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Emerging Infectious Disease

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https://www.readbyqxmd.com/read/28719289/what-is-a-hotspot-anyway
#1
Justin Lessler, Andrew S Azman, Heather S McKay, Sean M Moore
AbstractThe importance of spatial clusters, or "hotspots," in infectious disease epidemiology has been increasingly recognized, and targeting hotspots is often seen as an important component of disease-control strategies. However, the precise meaning of "hotspot" varies widely in current research and policy documents. Hotspots have been variously described as areas of elevated incidence or prevalence, higher transmission efficiency or risk, or higher probability of disease emergence. This ambiguity has led to confusion and may result in mistaken inferences regarding the best way to target interventions...
June 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28719277/reducing-uncertainty-for-acute-febrile-illness-in-resource-limited-settings-the-current-diagnostic-landscape
#2
Matthew L Robinson, Yukari C Manabe
AbstractDiagnosing the cause of acute febrile illness in resource-limited settings is important-to give the correct antimicrobials to patients who need them, to prevent unnecessary antimicrobial use, to detect emerging infectious diseases early, and to guide vaccine deployment. A variety of approaches are yielding more rapid and accurate tests that can detect more pathogens in a wider variety of settings. After decades of slow progress in diagnostics for acute febrile illness in resource-limited settings, a wave of converging advancements will enable clinicians in resource-limited settings to reduce uncertainty for the diagnosis of acute febrile illness...
June 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28718914/reduced-numbers-of-circulating-group-2-innate-lymphoid-cells-in-patients-with-common-variable-immunodeficiency
#3
Christoph B Geier, Sophie Kraupp, David Bra, Martha M Eibl, Jocelyn R Farmer, Krisztian Csomos, Jolan E Walter, Hermann M Wolf
Recent studies identified an emerging role of group 2 and 3 innate lymphoid cells (ILCs) as key players in the generation of T-dependent and T-independent antibody production. In this retrospective case-control study CD117(+) ILCs (including the majority of ILC2 and ILC3) were reduced in patients with common variable immunodeficiency (CVID). The reduction in CD117(+) ILCs was distinctive to CVID and could not be observed in patients with X linked agammaglobulinemia (XLA). Patients with a more pronounced reduction in CD117(+) ILC numbers showed significantly lower numbers of peripheral MZ-like B cells and an increased prevalence of chronic, non-infectious enteropathy...
July 18, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28717729/middle-eastern-conflicts-implications-for-refugee-health-in-the-european-union-and-middle-eastern-host-countries
#4
Michael Silbermann, Michel Daher, Rejin Kebudi, Omar Nimri, Mazin Al-Jadiry, Lea Baider
Until very recently, health care in conflict settings was based on a model developed in the second half of the twentieth century. Things have changed, and present civil wars, such as those that are currently taking place in the Middle East, do not address the complexity of the ongoing armed conflicts in countries such as Syria, Iraq, and Afghanistan. These conflicts have caused a significant increase in the number of refugees in the region, as well as in Europe. Hundreds of thousands of refugees succeed in settling in mid- and north-European countries, and their health issues are becoming of great importance...
December 2016: Journal of Global Oncology
https://www.readbyqxmd.com/read/28714178/emergence-and-whole-genome-sequence-of-senecavirus-a-in-colombia
#5
D Sun, F Vannucci, T P Knutson, C Corzo, D G Marthaler
In 2015 and 2016, Senecavirus A (SVA) emerged as an infectious disease in Brazil, China and the United States (US). In a Colombian commercial swine farm, vesicles on the snout and coronary bands were reported and tested negative for foot-and-mouth disease virus (FMDv), but positive for SVA. The whole-genome phylogenetic analysis indicates the Colombian strain clusters with the strains from the United States, not with the recent SVA strains from Brazil.
