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1.
Microb Ecol ; 76(1): 52-63, 2018 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-25796498

RESUMEN

Private residences in rural areas with water systems that are not adequately regulated, monitored, and updated could have drinking water that poses a health risk. To investigate water quality on the Crow Reservation in Montana, water and biofilm samples were collected from 57 public buildings and private residences served by either treated municipal or individual groundwater well systems. Bacteriological quality was assessed including detection of fecal coliform bacteria and heterotrophic plate count (HPC) as well as three potentially pathogenic bacterial genera, Mycobacterium, Legionella, and Helicobacter. All three target genera were detected in drinking water systems on the Crow Reservation. Species detected included the opportunistic and frank pathogens Mycobacterium avium, Mycobacterium gordonae, Mycobacterium flavescens, Legionella pneumophila, and Helicobacter pylori. Additionally, there was an association between HPC bacteria and the presence of Mycobacterium and Legionella but not the presence of Helicobacter. This research has shown that groundwater and municipal drinking water systems on the Crow Reservation can harbor potential bacterial pathogens.


Asunto(s)
Bacterias/aislamiento & purificación , Bacterias/patogenicidad , Biopelículas , Agua Potable/microbiología , Microbiología del Agua , Animales , Bacterias/clasificación , Bacterias/genética , Carga Bacteriana , Monitoreo del Ambiente , Heces/microbiología , Agua Subterránea/microbiología , Helicobacter/clasificación , Helicobacter/aislamiento & purificación , Procesos Heterotróficos , Humanos , Indígenas Norteamericanos , Legionella/clasificación , Legionella/aislamiento & purificación , Montana , Mycobacterium/clasificación , Mycobacterium/aislamiento & purificación , Calidad del Agua , Abastecimiento de Agua
2.
Int J Environ Health Res ; 24(4): 341-62, 2014 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-24044742

RESUMEN

The Little Bighorn River flows through the Crow Indian Reservation in Montana. In 2008, Escherichia coli concentrations as high as 7179 MPN/100 ml were detected in the river at the Crow Agency Water Treatment Plant intake site. During 2008, 2009, and 2012, 10 different serotypes of E. coli, including O157:H7, harboring both intimin and Shiga toxin genes were isolated from a popular swim site of the Little Bighorn River in Crow Agency. As part of a microbial source tracking study, E. coli strains were isolated from river samples as well as from manure collected from a large cattle feeding operation in the upper Little Bighorn River watershed; 23% of 167 isolates of E. coli obtained from the manure tested positive for the intimin gene. Among these manure isolates, 19 were identified as O156:H8, matching the serotype of an isolate collected from a river sampling site close to the cattle feeding area.


Asunto(s)
Adhesinas Bacterianas/genética , Reservorios de Enfermedades/microbiología , Proteínas de Escherichia coli/genética , Escherichia coli/aislamiento & purificación , Ríos/microbiología , Toxinas Shiga/genética , Contaminantes del Agua/análisis , Animales , Bovinos , Monitoreo del Ambiente , Escherichia coli/genética , Escherichia coli/patogenicidad , Estiércol/microbiología , Montana , Virulencia/genética
3.
CBE Life Sci Educ ; 22(2): ar25, 2023 06.
Artículo en Inglés | MEDLINE | ID: mdl-37058442

RESUMEN

In-person undergraduate research experiences (UREs) promote students' integration into careers in life science research. In 2020, the COVID-19 pandemic prompted institutions hosting summer URE programs to offer them remotely, raising questions about whether undergraduates who participate in remote research can experience scientific integration and whether they might perceive doing research less favorably (i.e., not beneficial or too costly). To address these questions, we examined indicators of scientific integration and perceptions of the benefits and costs of doing research among students who participated in remote life science URE programs in Summer 2020. We found that students experienced gains in scientific self-efficacy pre- to post-URE, similar to results reported for in-person UREs. We also found that students experienced gains in scientific identity, graduate and career intentions, and perceptions of the benefits of doing research only if they started their remote UREs at lower levels on these variables. Collectively, students did not change in their perceptions of the costs of doing research despite the challenges of working remotely. Yet students who started with low cost perceptions increased in these perceptions. These findings indicate that remote UREs can support students' self-efficacy development, but may otherwise be limited in their potential to promote scientific integration.


