Occupational Health and Industrial Hygiene Commons^™

Perceived Ethnic Discrimination And Depressive Symptoms Among Biethnic Adolescents In South Korea., Gum Ryeong Park, Son Inseo, Seung-Sup Kim

Environmental and Occupational Health Faculty Publications

Objectives

Methods

Results

Differences In The Carcinogenic Evaluation Of Glyphosate Between The International Agency For Research On Cancer (Iarc) And The European Food Safety Authority (Efsa)., C. J. Portier, B. Armstrong, B. Baguley, X. Baur, I. Belyaev, Melissa J. Perry, +Several Additional Authors

Environmental and Occupational Health Faculty Publications

No abstract provided.

Detection Of Zoonotic Enteropathogens In Children And Domestic Animals In A Semirural Community In Ecuador., Karla Vasco, Jay P Graham, Gabriel Trueba

Environmental and Occupational Health Faculty Publications

UNLABELLED: Animals are important reservoirs of zoonotic enteropathogens, and transmission to humans occurs more frequently in low- and middle-income countries (LMICs), where small-scale livestock production is common. In this study, we investigated the presence of zoonotic enteropathogens in stool samples from 64 asymptomatic children and 203 domestic animals of 62 households in a semirural community in Ecuador between June and August 2014. Multilocus sequence typing (MLST) was used to assess zoonotic transmission of Campylobacter jejuni and atypical enteropathogenic Escherichia coli (aEPEC), which were the most prevalent bacterial pathogens in children and domestic animals (30.7% and 10.5%, respectively). Four sequence types …

Effects Of Neonicotinoid Pesticide Exposure On Human Health: A Systematic Review., Andria M Cimino, Abee L Boyles, Kristina A Thayer, Melissa J. Perry

Environmental and Occupational Health Faculty Publications

BACKGROUND: Numerous studies have identified detectable levels of neonicotinoids (neonics) in the environment, adverse effects of neonics in many species including mammals, and pathways through which human exposure to neonics could occur, yet little is known about the human health effects of neonic exposure.

OBJECTIVE: This systematic review sought to identify human population studies on the health effects of neonics.

METHODS: Studies published in English between 2005 and 2015 were searched using PubMed, Scopus, and Web of Science databases. No restrictions were placed on the type of health outcome assessed. Risk of bias was assessed using guidance developed by the …

Sperm Aneuploidy In Faroese Men With Lifetime Exposure To Dichlorodiphenyldichloroethylene (Dde) And Polychlorinated Biphenyl (Pcb) Pollutants., Melissa J Perry, Heather A Young, Philippe Grandjean, Jónrit Halling, Maria S Petersen, Sheena E Martenies, Parisa Karimi, Pál Weihe

Environmental and Occupational Health Faculty Publications

Background: Although it is known that sperm aneuploidy contributes to early pregnancy losses and congenital abnormalities, the causes are unknown and environmental contaminants are suspected.

Objectives: Our goal was to evaluate associations between lifetime exposure to organochlorines, specifically dichlorodiphenyldicholorethylene (p,p´-DDE) and polychlorinated biphenyls (PCBs), and sperm aneuploidy in men from the general population of the Faroe Islands, a population with a known history of organochlorine exposures.

Methods: Serum and semen samples from men (n = 90) 22–44 years old who participated in Faroe Islands health studies were analyzed for p,p´-DDE and PCBs 118, 138, 153, and …

Separate F-Type Plasmids Have Shaped The Evolution Of The H30 Subclone Of Escherichia Coli Sequence Type 131., Timothy J Johnson, Jessica L Danzeisen, Bonnie Youmans, Kyle Case, Katharine Llop, Jeannette Munoz-Aguayo, Cristian Flores-Figueroa, Maliha Aziz, Nicole Stoesser, Evgeni Sokurenko, Lance B. Price, James R Johnson

Environmental and Occupational Health Faculty Publications

The extraintestinal pathogenic Escherichia coli (ExPEC) H30 subclone of sequence type 131 (ST131-H30) has emerged abruptly as a dominant lineage of ExPEC responsible for human disease. The ST131-H30 lineage has been well described phylogenetically, yet its plasmid complement is not fully understood. Here, single-molecule, real-time sequencing was used to generate the complete plasmid sequences of ST131-H30 isolates and those belonging to other ST131 clades. Comparative analyses revealed separate F-type plasmids that have shaped the evolution of the main fluoroquinolone-resistant ST131-H30 clades. Specifically, an F1:A2:B20 plasmid is strongly associated with the H …

Household Clustering Of Escherichia Coli Sequence Type 131 Clinical And Fecal Isolates According To Whole Genome Sequence Analysis, James R. Johnson, Gregg Davis, Connie Clabots, Brian D. Johnston, Stephen Porter, Lance B. Price, +10 Additional Authors

Environmental and Occupational Health Faculty Publications

Background. Within-household sharing of strains from the resistance-associated H30R1 and H30Rx subclones of Escherichia coli sequence type 131 (ST131) has been inferred based on conventional typing data, but has been assessed minimally using whole genome sequence (WGS) analysis.