July 16, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28713859/fungus-causing-white-nose-syndrome-in-bats-accumulates-genetic-variability-in-north-america-with-no-sign-of-recombination
#6
Jigar Trivedi, Josianne Lachapelle, Karen J Vanderwolf, Vikram Misra, Craig K R Willis, John M Ratcliffe, Rob W Ness, James B Anderson, Linda M Kohn
Emerging fungal diseases of wildlife are on the rise worldwide, and the white-nose syndrome (WNS) epidemic in North American bats is a catastrophic example. The causal agent of WNS is a single clone of the fungus Pseudogymnoascus destructans. Early evolutionary change in this clonal population has major implications for disease ecology and conservation. Accumulation of variation in the fungus through mutation, and shuffling of variation through recombination, could affect the virulence and transmissibility of the fungus and the durability of what appears to be resistance arising in some bat populations...
July 2017: MSphere
https://www.readbyqxmd.com/read/28711026/recent-advancement-in-biosensors-technology-for-animal-and-livestock-health-management
#7
REVIEW
Suresh Neethirajan, Satish K Tuteja, Sheng-Tung Huang, David Kelton
The term biosensors encompasses devices that have the potential to quantify physiological, immunological and behavioural responses of livestock and multiple animal species. Novel biosensing methodologies offer highly specialised monitoring devices for the specific measurement of individual and multiple parameters covering an animal's physiology as well as monitoring of an animal's environment. These devices are not only highly specific and sensitive for the parameters being analysed, but they are also reliable and easy to use, and can accelerate the monitoring process...
July 8, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28710611/bad-bacteria-in-acute-appendicitis-rare-but-relevant
#8
Alexander Reinisch, Patrizia Malkomes, Nils Habbe, Wolf Otto Bechstein, Juliane Liese
PURPOSE: Bacterial infections are a factor for morbidity in patients with acute appendicitis (AA). The spreading of multidrug-resistant (MDR) bacteria is a significant problem in surgery, and the most relevant MDR pathogens are summarized as Enterobacteriaceae, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterococci (ESKAPE) bacteria. Data regarding the species and distribution of bacteria in AA are available, but information about the resistances and their relevance is deficient...
July 15, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28706720/endotype-driven-treatment-in-chronic-upper-airway-diseases
#9
REVIEW
Glynnis De Greve, Peter W Hellings, Wytske J Fokkens, Benoit Pugin, Brecht Steelant, Sven F Seys
Rhinitis and rhinosinusitis are the two major clinical entities of chronic upper airway disease. Chronic rhinosinusitis (CRS) and allergic rhinitis (AR) affect respectively up to 10 and 30% of the total population, hence being associated with an important socio-economic burden. Different phenotypes of rhinitis and CRS have been described based on symptom severity and duration, atopy status, level of control, comorbidities and presence or absence of nasal polyps in CRS. The underlying pathophysiological mechanisms are diverse, with different, and sometimes overlapping, endotypes being recognized...
2017: Clinical and Translational Allergy
https://www.readbyqxmd.com/read/28706039/when-an-emerging-disease-becomes-endemic
#10
REVIEW
Graham F Medley, Anna Vassall
Epidemics, such as HIV in the early 1980s and Ebola in 2014, inspire decisive government investment and action, and individual and societal concern, sometimes bordering on panic. By contrast, endemic diseases, such as HIV in 2017 and tuberculosis, struggle to maintain the same attention. For many, the paradox is that endemic disease, in its totality, continues to impose a far higher public health burden than epidemic disease. Overall, the swift political response to epidemics has resulted in success. It has proven possible to eradicate epidemic diseases, often without the availability of vaccines and other biomedical technologies...
July 14, 2017: Science
https://www.readbyqxmd.com/read/28706038/improving-vaccine-trials-in-infectious-disease-emergencies
#11
REVIEW
Marc Lipsitch, Nir Eyal
Unprecedented global effort is under way to facilitate the testing of countermeasures in infectious disease emergencies. Better understanding of the various options for trial design is needed in advance of outbreaks, as is preliminary global agreement on the most suitable designs for the various scenarios. What would enhance the speed, validity, and ethics of clinical studies of such countermeasures? Focusing on studies of vaccine efficacy and effectiveness in emergencies, we highlight three needs: for formal randomized trials-even in most emergencies; for individually randomized trials-even in many emergencies; and for six areas of innovation in trial methodology...
