16 results on '"Stephen Ostroff"'
Search Results
2. Outbreak of Influenza A (H3N2) Variant Virus Infection among Attendees of an Agricultural Fair, Pennsylvania, USA, 2011
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Karen K. Wong, Adena Greenbaum, Maria E. Moll, James Lando, Erin L. Moore, Rahul Ganatra, Matthew Biggerstaff, Eugene Lam, Erica E. Smith, Aaron D. Storms, Jeffrey R. Miller, Virginia Dato, Kumar Nalluswami, Atmaram Nambiar, Sharon A. Silvestri, James R. Lute, Stephen Ostroff, Kathy Hancock, Alicia Branch, Susan C. Trock, Alexander Klimov, Bo Shu, Lynnette Brammer, Scott Epperson, Lyn Finelli, and Michael A. Jhung
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influenza ,human ,influenza A virus ,H3N2 subtype ,H3N2 subtype variant ,swine diseases ,Medicine ,Infectious and parasitic diseases ,RC109-216 - Abstract
During August 2011, influenza A (H3N2) variant [A(H3N2)v] virus infection developed in a child who attended an agricultural fair in Pennsylvania, USA; the virus resulted from reassortment of a swine influenza virus with influenza A(H1N1)pdm09. We interviewed fair attendees and conducted a retrospective cohort study among members of an agricultural club who attended the fair. Probable and confirmed cases of A(H3N2)v virus infection were defined by serology and genomic sequencing results, respectively. We identified 82 suspected, 4 probable, and 3 confirmed case-patients who attended the fair. Among 127 cohort study members, the risk for suspected case status increased as swine exposure increased from none (4%; referent) to visiting swine exhibits (8%; relative risk 2.1; 95% CI 0.2–53.4) to touching swine (16%; relative risk 4.4; 95% CI 0.8–116.3). Fairs may be venues for zoonotic transmission of viruses with epidemic potential; thus, health officials should investigate respiratory illness outbreaks associated with agricultural events.
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- 2012
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3. Capacity of Public Health Surveillance to Comply with Revised International Health Regulations, USA
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Kia E. Armstrong, Scott J. N. McNabb, Lisa D. Ferland, Tim Stephens, Anna Muldoon, Jose A. Fernandez, and Stephen Ostroff
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World Health Organization ,population surveillance ,reporting capacity ,International Health Regulations 2005 ,United States ,research ,Medicine ,Infectious and parasitic diseases ,RC109-216 - Abstract
Public health surveillance is essential for detecting and responding to infectious diseases and necessary for compliance with the revised International Health Regulations (IHR) 2005. To assess reporting capacities and compliance with IHR of all 50 states and Washington, DC, we sent a questionnaire to respective epidemiologists; 47 of 51 responded. Overall reporting capacity was high. Eighty-one percent of respondents reported being able to transmit notifications about unknown or unexpected events to the Centers for Disease Control and Prevention (CDC) daily. Additionally, 80% of respondents reported use of a risk assessment tool to determine whether CDC should be notified of possible public health emergencies. These findings suggest that most states have systems in place to ensure compliance with IHR. However, full state-level compliance will require additional efforts.
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- 2010
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4. Household Effects of School Closure during Pandemic (H1N1) 2009, Pennsylvania, USA
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Thomas L. Gift, Rakhee S. Palekar, Samir V. Sodha, Charlotte K. Kent, Ryan P. Fagan, W. Roodly Archer, Paul J. Edelson, Tiffany Marchbanks, Achuyt Bhattarai, David L. Swerdlow, Stephen Ostroff, and Martin I. Meltzer
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Influenza A virus ,influenza ,H1N1 subtype ,pandemic (H1N1) 2009 ,compliance ,economics ,Medicine ,Infectious and parasitic diseases ,RC109-216 - Abstract
To determine the effects of school closure, we surveyed 214 households after a 1-week elementary school closure because of pandemic (H1N1) 2009. Students spent 77% of the closure days at home, 69% of students visited at least 1 other location, and 79% of households reported that adults missed no days of work to watch children.