Methods. Thirty-three clinical and fecal isolates of ST131-H30R1 and ST131-H30Rx, from 20 humans and pets in six households, underwent WGS analysis for comparison with 52 published ST131 genomes. Phylogenetic relationships were inferred using a bootstrapped maximum likelihood tree based on core genome sequence polymorphisms. Accessory traits were compared between phylogenetically similar isolates.

Results. In the WGS-based …

The Emergence Of Systematic Review In Toxicology, Martin L. Stephens, Kellyn Betts, Nancy Beck, Vincent Cogliano, Kay Dickersin, George Gray, +8 Additional Authors

Environmental and Occupational Health Faculty Publications

The Evidence-based Toxicology Collaboration hosted a workshop on “The Emergence of Systematic Review and Related Evidence-based Approaches in Toxicology,” on November 21, 2014 in Baltimore, Maryland. The workshop featured speakers from agencies and organizations applying systematic review approaches to questions in toxicology, speakers with experience in conducting systematic reviews in medicine and healthcare, and stakeholders in industry, government, academia, and non-governmental organizations. Based on the workshop presentations and discussion, here we address the state of systematic review methods in toxicology, historical antecedents in both medicine and toxicology, challenges to the translation of systematic review from medicine to toxicology, and thoughts …

Phylogenetic Organization Of Bacterial Activity., Ember M Morrissey, Rebecca L Mau, Egbert Schwartz, J Gregory Caporaso, Paul Dijkstra, Natasja Van Gestel, Benjamin J Koch, Cindy M. Liu, Michaela Hayer, Theresa A Mchugh, Jane C Marks, Lance B. Price, Bruce A Hungate

Environmental and Occupational Health Faculty Publications

Phylogeny is an ecologically meaningful way to classify plants and animals, as closely related taxa frequently have similar ecological characteristics, functional traits and effects on ecosystem processes. For bacteria, however, phylogeny has been argued to be an unreliable indicator of an organism's ecology owing to evolutionary processes more common to microbes such as gene loss and lateral gene transfer, as well as convergent evolution. Here we use advanced stable isotope probing with (13)C and (18)O to show that evolutionary history has ecological significance for in situ bacterial activity. Phylogenetic organization in the activity of bacteria sets the stage for characterizing …

Cord Blood Methylmercury And Fetal Growth Outcomes In Baltimore Newborns: Potential Confounding And Effect Modification By Omega-3 Fatty Acids, Selenium, And Sex, Ellen M Wells, Julie B Herbstman, Yu Hong Lin, Jeffery Jarrett, Carl P Verdon, Cynthia Ward, Kathleen L Caldwell, Joseph R Hibbeln, Frank R Witter, Rolf U Halden, Lynn R. Goldman

Environmental and Occupational Health Faculty Publications

BACKGROUND: Methylmercury (MeHg) may affect fetal growth; however, prior research often lacked assessment of mercury speciation, confounders, and interactions.

OBJECTIVE: Our objective was to assess the relationship between MeHg and fetal growth as well as the potential for confounding or interaction of this relationship from speciated mercury, fatty acids, selenium, and sex.

METHODS: This cross-sectional study includes 271 singletons born in Baltimore, Maryland, 2004-2005. Umbilical cord blood was analyzed for speciated mercury, serum omega-3 highly unsaturated fatty acids (n-3 HUFAs), and selenium. Multivariable linear regression models controlled for gestational age, birth weight, maternal age, parity, prepregnancy body mass index, smoking, …

Pregnant Women’S Health Consequences Following Exposure To Pbdes, Alison Chiaramonte, Ami R. Zota

GW Research Days 2016 - 2020

PBDEs (Polybrominated diphenyl ethers) are chemicals introduced by industry in the 1970s to serve as flame-retardants on common consumer products like electronics, plastics, and foam in furniture. They are also suspected to disrupt thyroid activity during pregnancy, which is a time of increased demand on the thyroid gland. Maternal thyroid fluctuations and disease as a result of exposure to PBDEs are therefore a concern. This systematic review aimed to capture all of the relevant peer-reviewed literature investigating the association between PBDEs and maternal thyroid activity. Use of the PRISMA checklist (Preferred Reporting Items for Systematic Reviews and Meta-Analyses), a best …

Staphylococcus Aureus Nasal Carriage Among Beefpacking Workers In A Midwestern United States Slaughterhouse, Jessica Leibler, Jeanne A. Jordan, Kirsten Brownstein, Lina Lander, Lance B. Price, Melissa J. Perry

Environmental and Occupational Health Faculty Publications

Occupational contact with livestock is an established risk factor for exposure to livestock-associated methicillin-resistant Staphylococcus aureus (MRSA), particularly among industrial swine workers. While S. aureus is known to infect cattle, livestock-associated S. aureuscarriage among workers in the beef production chain has received limited attention. Beefpacking workers, who slaughter, butcher and process cattle, have intensified exposure to potentially infectious animal materials and may be at risk of livestock-associated S. aureusexposure. We conducted a cross-sectional study of beefpacking workers (n = 137) at an industrial slaughterhouse in the Midwestern United States to evaluate prevalence and characteristics of …

Recent Fast Food Consumption And Bisphenol A And Phthalates Exposures Among The U.S. Population In Nhanes, 2003-2010, Ami R. Zota, Cassandra Phillips, Susanna D. Mitro

Environmental and Occupational Health Faculty Publications

Background: Phthalates and bisphenol A (BPA) are widely used industrial chemicals that may adversely impact human health. Human exposure is ubiquitous and can occur through diet, including consumption of processed or packaged food.

Objective: To examine associations between recent fast food intake and BPA and urinary metabolites of di(2-ethylhexyl) phthalate (ΣDEHPm) and diisononyl phthalate (DiNPm) among the US population.

Methods: We combined data on 8877 participants from the National Health and Nutrition Examination Survey (NHANES 2003-2010). Using 24-hour dietary recall data, we quantified: 1) fast food intake (percent of total energy intake (TEI) from fast food); 2) fast food-derived fat …

Complete Genome Sequence Of A Ctx-M-15-Producing Escherichia Coli Strain From The H30rx Subclone Of Sequence Type 131 From A Patient With Recurrent Urinary Tract Infections, Closely Related To A Lethal Urosepsis Isolate From The Patient's Sister., Timothy J. Johnson, Maliha Aziz, Cindy M. Liu, Evgeni Sokurenko, Dagmara I. Kisiela, Sandip Paul, Paal S. Andersen, James R. Johnson, Lance B. Price

Environmental and Occupational Health Faculty Publications

We report here the complete genome sequence, including five plasmid sequences, of Escherichia coli sequence type 131 (ST131) strain JJ1887. The strain was isolated in 2007 in the United States from a patient with recurrent cystitis, whose caregiver sister died from urosepsis caused by a nearly identical strain.

Don't Ask For Fair Treatment? A Gender Analysis Of Ethnic Discrimination, Response To Discrimination, And Self-Rated Health Among Marriage Migrants In South Korea., Yugyun Kim, Inseo Son, Dainn Wie, Carles Muntaner, Hyunwoo Kim, Seung-Sup Kim

Environmental and Occupational Health Faculty Publications

BACKGROUND: Ethnic discrimination is increasingly common nowadays in South Korea with the influx of migrants. Despite the growing body of evidences suggests that ethnic discrimination negatively impacts health, only few researches have been conducted on the association between ethnic discrimination and health outcomes among marriage migrants in Korea. This study sought to examine how ethnic discrimination and response to the discrimination are related to self-rated health and whether the association differs by victim's gender.

METHODS: We conducted two-step analysis using cross-sectional dataset from the 'National Survey of Multicultural Families 2012'. First, we examined the association between perceived ethnic discrimination and …

Direct Measurement Of Bisphenol A (Bpa), Bpa Glucuronide And Bpa Sulfate In A Diverse And Low-Income Population Of Pregnant Women Reveals High Exposure, With Potential Implications For Previous Exposure Estimates: A Cross-Sectional Study., Roy R. Gerona, Janet Pan, Ami R. Zota, Jackie M. Schwartz, Matthew Friesen, Julia A. Taylor, Patricia A. Hunt, Tracey J. Woodruff

Environmental and Occupational Health Faculty Publications

BACKGROUND: Bisphenol A (BPA) is a ubiquitous, endocrine-disrupting environmental contaminant that increases risk of some adverse developmental effects. Thus, it is important to characterize BPA levels, metabolic fate and sources of exposure in pregnant women.

METHODS: We used an improved liquid chromatography-tandem mass spectrometry (LC-MS/MS) analytic method to directly and simultaneously measure unconjugated BPA (uBPA), BPA glucuronide and BPA sulfate in the urine of a population of ethnically and racially diverse, and predominately low-income pregnant women (n = 112) in their second trimester. We also administered a questionnaire on dietary and non-dietary sources of exposure to BPA.

RESULTS …

An Analysis Of Water Collection Labor Among Women And Children In 24 Sub-Saharan African Countries., Jay Graham, Mitsuaki Hirai, Seung-Sup Kim

Environmental and Occupational Health Faculty Publications

BACKGROUND: It is estimated that more than two-thirds of the population in sub-Saharan Africa (SSA) must leave their home to collect water, putting them at risk for a variety of negative health outcomes. There is little research, however, quantifying who is most affected by long water collection times.

OBJECTIVES: This study aims to a) describe gender differences in water collection labor among both adults and children (< 15 years of age) in the households (HHs) that report spending more than 30 minutes collecting water, disaggregated by urban and rural residence; and b) estimate the absolute number of adults and children affected by water collection times greater than 30 minutes in 24 SSA countries.

METHODS: We analyzed data from the Demographic Health Survey (DHS) and the Multiple Indicator Cluster Survey (MICS) (2005-2012) to describe water collection labor in 24 SSA countries.

RESULTS: Among households spending more than …

Leisure-Time Physical Activity, Falls, And Fall Injuries In Middle-Aged Adults., Alberto J. Caban-Martinez, Theodore K. Courtney, Wen-Ruey Chang, David A. Lombardi, Melissa J. Perry, Jeffrey N. Katz, David C. Christiani, Santosh K. Verma

Environmental and Occupational Health Faculty Publications

Introduction

Although exercise and strength training have been shown to be protective against falls in older adults (aged 65 years and older), evidence for the role of leisure-time physical activity (LTPA) in the prevention of falls and resulting injuries in middle-aged adults (aged 45–64 years) is lacking. In the present study, we investigate the association between self-reported engagement in LTPA and the frequency of falls and fall-related injuries among middle-aged and older adults, while controlling for key sociodemographic and health characteristics.

Methods

Nationally representative data from the 2010 U.S. Behavioral Risk Factor Surveillance Survey were analyzed in April 2014 to …

Cross-Sectional Associations Between Exposure To Persistent Organic Pollutants And Leukocyte Telomere Length Among U.S. Adults In Nhanes, 2001-2002., Susanna D. Mitro, Linda S. Birnbaum, Belinda L. Needham, Ami R. Zota

Environmental and Occupational Health Faculty Publications

Background: Exposure to persistent organic pollutants (POPs) such as dioxins, furans, and polychlorinated biphenyls (PCBs) may influence leukocyte telomere length (LTL), a biomarker associated with chronic disease. In vitro research suggests dioxins may bind to the aryl hydrocarbon receptor (AhR) and induce telomerase activity, which elongates LTL. However, few epidemiologic studies have investigated associations between POPs and LTL.

Objectives: We examined the association between 18 PCBs, 7 dioxins, and 9 furans and LTL among 1,330 U.S. adults from NHANES 2001-2002. Methods: We created three summed POP metrics based on toxic equivalency factor (TEF), a potency measure including affinity for the …

Optimal Exposure Biomarkers For Nonpersistent Chemicals In Environmental Epidemiology, Antonia M. Calafat, Matthew P. Longnecker, Holger M. Koch, Shanna H. Swan, Russ Hauser, Lynn R. Goldman, +7 Additional Authors

Environmental and Occupational Health Faculty Publications

We discuss considerations that are essential when evaluating exposure to nonpersistent, semivolatile environmental chemicals such as phthalates and phenols (e.g., bisphenol A). A biomarker should be chosen to best represent usual personal exposures and not recent, adventitious, or extraneous exposures. Biomarkers should be selected to minimize contamination arising from collection, sampling, or analysis procedures. Pharmacokinetics should be considered; for example, nonpersistent, semivolatile chemicals are metabolized quickly, and urine is the compartment with the highest concentrations of metabolites. Because these chemicals are nonpersistent, knowledge of intraindividual reliability over the biologic window of interest is also required. In recent years researchers have …