July 14, 2017: Science
https://www.readbyqxmd.com/read/28706037/opportunities-and-challenges-in-modeling-emerging-infectious-diseases
#12
REVIEW
C Jessica E Metcalf, Justin Lessler
The term "pathogen emergence" encompasses everything from previously unidentified viruses entering the human population to established pathogens invading new populations and the evolution of drug resistance. Mathematical models of emergent pathogens allow forecasts of case numbers, investigation of transmission mechanisms, and evaluation of control options. Yet, there are numerous limitations and pitfalls to their use, often driven by data scarcity. Growing availability of data on pathogen genetics and human ecology, coupled with computational and methodological innovations, is amplifying the power of models to inform the public health response to emergence events...
July 14, 2017: Science
https://www.readbyqxmd.com/read/28706036/driving-improvements-in-emerging-disease-surveillance-through-locally-relevant-capacity-strengthening
#13
REVIEW
Jo E B Halliday, Katie Hampson, Nick Hanley, Tiziana Lembo, Joanne P Sharp, Daniel T Haydon, Sarah Cleaveland
Emerging infectious diseases (EIDs) threaten the health of people, animals, and crops globally, but our ability to predict their occurrence is limited. Current public health capacity and ability to detect and respond to EIDs is typically weakest in low- and middle-income countries (LMICs). Many known drivers of EID emergence also converge in LMICs. Strengthening capacity for surveillance of diseases of relevance to local populations can provide a mechanism for building the cross-cutting and flexible capacities needed to tackle both the burden of existing diseases and EID threats...
July 14, 2017: Science
https://www.readbyqxmd.com/read/28705746/first-report-of-ehrlichia-infection-in-goats-china
#14
Hui Zhang, Zhenyu Chang, Khalid Mehmood, Yajing Wang, Mujeeb Ur Rehman, Fazul Nabi, Ahamad Jawad Sabir, Xueting Liu, Xiaoxing Wu, Xinxin Tian, Donghai Zhou
Ehrlichiosis is an emerging infectious disease of domestic animals which is transmitted by ticks. This disease has been reported earlier in most parts of China in dogs, cattle and humans, but there is no published data regarding this disease in goats. The present study provided the evidence of Ehrlichia infection in goats in Wuhan, China on the basis of clinical signs, gross lesions, serum-biochemical, histopathological and PCR. Twenty four goats were presented to the veterinary hospital of Huazhong Agricultural University during July, 2016...
July 11, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28705717/whole-genome-characterization-of-uruguayan-strains-of-avian-infectious-bronchitis-virus-reveals-extensive-recombination-between-the-two-major-south-american-lineages
#15
Ana Marandino, Gonzalo Tomás, Yanina Panzera, Gonzalo Greif, Adriana Parodi-Talice, Martín Hernández, Claudia Techera, Diego Hernández, Ruben Pérez
Infectious bronchitis virus (Gammacoronavirus, Coronaviridae) is a genetically variable RNA virus that causes one of the most persistent respiratory diseases in poultry. The virus is classified in genotypes and lineages with different epidemiological relevance. Two lineages of the GI genotype (11 and 16) have been widely circulating for decades in South America. GI-11 is an exclusive South American lineage while the GI-16 lineage is distributed in Asia, Europe and South America. Here, we obtained the whole genome of two Uruguayan strains of the GI-11 and GI-16 lineages using Illumina high-throughput sequencing...
July 10, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28704402/are-disease-reservoirs-special-taxonomic-and-life-history-characteristics
#16
Benjamin T Plourde, Tristan L Burgess, Evan A Eskew, Tara M Roth, