Commitment, and Humanity) is a community-based project housed at The University of Texas at El Paso that aims to prevent targeted violence and domestic terrorism in El Paso County. We integrated three frameworks (i.e., Whole Community Preparedness, Socio-Ecological Model, and Global Citizen Education) to involve local residents in efforts to combat and mitigate targeted violence. REACH had two goals: to (1) prevent targeted violence and domestic terrorism through education, outreach, and community capacity-building aimed at identifying and deterring radicalization (primary prevention) and (2) reduce the short-term and long-term impact and prevent re-occurrence of targeted violence and domestic terrorism (secondary and tertiary prevention). Overall, our project served 8,934 participants directly and reached many more through our media cavmpaigns and outreach efforts during our 2 years of project implementation (2021-2023). Our project design may serve as an implementation model for other community-based projects on the U.S.-Mexico border and can be replicated with other target populations in the U.S. Insights and lessons learned from this project are discussed.

Using participatory action research to reimagine community mental health services in Colombia: a mixed-method study protocol.

INTRODUCTION: Mental healthcare systems are challenged by how they hear and respond to what marginalised communities experience as drivers of mental distress. In Colombia, this challenge intersects with wider challenges facing post-conflict reconstruction. Our pilot study will explore the feasibility and acceptability of a participatory approach to developing community-led participatory interventions for community mental health systems strengthening and mental health improvement, in two sites in Caquetá, Colombia. METHODS AND ANALYSIS: The project is divided into three distinct phases aligned with community participatory action research cycles: diagnostic, intervention and evaluation. This allows us to use a participatory approach to design a community-led, bottom-up intervention for mental health systems strengthening and the promotion of mental health and well-being.The diagnostic phase explores local understandings of mental health, mental distress and access to mental health services from community members and health providers. The intervention stage will be guided by a participatory Theory of Change process. Community priorities will inform the development of a participatory, learning and action (PLA) informed group intervention, with a community linkage forum. The pilot of the PLA intervention will be evaluated using MRC process evaluation guidelines. ETHICS AND DISSEMINATION: This project has received ethical approval from two sources. Universidad de Los Andes (2021-1393) and the University College London (16127/005). Dissemination of findings will include academic publications, community forums, policy briefs and visual media (cartoons, pod casts and short films).

Preventive measures focused on the urban-rural interface protect rural food-producing communities from SARS-CoV-2. / Medidas preventivas centradas en la interfaz urbano-rural protegen a las comunidades rurales productoras de alimentos del SARS-CoV-2

INTRODUCTION: Rural food-producing communities are fundamental for the development of economic activities associated with sustainability and food security. However, despite the importance of rurality in Colombia, preventive strategies continue to be implemented homogeneously, without considering the dynamics of SARS-CoV-2 in rural food-producing communities. OBJECTIVE: To model real areas in Colombia involving rural and urban populations that have intrinsic SARS-CoV-2 transmission dynamics. Characterize rural-urban interactions by means of a parameter that provides different scenarios and allows us to identify interactions capable of preventing SARS-CoV-2 transmission in rural food-producing communities. MATERIALS AND METHODS: The dynamics of SARS-CoV-2 infection was modeled in five case studies (Boyacá, Caquetá, Cundinamarca, Santander and Sucre) considering urban and rural areas and their interaction (connectivity) in the urban-rural interface. For this purpose, an epidemiological compartmental model considering a classification of individuals according to their economic activity and their epidemiological status was assessed. RESULTS: Preventive measures focused on the urban-rural interface impact the number of deaths in rural areas. Hence, it is possible to assume that the dynamics of the disease in rural areas depend on the constant interaction with infected individuals from urban areas, which occurs due to the food production dynamics in the urban-rural interface. CONCLUSIONS: Preventive measures should focus on places of high transmissibility and risk for rural communities, such as the urban-rural interface. This work highlights the importance of national heterogeneous preventive measures and the protection of rural communities from the social and economic impacts of SARS-CoV-2.

Introducción. Las comunidades rurales productoras de alimentos son fundamentales para el desarrollo de actividades económicas asociadas a la sostenibilidad y la seguridad alimentaria. Sin embargo, a pesar de la importancia de la ruralidad en Colombia, las estrategias de prevención continúan siendo implementadas homogéneamente, sin considerar la dinámica del SARS-CoV-2 en estas comunidades. Objetivo. Modelar la dinámica del SARS-CoV-2 en poblaciones rurales colombianas. Se quiso caracterizar la interacción rural-urbana mediante un parámetro que proporciona diferentes contextos y permite identificar una interacción rural-urbana capaz de prevenir la transmisión del SARS-CoV-2 en comunidades rurales productoras de alimentos. Materiales y métodos. La dinámica de transmisión del SARS-CoV-2 se modeló en cinco estudios de caso (Boyacá, Caquetá, Cundinamarca, Santander y Sucre) considerando áreas urbanas y rurales, así como su interacción (conectividad) en la interfaz urbanorural. Para ello, se empleó un modelo epidemiológico compartimental que considera una clasificación de los individuos según su actividad económica y su estado epidemiológico. Resultados. Las medidas preventivas enfocadas en la interfaz urbano-rural impactan el número de muertes en áreas rurales. Por lo tanto, es posible asumir que la dinámica de la enfermedad en las áreas rurales depende del contacto constante con los individuos infectados de las áreas urbanas, lo que ocurre debido a la dinámica de los sistemas de producción de alimentos en la interfaz urbano-rural. Conclusiones. Las medidas de prevención deben enfocarse en lugares con gran transmisibilidad y riesgo para las comunidades rurales, como la interfaz urbano-rural. En este trabajo se destaca la importancia de las medidas preventivas heterogéneas y la protección de las comunidades rurales contra los impactos sociales y económicos del SARS-CoV-2.

Preventive measures focused on the urban-rural interface protect rural food-producing communities from SARS-CoV-2 / Medidas preventivas centradas en la interfaz urbano-rural protegen a las comunidades rurales productoras de alimentos del SARS-CoV-2

Introduction: Rural food-producing communities are fundamental for the development of economic activities associated with sustainability and food security. However, despite the importance of rurality in Colombia, preventive strategies continue to be implemented homogeneously, without considering the dynamics of SARS-CoV-2 in rural food-producing communities. Objective: To model real areas in Colombia involving rural and urban populations that have intrinsic SARS-CoV-2 transmission dynamics. Characterize rural-urban interactions by means of a parameter that provides different scenarios and allows us to identify interactions capable of preventing SARS-CoV-2 transmission in rural food-producing communities. Materials and methods: The dynamics of SARS-CoV-2 infection was modeled in five case studies (Boyacá, Caquetá, Cundinamarca, Santander and Sucre) considering urban and rural areas and their interaction (connectivity) in the urban-rural interface. For this purpose, an epidemiological compartmental model considering a classification of individuals according to their economic activity and their epidemiological status was assessed. Results: Preventive measures focused on the urban-rural interface impact the number of deaths in rural areas. Hence, it is possible to assume that the dynamics of the disease in rural areas depend on the constant interaction with infected individuals from urban areas, which occurs due to the food production dynamics in the urban-rural interface. Conclusions: Preventive measures should focus on places of high transmissibility and risk for rural communities, such as the urban-rural interface. This work highlights the importance of national heterogeneous preventive measures and the protection of rural communities from the social and economic impacts of SARS-CoV-2.

Introducción. Las comunidades rurales productoras de alimentos son fundamentales para el desarrollo de actividades económicas asociadas a la sostenibilidad y la seguridad alimentaria. Sin embargo, a pesar de la importancia de la ruralidad en Colombia, las estrategias de prevención continúan siendo implementadas homogéneamente, sin considerar la dinámica del SARS-CoV-2 en estas comunidades. Objetivo. Modelar la dinámica del SARS-CoV-2 en poblaciones rurales colombianas. Se quiso caracterizar la interacción rural-urbana mediante un parámetro que proporciona diferentes contextos y permite identificar una interacción rural-urbana capaz de prevenir la transmisión del SARS-CoV-2 en comunidades rurales productoras de alimentos. Materiales y métodos. La dinámica de transmisión del SARS-CoV-2 se modeló en cinco estudios de caso (Boyacá, Caquetá, Cundinamarca, Santander y Sucre) considerando áreas urbanas y rurales, así como su interacción (conectividad) en la interfaz urbano-rural. Para ello, se empleó un modelo epidemiológico compartimental que considera una clasificación de los individuos según su actividad económica y su estado epidemiológico. Resultados. Las medidas preventivas enfocadas en la interfaz urbano-rural impactan el número de muertes en áreas rurales. Por lo tanto, es posible asumir que la dinámica de la enfermedad en las áreas rurales depende del contacto constante con los individuos infectados de las áreas urbanas, lo que ocurre debido a la dinámica de los sistemas de producción de alimentos en la interfaz urbano-rural. Conclusiones. Las medidas de prevención deben enfocarse en lugares con gran transmisibilidad y riesgo para las comunidades rurales, como la interfaz urbano-rural. En este trabajo se destaca la importancia de las medidas preventivas heterogéneas y la protección de las comunidades rurales contra los impactos sociales y económicos del SARS-CoV-2.

Bayesian spatial modeling of COVID-19 case-fatality rate inequalities.

The ongoing outbreak of COVID-19 challenges the health systems and epidemiological responses of all countries worldwide. Although preventive measures have been globally considered, the spatial heterogeneity of its effectiveness is evident, underscoring global health inequalities. Using Bayesian-based Markov chain Monte Carlo simulations, we identify the spatial association of socioeconomic factors and the risk for dying from COVID-19 in Colombia. We confirm that from March 16 to October 04, 2020, the COVID-19 case-fatality rate and the multidimensional poverty index have a heterogeneous spatial distribution. Spatial analysis reveals that the risk of dying from COVID-19 increases in regions with a higher proportion of poor people with dwelling (RR 1.74 95%CI = 1.54-9.75), educational (RR 1.69 95%CI = 1.36-5.94), childhood/youth (RR 1.35 95%CI = 1.08-4.03), and health (RR 1.16 95%CI = 1.06-2.04) deprivations. These findings evidence the vulnerability of most disadvantaged members of society to dying in a pandemic and assist the spatial planning of preventive strategies focused on vulnerable communities.

Continuity of Care and the Control of High Blood Pressure at Colombian Primary Care Services.

Continuity of care (COC) has been associated with lower mortality and hospitalizations and higher high blood pressure (HBP) control rates. This evidence mainly came from high income countries. We aimed to identify conditions associated with controlled HBP, particularly COC, in primary care services (PCSs) affiliated to two health insurances in Colombia, a low-median income country. A longitudinal observational study was carried out using clinical records of hypertensive adults >18 years with ≥4 clinic visits attending a contributive and a subsidized PCS in Cali (Colombia) between 2013 and 2014. Subsidized PCSs were for unemployment people and those at low socio-economic position and contributive for formal workers. COC was measured using the Bice and Boxerman index. Logistic regression models were performed to quantify the relation between COC and controlled HBP (blood pressure <140/90 mmHg). Between 2013 and 2014, among 8797 hypertensive people identified, 1358 were included: 935 (68.8%) and 423 (31.1%) from the contributive and subsidized PCSs, respectively. 856 (62.3%) were women and had a mean age of 67.7 years (SD 11.7). All people were on antihypertensive treatment. Over the study period, 522 (38.4%) people had controlled HBP, 410 (43.9%) in the contributive and 112 (26.5%) in subsidized PCSs. An increase in 1 unit of the COC index is associated with a 161% higher probability of having HBP controlled (OR, 2.61; 95% CI, 1.25-5.44). The odds of having controlled HBP increased as the number of visits rose; for example, people at the fourth visit had a 34% (OR, 1.34; 95% CI, 1.08-1.66) higher probability of reaching the target. Continuity of care was positively associated with controlled HBP. The strengthening of COC can improve the observed low HBP control rates and reduce health inequalities.