Intermingled Klebsiella Pneumoniae Populations Between Retail Meats And Human Urinary Tract Infections, Gregg S. Davis, Kara Waits, Lora Nordstrom, Brett Weaver, Maliha Aziz, Lance B. Price, +8 Additional Authors

Environmental and Occupational Health Faculty Publications

Background. Klebsiella pneumoniae is a common colonizer of the gastrointestinal tract of humans, companion animals, and livestock. To better understand potential contributions of foodborne K. pneumoniae to human clinical infections, we compared K. pneumoniae isolates from retail meat products and human clinical specimens to assess their similarity based on antibiotic resistance, genetic relatedness, and virulence.

Methods. Klebsiella pneumoniae was isolated from retail meats from Flagstaff grocery stores in 2012 and from urine and blood specimens from Flagstaff Medical Center in 2011–2012. Isolates underwent antibiotic susceptibility testing and whole-genome sequencing. Genetic relatedness of the isolates was assessed using multilocus sequence typing …

Using Whole Genome Analysis To Examine Recombination Across Diverse Sequence Types Of Staphylococcus Aureus, Elizabeth M. Driebe, Jason W. Sahl, Chandler Roe, Jolene R. Bowers, James M. Schupp, Lance B. Price, +11 Additional Authors

Environmental and Occupational Health Faculty Publications

Staphylococcus aureus is an important clinical pathogen worldwide and understanding this organism's phylogeny and, in particular, the role of recombination, is important both to understand the overall spread of virulent lineages and to characterize outbreaks. To further elucidate the phylogeny of S. aureus, 35 diverse strains were sequenced using whole genome sequencing. In addition, 29 publicly available whole genome sequences were included to create a single nucleotide polymorphism (SNP)-based phylogenetic tree encompassing 11 distinct lineages. All strains of a particular sequence type fell into the same clade with clear groupings of the major clonal complexes of CC8, CC5, …

Vaginal Douching And Racial/Ethnic Disparities In Phthalates Exposures Among Reproductive-Aged Women: National Health And Nutrition Examination Survey 2001–2004, Francesca Branch, Tracey J. Woodruff, Susanna D. Mitro, Ami R. Zota

Environmental and Occupational Health Faculty Publications

Background

Diethyl phthalate (DEP) and di-n-butyl phthalate (DnBP) are industrial chemicals found in consumer products that may increase risk of adverse health effects. Although use of personal care/beauty products is known to contribute to phthalate exposure, no prior study has examined feminine hygiene products as a potential phthalate source. In this study, we evaluate whether vaginal douching and other feminine hygiene products increase exposure to phthalates among US reproductive-aged women.

Methods

We conducted a cross-sectional study on 739 women (aged 20–49) from the National Health and Nutrition Examination Survey 2001–2004 to examine the association between self-reported use of …

Iarc Monographs: 40 Years Of Evaluating Carcinogenic Hazards To Humans, Neil Pearce, Aaron Blair, Paolo Vineis, Wolfgang Ahrens, Aage Andersen, Melissa J. Perry, +Several Additional Authors

Environmental and Occupational Health Faculty Publications

Background: Recently, the International Agency for Research on Cancer (IARC) Programme for the Evaluation of Carcinogenic Risks to Humans has been criticized for several of its evaluations, and also for the approach used to perform these evaluations. Some critics have claimed that failures of IARC Working Groups to recognize study weaknesses and biases of Working Group members have led to inappropriate classification of a number of agents as carcinogenic to humans.

Objectives: The authors of this Commentary are scientists from various disciplines relevant to the identification and hazard evaluation of human carcinogens. We examined criticisms of the IARC classification process …

Penile Microbiota And Female Partner Bacterial Vaginosis In Rakai, Uganda, Cindy M. Liu, Bruce A. Hungate, Aaron A.R. Tobian, Jacques Ravel, Lance B. Price, +8 Additional Authors

Environmental and Occupational Health Faculty Publications

Bacterial vaginosis (BV) is a common vaginal bacterial imbalance associated with risk for HIV and poor gynecologic and obstetric outcomes. Male circumcision reduces BV-associated bacteria on the penis and decreases BV in female partners, but the link between penile microbiota and female partner BV is not well understood. We tested the hypothesis that having a female partner with BV increases BV-associated bacteria in uncircumcised men. We characterized penile microbiota composition and density (i.e., the quantity of bacteria per swab) by broad-coverage 16S rRNA gene-based sequencing and quantitative PCR (qPCR) in 165 uncircumcised men from Rakai, Uganda. Associations between penile community …