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- 2010
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5. Developing National Epidemiological Capacity to Meet the Challenges of Emerging Infections in Germany
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Lyle R. Petersen, Andrea Ammon, Osamah Hamouda, Thomas Breuer, Sonja Kießling, Baerbel Bellach, Ursula Niemer, Franz Josef Bindert, Stephen Ostroff, and Reinhard Kurth
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1999 outcomes ,Germany ,implementation strategies ,national epidemiologic capacity ,Medicine ,Infectious and parasitic diseases ,RC109-216 - Abstract
In January 1996, the Robert Koch Institute, Germany’s national public health institute, began strengthening its epidemiologic capacity to respond to emerging and other infectious diseases. Six integrated strategies were initiated: developing employee training, outbreak investigation, and epidemiologic research programs; strengthening surveillance systems; improving communications to program partners and constituents; and building international collaborations. By December 1999, five employees had completed a 2-year applied epidemiology training program, 186 health department personnel had completed a 2-week training course, 27 outbreak investigations had been completed, eight short-term research projects had been initiated, major surveillance and epidemiologic research efforts for foodborne and nosocomial infections had begun, and 16 scientific manuscripts had been published or were in press. The German experience indicates that, with a concerted effort, considerable progress in building a national applied infectious disease program can be achieved in a short time frame.
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- 2000
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6. A comparison of non-typhoidal Salmonella from humans and food animals using pulsed-field gel electrophoresis and antimicrobial susceptibility patterns.
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Carol H Sandt, Paula J Fedorka-Cray, Deepanker Tewari, Stephen Ostroff, Kevin Joyce, and Nkuchia M M'ikanatha
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Medicine ,Science - Abstract
Salmonellosis is one of the most important foodborne diseases affecting humans. To characterize the relationship between Salmonella causing human infections and their food animal reservoirs, we compared pulsed-field gel electrophoresis (PFGE) and antimicrobial susceptibility patterns of non-typhoidal Salmonella isolated from ill humans in Pennsylvania and from food animals before retail. Human clinical isolates were received from 2005 through 2011 during routine public health operations in Pennsylvania. Isolates from cattle, chickens, swine and turkeys were recovered during the same period from federally inspected slaughter and processing facilities in the northeastern United States. We found that subtyping Salmonella isolates by PFGE revealed differences in antimicrobial susceptibility patterns and, for human Salmonella, differences in sources and invasiveness that were not evident from serotyping alone. Sixteen of the 20 most common human Salmonella PFGE patterns were identified in Salmonella recovered from food animals. The most common human Salmonella PFGE pattern, Enteritidis pattern JEGX01.0004 (JEGX01.0003ARS), was associated with more cases of invasive salmonellosis than all other patterns. In food animals, this pattern was almost exclusively (99%) found in Salmonella recovered from chickens and was present in poultry meat in every year of the study. Enteritidis pattern JEGX01.0004 (JEGX01.0003ARS) was associated with susceptibility to all antimicrobial agents tested in 94.7% of human and 97.2% of food animal Salmonella isolates. In contrast, multidrug resistance (resistance to three or more classes of antimicrobial agents) was observed in five PFGE patterns. Typhimurium patterns JPXX01.0003 (JPXX01.0003 ARS) and JPXX01.0018 (JPXX01.0002 ARS), considered together, were associated with resistance to five or more classes of antimicrobial agents: ampicillin, chloramphenicol, streptomycin, sulfonamides and tetracycline (ACSSuT), in 92% of human and 80% of food animal Salmonella isolates. The information from our study can assist in source attribution, outbreak investigations, and tailoring of interventions to maximize their impact on prevention.
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- 2013
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7. Local spatial and temporal processes of influenza in Pennsylvania, USA: 2003-2009.
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James H Stark, Ravi Sharma, Stephen Ostroff, Derek A T Cummings, Bard Ermentrout, Samuel Stebbins, Donald S Burke, and Stephen R Wisniewski
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Medicine ,Science - Abstract
Influenza is a contagious respiratory disease responsible for annual seasonal epidemics in temperate climates. An understanding of how influenza spreads geographically and temporally within regions could result in improved public health prevention programs. The purpose of this study was to summarize the spatial and temporal spread of influenza using data obtained from the Pennsylvania Department of Health's influenza surveillance system.We evaluated the spatial and temporal patterns of laboratory-confirmed influenza cases in Pennsylvania, United States from six influenza seasons (2003-2009). Using a test of spatial autocorrelation, local clusters of elevated risk were identified in the South Central region of the state. Multivariable logistic regression indicated that lower monthly precipitation levels during the influenza season (OR = 0.52, 95% CI: 0.28, 0.94), fewer residents over age 64 (OR = 0.27, 95% CI: 0.10, 0.73) and fewer residents with more than a high school education (OR = 0.76, 95% CI: 0.61, 0.95) were significantly associated with membership in this cluster. In addition, time series analysis revealed a temporal lag in the peak timing of the influenza B epidemic compared to the influenza A epidemic.These findings illustrate a distinct spatial cluster of cases in the South Central region of Pennsylvania. Further examination of the regional transmission dynamics within these clusters may be useful in planning public health influenza prevention programs.
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- 2012
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8. Local variations in spatial synchrony of influenza epidemics.
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James H Stark, Derek A T Cummings, Bard Ermentrout, Stephen Ostroff, Ravi Sharma, Samuel Stebbins, Donald S Burke, and Stephen R Wisniewski
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Medicine ,Science - Abstract
Understanding the mechanism of influenza spread across multiple geographic scales is not complete. While the mechanism of dissemination across regions and states of the United States has been described, understanding the determinants of dissemination between counties has not been elucidated. The paucity of high resolution spatial-temporal influenza incidence data to evaluate disease structure is often not available.We report on the underlying relationship between the spread of influenza and human movement between counties of one state. Significant synchrony in the timing of epidemics exists across the entire state and decay with distance (regional correlation=62%). Synchrony as a function of population size display evidence of hierarchical spread with more synchronized epidemics occurring among the most populated counties. A gravity model describing movement between two populations is a stronger predictor of influenza spread than adult movement to and from workplaces suggesting that non-routine and leisure travel drive local epidemics.These findings highlight the complex nature of influenza spread across multiple geographic scales.
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- 2012
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9. A Proactive Response to Prescription Opioid Abuse
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Robert M. Califf, Stephen Ostroff, and Janet Woodcock
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medicine.medical_specialty ,Prescription Drug Misuse ,Safeguarding ,03 medical and health sciences ,0302 clinical medicine ,Health care ,medicine ,Humans ,Pain Management ,030212 general & internal medicine ,Psychiatry ,health care economics and organizations ,Drug Labeling ,Drug labeling ,business.industry ,United States Food and Drug Administration ,Opioid-Related Disorders ,Opioid abuse ,General Medicine ,Pain management ,United States ,Analgesics, Opioid ,Prescription opioid ,Drug and Narcotic Control ,business ,030217 neurology & neurosurgery - Abstract
The FDA has committed to working with other agencies, health care providers, industry, and patients and families to deal proactively with the opioid abuse crisis, while safeguarding appropriate access to vitally important pain medications for the patients who need them.
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- 2016
10. Human Salmonella Infections Linked to Contaminated Dry Dog and Cat Food, 2006–2008
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Casey Barton, Behravesh, Aimee, Ferraro, Marshall, Deasy, Virginia, Dato, Mària, Moll, Carol, Sandt, Nancy K, Rea, Regan, Rickert, Chandra, Marriott, Kimberly, Warren, Veronica, Urdaneta, Ellen, Salehi, Elizabeth, Villamil, Tracy, Ayers, R M, Hoekstra, Jana L, Austin, Stephen, Ostroff, Ian T, Williams, and Sarah, Alexander
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Adult ,Male ,medicine.medical_specialty ,Salmonella ,Veterinary medicine ,Time Factors ,Adolescent ,medicine.disease_cause ,Disease Outbreaks ,Pet food ,Young Adult ,Dogs ,Epidemiology ,medicine ,Animals ,Humans ,Food microbiology ,Child ,Feces ,Aged ,Aged, 80 and over ,Transmission (medicine) ,business.industry ,Zoonosis ,Infant ,Outbreak ,Middle Aged ,medicine.disease ,Animal Feed ,United States ,Case-Control Studies ,Child, Preschool ,Salmonella Infections ,Pediatrics, Perinatology and Child Health ,Cats ,Food Microbiology ,Female ,business - Abstract
OBJECTIVE: Human Salmonella infections associated with dry pet food have not been previously reported. We investigated such an outbreak of Salmonella Schwarzengrund and primarily affecting young children. PATIENTS AND METHODS: Two multistate case-control studies were conducted to determine the source and mode of infections among case-patients with the outbreak strain. Study 1 evaluated household exposures to animals and pet foods, and study 2 examined risk factors for transmission among infant case-patients. Environmental investigations were conducted. RESULTS: Seventy-nine case-patients in 21 states were identified; 48% were children aged 2 years or younger. Case-households were significantly more likely than control households to report dog contact (matched odds ratio [mOR]: 3.6) and to have recently purchased manufacturer X brands of dry pet food (mOR: 6.9). Illness among infant case-patients was significantly associated with feeding pets in the kitchen (OR: 4.4). The outbreak strain was isolated from opened bags of dry dog food produced at plant X, fecal specimens from dogs that ate manufacturer X dry dog food, and an environmental sample and unopened bags of dog and cat foods from plant X. More than 23 000 tons of pet foods were recalled. After additional outbreak-linked illnesses were identified during 2008, the company recalled 105 brands of dry pet food and permanently closed plant X. CONCLUSIONS: Dry dog and cat foods manufactured at plant X were linked to human illness for a 3-year period. This outbreak highlights the importance of proper handling and storage of pet foods in the home to prevent human illness, especially among young children.