Evaluación prospectiva de las iniciativas en contra de las zoonosis de países de América Latina / Prospective evaluation of the initiatives against the zoonoses of Latin American countries

RESUMEN Objetivo Evaluar comparativamente las iniciativas a escala nacional en contra de las zoonosis en países de América Latina mediante la adaptación de la evaluación prospectiva. Materiales y Métodos Se analizó la vigilancia de los eventos de interés en salud pública y medidas ejecutadas y se adaptó el método de evaluación prospectiva de Haegeman con cinco criterios: evaluación, pertinencia, eficacia, oportunidad y sostenibilidad; estos fueron especificados y aplicados de manera cualitativa para medir el logro y el efecto de cada una de las iniciativas, determinando la eficacia de manera objetiva y acortando el tiempo de comparabilidad. Resultados Los principales objetivos de los programas de zoonosis son reducir morbimortalidad, fortalecer la vigilancia epidemiológica y capacidad nacional. Los eventos vigilados se clasificaron en virales, bacterianos, parasitarios y acciones contra la mordedura por animal ponzoñoso y tenencia responsable de mascotas. Las medidas para controlar las zoonosis incluyen cinco actividades: promoción, prevención, diagnóstico, vigilancia y control. De los cinco criterios valorados, se infirió que las iniciativas siguen las recomendaciones de los reglamentos internacionales. Incluyeron colaboración ¡ntersectorial y corresponsabilidad social y fueron consecuentes con los objetivos planteados y sostenibles en el tiempo. Conclusiones La evaluación prospectiva evidenció que la pertinencia de los programas se ve reflejada en cómo los objetivos se enfocan en las necesidades de la sociedad frente a los riesgos de contagio de enfermedades zoonóticas. Las acciones implementadas de manera colaborativa apuntan a generar un impacto positivo con la sociedad y el ecosistema.

ABSTRACT Objective To evaluate comparatively national-scale initiatives against zoonoses in LA countries through the adaptation of prospective evaluation. Materials and Methods The surveillance of events of interest in public health and the measures carried out were analyzed and the prospective evaluation method of Haegeman was adapted, with five criteria: evaluation, relevance, efficacy, timeliness and sustainability; they were specified and applied qualitatively to measure the achievement and effect of each of the initiatives; determining the effectiveness objectively and shortening the comparability time. Results The main objectives of zoonoses programs are to reduce morbidity and mortality, strengthen epidemiological surveillance and national capacity. Monitored events are classified into: viral, bacterial, parasitic and actions against poisonous animal bites and responsible pet ownership. Measures to control zoonoses include five activities: promotion, prevention, diagnosis, surveillance, and control. From the five criteria evaluated, it is inferred that the initiatives follow the recommendations of international regulations, include intersectoral collaboration and social co-responsibility, and are consistent with the objectives set and sustainable over time. Conclusions The prospective evaluation shows that the relevance of the programs is reflected in how the objectives are focused on the needs of society in the face of the risks of contagion of zoonotic diseases and the actions implemented collaboratively aim to generate a positive impact with society and the ecosystem.

Methicillin-susceptible staphylococcus aureus in community-acquired pneumonia: Risk factors and outcomes.

OBJECTIVES: We aimed to describe the prevalence, risk factors and outcomes of Methicillin-susceptible S. aureus (MSSA) community-acquired pneumonia (CAP) and compare them with those associated with CAP due to Streptococcus pneumoniae, the most frequent causative microorganism, in a large cohort of patients. METHODS: This was an observational study of prospectively collected data of consecutive adults with CAP and a definitive etiology enrolled between 2004 and 2018. Patients were divided into MSSA CAP and pneumococcal CAP groups for analysis. RESULTS: A microbial etiology was established in 1,548 (33%) cases: S. aureus caused 6% of microbiologically-confirmed CAP cases. In the latter, 52 were due to MSSA (60% of S. aureus CAP cases, and 3% of microbiologically-confirmed CAP cases) and 34 were due to MRSA (40% of S. aureus CAP cases, and 2% of microbiologically-confirmed CAP cases). S. pneumoniae was identified in 734 (47%) microbiologically-confirmed CAP cases. The presence of fever was independently associated with a lower risk of MSSA CAP (OR 0.53; 95% CI, 0.28-0.99). Patients with MSSA CAP had higher 30-day mortality than patients with pneumococcal CAP, both before and after adjustment for potential confounders (21% vs 7%, p = 0.002). MSSA was independently associated with 30-day mortality in the overall population. CONCLUSION: MSSA CAP was associated with worse outcomes than pneumococcal CAP in our cohort. MSSA was an independent factor of mortality.

Cannabinoid Effects on Experimental Colorectal Cancer Models Reduce Aberrant Crypt Foci (ACF) and Tumor Volume: A Systematic Review.

OBJECTIVE: Colorectal cancer represents a heavy burden for health systems worldwide, being the third most common cancer worldwide. Despite the breakthroughs in medicine, current chemotherapeutic options continue to have important side effects and may not be effective in preventing disease progression. Cannabinoids might be substances with possible therapeutic potential for cancer because they can attenuate the side effects of chemotherapy and have antiproliferative and antimetastatic effects. We aim to determine, through a systematic review of experimental studies performed on animal CRC models, if cannabinoids can reduce the formation of preneoplastic lesions (aberrant crypt foci), number, and volume of neoplastic lesions. MATERIALS AND METHODS: A systematic, qualitative review of the literature was conducted in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. PubMed, Embase, and Scopus databases were searched. We use the following Medical Subject Headings (MESH) terms in PubMed: "colorectal neoplasms," "colonic neoplasms," "colorectal cancer," "polyps," "rimonabant," "cannabidiol," "cannabinoids," "azoxymethane," "xenograft," and "mice." Only studies that met the eligibility criteria were included. RESULTS: Eight in vivo experimental studies were included in the analysis after the full-text evaluation. Seven studies were azoxymethane (AOM) colorectal cancer models, and four studies were xenograft models. Cannabidiol botanical substance (CBD BS) and rimonabant achieved high aberrant crypt foci (ACF) reduction (86% and 75.4%, respectively). Cannabigerol, O-1602, and URB-602 demonstrated a high capacity for tumor volume reduction. Induction of apoptosis, interaction with cell survival, growth pathways, and angiogenesis inhibition were the mechanisms extracted from the studies that explain cannabinoids' actions on CRC. CONCLUSIONS: Cannabinoids have incredible potential as antineoplastic agents as experimental models demonstrate that they can reduce tumor volume and ACF formation. It is crucial to conduct more experimental studies to understand the pharmacology of cannabinoids in CRC better.

SEROLOGIC SURVEY FOR SELECTED VIRAL AND BACTERIAL SWINE PATHOGENS IN COLOMBIAN COLLARED PECCARIES ( PECARI TAJACU) AND FERAL PIGS ( SUS SCROFA).

In South America, wild populations of peccaries coexist with domestic and feral pigs, with poorly understood consequences. We captured 58 collared peccaries ( Pecari tajacu) and 15 feral pigs ( Sus scrofa) in locations of Colombia where coexistence of these species is known. Blood samples were tested for antibodies against four viral agents, classical swine fever virus (CSFV), Aujeszky's disease virus (ADV), porcine circovirus (PCV-2), and vesicular stomatitis virus (New Jersey and Indiana subtypes) and two bacterial agents, Brucella spp. and six serovars of Leptospira interrogans. The prevalence of CSFV was 5% (3/58) in collared peccaries and 7% (1/15) in feral pigs. The prevalence of PCV-2 was 7% (1/15) in collared peccaries and 67% (2/3) in feral pigs. Vesicular stomatitis prevalence was 33% (8/24) in collared peccaries and 67% (4/6) in feral pigs. Leptospira prevalence was 78% (39/50) in collared peccary and 100% (8/8) in feral pigs; bratislava, grippotyphosa, icterohaemorrhagiae, and pomona were the most frequent serovars. Also, the only white-lipped peccary ( Tayassu pecari) sampled was positive for L. interrogans serovar bratislava and for vesicular stomatitis virus, New Jersey strain. No samples were positive for ADV or Brucella. The seroprevalence of antibodies against L. interrogans was similar to that observed in other studies. Icterohaemorrhagiae appears to be a common serovar among in situ and ex situ peccary populations. Positive antibodies against PVC-2 represent a novel report of exposure to this pathogen in Colombian peccaries. Our results indicate the possible transmission of various pathogens, important for pig farms, in the studied pig and peccaries.

Temporal dominance of sensations and preferences of Brazilians and Slovakians: A cross-cultural study of cachaças stored with woods from the Amazon rainforest.

BACKGROUND: Brazilians and Slovakians evaluated the temporal profile and the acceptability of cachaça stored with different woods (Cumarurana (CM), Jatobá (JT) and, Louro-vermelho (LV), which are found in the Amazon rainforest, and also oak), with the aim of performing a cross-cultural comparison of the dynamic profile of the attributes perceived in the cachaças and the sensorial acceptance of the samples. RESULTS: Important differences were observed between the temporal sensorial profiles generated by the two groups and their preferences. Brazilians preferred cachaças stored with the traditional wood, oak, followed by those stored with JT and CM. In contrast, Slovakians preferred cachaças stored with JT, followed by those stored with LV and oak. For both countries, the dominance of wood flavor and vanilla attributes at the end of the analysis time was positively associated with acceptance, while the dominance of off-flavors and the wood flavor attribute at the beginning of the analysis time was negatively associated with acceptance for Brazilians and Slovakians, respectively. CONCLUSION: Brazilians preferred cachaça stored with oak wood, and Slovakians preferred cachaça stored with JT wood, with acceptability being strongly associated with the dominance of wood flavor and vanilla attributes at the end of the evaluation time. © 2018 Society of Chemical Industry.

Papel de los roedores en la transmisión de Leptospira spp. en granjas porcinas / The role of rodents in the transmission of Leptospira spp. in swine farms

RESUMEN Diferentes especies de roedores son potenciales transmisores de múltiples agentes zoonóticos como Leptospira spp., espiroqueta causante de la Leptospirosis, que es una enfermedad infecciosa que tiene un impacto negativo en la porcicultura debido a que genera grandes pérdidas productivas, reproductivas y económicas. En las granjas porcinas, las especies de roedores más comunes son el ratón doméstico (Mus musculus), la rata parda (Rattus norvegicus) y la rata negra (Rattus rattus), que actúan como huéspedes de mantenimiento de diferentes serovares de Leptospira spp., contaminando con orina el ambiente, los alimentos y el agua, poniendo en riesgo la salud humana y animal. Por esta razón, el objetivo de este artículo es describir el papel de los roedores en la transmisión de Leptospira en granjas porcinas. Para esto, se realizó una búsqueda bibliográfica en diferentes bases de datos como Science Direct, Scopus, Redalyc, PubMed y SciELO. Los resultados de la revisión de literatura, demuestran que son escasos los estudios que reportan la importancia de los roedores en la transmisión de Leptospira en granjas porcinas. La presentación de la enfermedad depende en gran parte de la presencia, el contacto y el control de roedores en las granjas, aunque también se deben tener en cuenta factores ambientales, de supervivencia del agente y las medidas de higiene, entre otros.(AU)

ABSTRACT Different species of rodents are potential transmitters of multiple zoonotic agents such as Leptospira spp., a spirochete that causes leptospirosis. This is an infectious disease that has a negative impact on pig production because it generates large productive, reproductive and economic losses. In swine farms, the most common rodent species are house mice (Mus musculus), brown rats (Rattus norvegicus) and black rats (Rattus rattus), which act as maintenance hosts for different serovars of Leptospira, contaminating the environment, food and water through urine, and putting human and animal health at risk. For this reason, the objective of this article is to describe the role of rodents in the transmission of Leptospira in swine farms. For this purpose, a bibliographic search was carried out in different databases such as Science Direct, Scopus, Redalyc, PubMed and SciELO. The results of the literature review show that there are few studies that report the importance of rodents in the transmission of Leptospira in swine farms. The onset of the disease depends to a large extent on the presence, contact and control of rodents in farms, although environmental factors, agent survival and hygiene, among others, must also be considered.(AU)

[The role of rodents in the transmission of Leptospira spp. in swine farms]. / Papel de los roedores en la transmisión de Leptospira spp. en granjas porcinas.

Different species of rodents are potential transmitters of multiple zoonotic agents such as Leptospira spp., a spirochete that causes leptospirosis. This is an infectious disease that has a negative impact on pig production because it generates large productive, reproductive and economic losses. In swine farms, the most common rodent species are house mice (Mus musculus), brown rats (Rattus norvegicus) and black rats (Rattus rattus), which act as maintenance hosts for different serovars of Leptospira, contaminating the environment, food and water through urine, and putting human and animal health at risk. For this reason, the objective of this article is to describe the role of rodents in the transmission of Leptospira in swine farms. For this purpose, a bibliographic search was carried out in different databases such as Science Direct, Scopus, Redalyc, PubMed and SciELO. The results of the literature review show that there are few studies that report the importance of rodents in the transmission of Leptospira in swine farms. The onset of the disease depends to a large extent on the presence, contact and control of rodents in farms, although environmental factors, agent survival and hygiene, among others, must also be considered.

Diferentes especies de roedores son potenciales transmisores de múltiples agentes zoonóticos como Leptospira spp., espiroqueta causante de la Leptospirosis, que es una enfermedad infecciosa que tiene un impacto negativo en la porcicultura debido a que genera grandes pérdidas productivas, reproductivas y económicas. En las granjas porcinas, las especies de roedores más comunes son el ratón doméstico (Mus musculus), la rata parda (Rattus norvegicus) y la rata negra (Rattus rattus), que actúan como huéspedes de mantenimiento de diferentes serovares de Leptospira spp., contaminando con orina el ambiente, los alimentos y el agua, poniendo en riesgo la salud humana y animal. Por esta razón, el objetivo de este artículo es describir el papel de los roedores en la transmisión de Leptospira en granjas porcinas. Para esto, se realizó una búsqueda bibliográfica en diferentes bases de datos como Science Direct, Scopus, Redalyc, PubMed y SciELO. Los resultados de la revisión de literatura, demuestran que son escasos los estudios que reportan la importancia de los roedores en la transmisión de Leptospira en granjas porcinas. La presentación de la enfermedad depende en gran parte de la presencia, el contacto y el control de roedores en las granjas, aunque también se deben tener en cuenta factores ambientales, de supervivencia del agente y las medidas de higiene, entre otros.

Geographical distribution of the red howler monkey (Alouatta seniculus) and yellow fever in Colombia.

INTRODUCTION: Colombia is a country with an important diversity of non-human primates, of which the red howler monkey (Alouatta seniculus) stands out because of its distribution and the role it plays in the occurrence of yellow fever.  OBJECTIVE: To describe the geographic co-occurrence of Alouatta seniculus and the reported presence of yellow fever.  MATERIALS AND METHODS: We conducted a descriptive study. The reported presence of yellow fever in Colombia was obtained from the reports and bulletins issued by the Instituto Nacional de Salud, and the study by Segura, et al. (2013). The occurrence of A. seniculus was determined based on the data from the Global Biodiversity Information Facility and the Colombian Biodiversity Information System. A map of the occurrence was developed using the DIVA-GIS program, and the ecological niche model under current conditions was created with the Maxent program.  RESULTS: The departments with the highest occurrence of A. seniculus were Antioquia, Meta and Casanare; 69.5% of the departments with reported history of yellow fever had co-occurrence with A. seniculus. The ecological niche model showed that Antioquia, Bolívar, La Guajira, Magdalena, Meta, Santander, Norte de Santander and Vichada had geographical portions with a probability rate nearing to 0.9 (90%).  CONCLUSIONS: In 69.5% of the departments with a history of yellow fever there was co-occurrence with A. seniculus, which is relevant because non-human primates play a well-known role as natural reservoirs of the virus, and they might contribute to the occurrence of the yellow fever, which makes them very useful as sentinels.