Asunto(s)
COVID-19 , Estudiantes , Humanos , Pandemias
4.
CBE Life Sci Educ ; 21(1): ar1, 2022 03.
Artículo en Inglés | MEDLINE | ID: mdl-34978923

RESUMEN

The COVID-19 pandemic shut down undergraduate research programs across the United States. A group of 23 colleges, universities, and research institutes hosted remote undergraduate research programs in the life sciences during Summer 2020. Given the unprecedented offering of remote programs, we carried out a study to describe and evaluate them. Using structured templates, we documented how programs were designed and implemented, including who participated. Through focus groups and surveys, we identified programmatic strengths and shortcomings as well as recommendations for improvements from students' perspectives. Strengths included the quality of mentorship, opportunities for learning and professional development, and a feeling of connection with a larger community. Weaknesses included limited cohort building, challenges with insufficient structure, and issues with technology. Although all programs had one or more activities related to diversity, equity, inclusion, and justice, these topics were largely absent from student reports even though programs coincided with a peak in national consciousness about racial inequities and structural racism. Our results provide evidence for designing remote Research Experiences for Undergraduates (REUs) that are experienced favorably by students. Our results also indicate that remote REUs are sufficiently positive to further investigate their affordances and constraints, including the potential to scale up offerings, with minimal concern about disenfranchising students.


Asunto(s)
COVID-19 , Humanos , Pandemias , SARS-CoV-2 , Estudiantes , Racismo Sistemático , Estados Unidos
5.
Fam Community Health ; 34(3): 246-55, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21633218

RESUMEN

This case study of community and university research partnerships utilizes previously developed principles for conducting research in the context of Native American communities to consider how partners understand and apply the principles in developing community-based participatory research partnerships to reduce health disparities. The 7 partnership projects are coordinated through a National Institutes of Health-funded center and involve a variety of tribal members, including both health care professionals and lay persons and native and nonnative university researchers. This article provides detailed examples of how these principles are applied to the projects and discusses the overarching and interrelated emergent themes of sharing power and building trust.


Asunto(s)
Participación de la Comunidad , Investigación Participativa Basada en la Comunidad/métodos , Disparidades en el Estado de Salud , Indígenas Norteamericanos , Relaciones Comunidad-Institución , Conducta Cooperativa , Investigación sobre Servicios de Salud , Humanos , Encuestas y Cuestionarios , Confianza , Estados Unidos , Universidades
6.
Artículo en Inglés | MEDLINE | ID: mdl-33445579

RESUMEN

Affordable access to safe drinking water is essential to community health, yet there is limited understanding of water insecurity among Native Americans. Therefore, the focus of this paper is to describe Apsáalooke (Crow Indian) tribal members' experiences with water insecurity. For Apsáalooke people, local rivers and springs are still vitally important for traditional cultural activities. We interviewed 30 Native American adults living on the Crow Reservation in Southeastern Montana. Participants answered six open-ended interview questions about their water access, costs of obtaining water and changes in their domestic and traditional water uses. Participants emphasized how the use of water has changed over time and described the complex challenges associated with addressing water insecurity in their community, including the importance of considering the spiritual and cultural impacts of water insecurity on health. Water insecurity is a growing global problem and more attention and efforts are needed to find appropriate and affordable solutions.


Asunto(s)
Agua Potable , Indígenas Norteamericanos , Adulto , Humanos , Montana , Inseguridad Hídrica , Abastecimiento de Agua
7.
Fam Community Health ; 33(3): 166-74, 2010.
Artículo en Inglés | MEDLINE | ID: mdl-20531097

RESUMEN

Water has always been held in high respect by the Apsaálooke (Crow) people of Montana. Tribal members questioned the health of the rivers and well water because of visible water quality deterioration and potential connections to illnesses in the community. Community members initiated collaboration among local organizations, the tribe, and academic partners, resulting in genuine community-based participatory research. The article shares what we have learned as tribal members and researchers about working together to examine surface and groundwater contaminants, assess routes of exposure, and use our data to bring about improved health of our people and our waters.


Asunto(s)
Investigación Participativa Basada en la Comunidad , Salud Ambiental , Indígenas Norteamericanos/psicología , Abastecimiento de Agua/normas , Adulto , Humanos , Montana , Investigadores/psicología
8.
Artículo en Inglés | MEDLINE | ID: mdl-30934749

RESUMEN

The Little Bighorn River is the primary source of water for water treatment plants serving the local Crow Agency population, and has special significance in the spiritual and ceremonial life of the Crow tribe. Unfortunately, the watershed suffers from impaired water quality, with high counts of fecal coliform bacteria routinely measured during run-off events. A metagenomic analysis was carried out to identify potential pathogens in the river water. The Oxford Nanopore MinION platform was used to sequence DNA in near real time to identify both uncultured and a coliform-enriched culture of microbes collected from a popular summer swimming area of the Little Bighorn River. Sequences were analyzed using CosmosID bioinformatics and, in agreement with previous studies, enterohemorrhagic and enteropathogenic Escherichia coli and other E. coli pathotypes were identified. Noteworthy was detection and identification of enteroaggregative E. coli O104:H4 and Vibrio cholerae serotype O1 El Tor, however, cholera toxin genes were not identified. Other pathogenic microbes, as well as virulence genes and antimicrobial resistance markers, were also identified and characterized by metagenomic analyses. It is concluded that metagenomics provides a useful and potentially routine tool for identifying in an in-depth manner microbial contamination of waterways and, thereby, protecting public health.


Asunto(s)
Enterobacteriaceae/genética , Metagenómica/métodos , Ríos/microbiología , Escherichia coli/genética , Humanos , Montana/epidemiología , Serogrupo , Virulencia , Calidad del Agua
9.
Artículo en Inglés | MEDLINE | ID: mdl-29561815

RESUMEN

Disparities in access to safe public drinking water are increasingly being recognized as contributing to health disparities and environmental injustice for vulnerable communities in the United States. As the Co-Directors of the Apsaálooke Water and Wastewater Authority (AWWWA) for the Crow Tribe, with our academic partners, we present here the multiple and complex challenges we have addressed in improving and maintaining tribal water and wastewater infrastructure, including the identification of diverse funding sources for infrastructure construction, the need for many kinds of specialized expertise and long-term stability of project personnel, ratepayer difficulty in paying for services, an ongoing legacy of inadequate infrastructure planning, and lack of water quality research capacity. As a tribal entity, the AWWWA faces additional challenges, including the complex jurisdictional issues affecting all phases of our work, lack of authority to create water districts, and additional legal and regulatory gaps-especially with regards to environmental protection. Despite these obstacles, the AWWWA and Crow Tribe have successfully upgraded much of the local water and wastewater infrastructure. We find that ensuring safe public drinking water for tribal and other disadvantaged U.S. communities will require comprehensive, community-engaged approaches across a broad range of stakeholders to successfully address these complex legal, regulatory, policy, community capacity, and financial challenges.


Asunto(s)
Agua Potable/normas , Indígenas Norteamericanos , Eliminación de Residuos Líquidos/métodos , Abastecimiento de Agua/normas , Animales , Salud Ambiental , Humanos , Montana , Estados Unidos
10.
Artículo en Inglés | MEDLINE | ID: mdl-29304032

RESUMEN

An estimated 11 million people in the US have home wells with unsafe levels of hazardous metals and nitrate. The national scope of the health risk from consuming this water has not been assessed as home wells are largely unregulated and data on well water treatment and consumption are lacking. Here, we assessed health risks from consumption of contaminated well water on the Crow Reservation by conducting a community-engaged, cumulative risk assessment. Well water testing, surveys and interviews were used to collect data on contaminant concentrations, water treatment methods, well water consumption, and well and septic system protection and maintenance practices. Additive Hazard Index calculations show that the water in more than 39% of wells is unsafe due to uranium, manganese, nitrate, zinc and/or arsenic. Most families' financial resources are limited, and 95% of participants do not employ water treatment technologies. Despite widespread high total dissolved solids, poor taste and odor, 80% of families consume their well water. Lack of environmental health literacy about well water safety, pre-existing health conditions and limited environmental enforcement also contribute to vulnerability. Ensuring access to safe drinking water and providing accompanying education are urgent public health priorities for Crow and other rural US families with low environmental health literacy and limited financial resources.


Asunto(s)
Agua Potable/análisis , Monitoreo del Ambiente , Compuestos Inorgánicos/análisis , Salud Pública , Contaminantes Químicos del Agua/análisis , Pozos de Agua , Arsénico/análisis , Monitoreo del Ambiente/métodos , Humanos , Montana , Nitratos/análisis , Medición de Riesgo , Población Rural , Factores Socioeconómicos , Uranio/análisis , Abastecimiento de Agua
11.
Int J Environ Res Public Health ; 12(4): 4076-100, 2015 Apr 13.
Artículo en Inglés | MEDLINE | ID: mdl-25872019

RESUMEN

Racial and ethnic minority communities, including American Indian and Alaska Natives, have been disproportionately impacted by environmental pollution and contamination. This includes siting and location of point sources of pollution, legacies of contamination of drinking and recreational water, and mining, military and agricultural impacts. As a result, both quantity and quality of culturally important subsistence resources are diminished, contributing to poor nutrition and obesity, and overall reductions in quality of life and life expectancy. Climate change is adding to these impacts on Native American communities, variably causing drought, increased flooding and forced relocation affecting tribal water resources, traditional foods, forests and forest resources, and tribal health. This article will highlight several extramural research projects supported by the United States Environmental Protection Agency (USEPA) Science to Achieve Results (STAR) tribal environmental research grants as a mechanism to address the environmental health inequities and disparities faced by tribal communities. The tribal research portfolio has focused on addressing tribal environmental health risks through community based participatory research. Specifically, the STAR research program was developed under the premise that tribal populations may be at an increased risk for environmentally-induced diseases as a result of unique subsistence and traditional practices of the tribes and Alaska Native villages, community activities, occupations and customs, and/or environmental releases that significantly and disproportionately impact tribal lands. Through a series of case studies, this article will demonstrate how grantees-tribal community leaders and members and academic collaborators-have been addressing these complex environmental concerns by developing capacity, expertise and tools through community-engaged research.


Asunto(s)
Investigación Participativa Basada en la Comunidad , Salud Ambiental , Disparidades en el Estado de Salud , Indígenas Norteamericanos , Alaska , Cambio Climático , Femenino , Humanos , Masculino , Grupos Minoritarios , Calidad de Vida , Estados Unidos , United States Environmental Protection Agency
12.
Clim Change ; 120(3)2013 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-24265512

RESUMEN

American Indians have unique vulnerabilities to the impacts of climate change because of the links among ecosystems, cultural practices, and public health, but also as a result of limited resources available to address infrastructure needs. On the Crow Reservation in south-central Montana, a Northern Plains American Indian Reservation, there are community concerns about the consequences of climate change impacts for community health and local ecosystems. Observations made by Tribal Elders about decreasing annual snowfall and milder winter temperatures over the 20th century initiated an investigation of local climate and hydrologic data by the Tribal College. The resulting analysis of meteorological data confirmed the decline in annual snowfall and an increase in frost free days. In addition, the data show a shift in precipitation from winter to early spring and a significant increase in days exceeding 90° F (32° C). Streamflow data show a long-term trend of declining discharge. Elders noted that the changes are affecting fish distribution within local streams and plant species which provide subsistence foods. Concerns about warmer summer temperatures also include heat exposure during outdoor ceremonies that involve days of fasting without food or water. Additional community concerns about the effects of climate change include increasing flood frequency and fire severity, as well as declining water quality. The authors call for local research to understand and document current effects and project future impacts as a basis for planning adaptive strategies.

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