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- 2010
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11. FDA as a catalyst for translation
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Stephen Ostroff and Robert M. Califf
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Clinical Trials as Topic ,medicine.medical_specialty ,United States Food and Drug Administration ,business.industry ,Systems Biology ,Data management ,Public health ,Decision Making ,General Medicine ,United States ,Translational Research, Biomedical ,Patient safety ,Phenotype ,Transformative learning ,Drug approval ,Humans ,Medicine ,Engineering ethics ,Patient Safety ,business ,Drug Approval ,Biomedicine ,Health policy ,Preventive healthcare - Abstract
Biomedicine has entered a transformative era, one in which advances in mechanistic biology, bioengineering, data management, and health policy promise to deliver unprecedented benefits for public health, such as precision and preventive medicine, theranostic imaging techniques, and mobile health.
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- 2015
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12. Sunscreen and the FDA
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Robert M. Califf and Stephen Ostroff
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medicine.medical_specialty ,business.industry ,United States Food and Drug Administration ,medicine ,Government Regulation ,Humans ,General Medicine ,Intensive care medicine ,business ,Dermatology ,Drug Approval ,Sunscreening Agents - Abstract
The FDA has recommended a pathway to expedite completion of studies to ensure that new sunscreen ingredients are safe and effective. A renewed commitment to collaboration on high-quality studies could lead to breakthroughs in melanoma prevention.
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- 2015
13. An outbreak of 2009 pandemic influenza A (H1N1) virus infection in an elementary school in Pennsylvania
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Tiffany L, Marchbanks, Achuyt, Bhattarai, Ryan P, Fagan, Stephen, Ostroff, Samir V, Sodha, Mària E, Moll, Bruce Y, Lee, Chung-Chou H, Chang, Brent, Ennis, Phyllis, Britz, Anthony, Fiore, Michael, Nguyen, Rakhee, Palekar, W Roodly, Archer, Thomas L, Gift, Rebecca, Leap, Benjamin L, Nygren, Simon, Cauchemez, Frederick J, Angulo, David, Swerdlow, and Lyn, Finelli
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Microbiology (medical) ,Adult ,Male ,Adolescent ,Orthomyxoviridae ,education ,Supplement Articles ,medicine.disease_cause ,Virus ,Disease Outbreaks ,Interviews as Topic ,Young Adult ,Influenza A Virus, H1N1 Subtype ,Influenza, Human ,Influenza A virus ,Medicine ,Humans ,Young adult ,Child ,Aged ,Aged, 80 and over ,Infection Control ,Schools ,biology ,business.industry ,Infant, Newborn ,Outbreak ,Infant ,Middle Aged ,Pennsylvania ,biology.organism_classification ,Confidence interval ,Infectious Diseases ,Relative risk ,Child, Preschool ,Immunology ,Female ,Viral disease ,business ,Demography - Abstract
In May 2009, one of the earliest outbreaks of 2009 pandemic influenza A virus (pH1N1) infection resulted in the closure of a semi-rural Pennsylvania elementary school. Two sequential telephone surveys were administered to 1345 students (85% of the students enrolled in the school) and household members in 313 households to collect data on influenza-like illness (ILI). A total of 167 persons (12.4%) among those in the surveyed households, including 93 (24.0%) of the School A students, reported ILI. Students were 3.1 times more likely than were other household members to develop ILI (95% confidence interval [CI], 2.3-4.1). Fourth-grade students were more likely to be affected than were students in other grades (relative risk, 2.2; 95% CI, 1.2-3.9). pH1N1 was confirmed in 26 (72.2%) of the individuals tested by real-time reverse-transcriptase polymerase chain reaction. The outbreak did not resume upon the reopening of the school after the 7-day closure. This investigation found that pH1N1 outbreaks at schools can have substantial attack rates; however, grades and classrooms are affected variably. Additional study is warranted to determine the effectiveness of school closure during outbreaks.
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- 2011
14. Control of Infectious Diseases: A Twentieth-Century Public Health Achievement
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Alexandra M. Levitt, D. Peter Drotman, and Stephen Ostroff
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The marked decline in infectious-disease-associated mortality that took place in the United States during the first half of the 20th century contributed to the sharp drop in infant and child mortality and the more than thirty-year average increase in life expectancy over the past 100 years. The 19th-century discovery that microorganisms are the cause of many diseases led to substantial improvements in sanitation and hygiene, formulations of vaccinations, development of diagnostic tests, and the introduction of antibiotics. Despite this overall progress, devastating pandemics of infectious diseases occurred during the 20th century including the influenza in 1918 and human immunodeficiency virus first recognized in 1981. This chapter reviews major 20th-century achievements in the control of infectious diseases in the United States and ends with a discussion of challenges for the 21st century.
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- 2006
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15. Genomics in the land of regulatory science
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William Slikker, Marion Healy, Stephen Ostroff, Burton W. Blais, Martine Dubuc, Weida Tong, and Primal Silva
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geography ,Knowledge management ,Summit ,geography.geographical_feature_category ,Food Safety ,Traceability ,Mechanism (biology) ,Process (engineering) ,Management science ,business.industry ,Science ,Decision Making ,Computational Biology ,Genomics ,Context (language use) ,General Medicine ,Toxicology ,Transparency (behavior) ,Regulatory science ,Next generation sequencing ,Humans ,Business - Abstract
Genomics science has played a major role in the generation of new knowledge in the basic research arena, and currently question arises as to its potential to support regulatory processes. However, the integration of genomics in the regulatory decision-making process requires rigorous assessment and would benefit from consensus amongst international partners and research communities. To that end, the Global Coalition for Regulatory Science Research (GCRSR) hosted the fourth Global Summit on Regulatory Science (GSRS2014) to discuss the role of genomics in regulatory decision making, with a specific emphasis on applications in food safety and medical product development. Challenges and issues were discussed in the context of developing an international consensus for objective criteria in the analysis, interpretation and reporting of genomics data with an emphasis on transparency, traceability and “fitness for purpose” for the intended application. It was recognized that there is a need for a global path in the establishment of a regulatory bioinformatics framework for the development of transparent, reliable, reproducible and auditable processes in the management of food and medical product safety risks. It was also recognized that training is an important mechanism in achieving internationally consistent outcomes. GSRS2014 provided an effective venue for regulators and researchers to meet, discuss common issues, and develop collaborations to address the challenges posed by the application of genomics to regulatory science, with the ultimate goal of wisely integrating novel technical innovations into regulatory decision-making.
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16. Regulatory bioinformatics for food and drug safety
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Alex Patak, Hans-Georg Eichler, William Slikker, Weida Tong, Margaret Neuspiel, Hubert Deluyker, Marion Healy, and Stephen Ostroff
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0301 basic medicine ,Exploit ,Computer science ,Emerging technologies ,Bioinformatics ,media_common.quotation_subject ,GSRS ,Toxicology ,Food safety ,03 medical and health sciences ,0302 clinical medicine ,Regulatory science ,Quality (business) ,GCRSR ,Drug safety ,media_common ,geography ,Summit ,geography.geographical_feature_category ,business.industry ,General Medicine ,Genomics ,Precision medicine ,030104 developmental biology ,Regulatory bioinformatics ,030220 oncology & carcinogenesis ,Data quality ,Next-generation sequencing ,Microbiome ,business - Abstract
“Regulatory Bioinformatics” strives to develop and implement a standardized and transparent bioinformatic framework to support the implementation of existing and emerging technologies in regulatory decision-making. It has great potential to improve public health through the development and use of clinically important medical products and tools to manage the safety of the food supply. However, the application of regulatory bioinformatics also poses new challenges and requires new knowledge and skill sets. In the latest Global Coalition on Regulatory Science Research (GCRSR) governed conference, Global Summit on Regulatory Science (GSRS2015), regulatory bioinformatics principles were presented with respect to global trends, initiatives and case studies. The discussion revealed that datasets, analytical tools, skills and expertise are rapidly developing, in many cases via large international collaborative consortia. It also revealed that significant research is still required to realize the potential applications of regulatory bioinformatics. While there is significant excitement in the possibilities offered by precision medicine to enhance treatments of serious and/or complex diseases, there is a clear need for further development of mechanisms to securely store, curate and share data, integrate databases, and standardized quality control and data analysis procedures. A greater understanding of the biological significance of the data is also required to fully exploit vast datasets that are becoming available. The application of bioinformatics in the microbiological risk analysis paradigm is delivering clear benefits both for the investigation of food borne pathogens and for decision making on clinically important treatments. It is recognized that regulatory bioinformatics will have many beneficial applications by ensuring high quality data, validated tools and standardized processes, which will help inform the regulatory science community of the requirements necessary to ensure the safe introduction and effective use of these applications.
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