Occupational Health Risk Factors For Schistosomiasis: Systematic Review And Analysis, Sarah Grace Sawyer, Amira Roess, Gisela Butera

GW Research Days 2015

Schistosomiasis is a neglected tropical disease caused by a parasitic flatworm which afflicts over 200 million people in the poorest regions of Africa. Carried by snails living in fresh, stagnant water, the parasite penetrates human skin upon contact, causing the victim to suffer a range of symptoms including diarrhea, blood in the urine, and eventual death. Despite its prevalence, schistosomiasis is preventable, treatable, and curable once a control program is implemented. Substantial reduction of schistosomiasis would relieve suffering and produce many socio-economic benefits, including higher productivity and higher school attendance rates. Disease transmission is directly tied to the environment, and …

An Exploratory Study Of Dog Park Visits As A Risk Factor For Exposure To Drug-Resistant Extra-Intestinal Pathogenic E. Coli (Expec)., Lubna N. Ahmed, Lance B. Price, Jay P. Graham

Environmental and Occupational Health Faculty Publications

Background

Extraintestinal pathogenic E. coli (ExPEC) are common causative agents of urinary tract infections in humans. Dogs have been found to harbor ExPEC. This study tested stool samples from dogs (n = 16), the shoes of dog park visitors (n = 16) and the shoes of controls (n = 16) for ExPEC. Phenotypic resistance of isolates was characterized.

Findings

ExPEC were present in one-third of the dog stool samples, 9% of the samples from the shoes of dog park visitors and 6% of control samples. Half of the ExPEC isolates were multi-drug resistant.

Discussion

The findings suggest that dogs may …

Staphylococcus Aureus And The Ecology Of The Nasal Microbiome, Cindy M. Liu, Lance B. Price, Bruce A. Hungate, Alison G. Abraham, Lisbeth A. Larsen, Kaare Christensen, Marc Stegger, Robert Skov, Paal Skytt Andersen

Environmental and Occupational Health Faculty Publications

The human microbiome can play a key role in host susceptibility to pathogens, including in the nasal cavity, a site favored by Staphylococcus aureus. However, what determines our resident nasal microbiota—the host or the environment—and can interactions among nasal bacteria determine S. aureus colonization? Our study of 46 monozygotic and 43 dizygotic twin pairs revealed that nasal microbiota is an environmentally derived trait, but the host’s sex and genetics significantly influence nasal bacterial density. Although specific taxa, including lactic acid bacteria, can determine S. aureus colonization, their negative interactions depend on thresholds of absolute abundance. These findings demonstrate that …

Preventing Slips And Falls Through Leisure-Time Physical Activity: Findings From A Study Of Limited-Service Restaurants, Alberto J. Caban-Martinez, Theodore K. Courtney, Wen-Ruey Chang, David A. Lombardi, Yueng-Hsiang Huang, Melanie J. Brennan, Melissa J. Perry, Jeffrey N. Katz, Santosh K. Verma

Environmental and Occupational Health Faculty Publications

Background/Objective

Physical activity has been shown to be beneficial at improving health in some medical conditions and in preventing injury. Epidemiologic studies suggest that physical activity is one factor associated with a decreased risk for slips and falls in the older (≥65 years) adult population. While the risk of slips and falls is generally lower in younger than in older adults; little is known of the relative contribution of physical activity in preventing slips and falls in younger adults. We examined whether engagement in leisure-time physical activity (LTPA) was protective of slips and falls among a younger/middle-aged (≤50 years old) …

Origin And Evolution Of European Community-Acquired Methicillin-Resistant Staphylococcus Aureus, Marc Stegger, Thierry Wirth, Paal S. Andersen, Robert L. Skov, Anna De Grassi, Lance B. Price, +23 Additional Authors

Environmental and Occupational Health Faculty Publications

Community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) was recognized in Europe and worldwide in the late 1990s. Within a decade, several genetically and geographically distinct CA-MRSA lineages carrying the small SCCmec type IV and V genetic elements and the Panton-Valentine leukocidin (PVL) emerged around the world. In Europe, the predominant CA-MRSA strain belongs to clonal complex 80 (CC80) and is resistant to kanamycin/amikacin and fusidic acid. CC80 was first reported in 1993 but was relatively rare until the late 1990s. It has since been identified throughout North Africa, the Middle East, and Europe, with recent sporadic reports in sub-Saharan Africa. While …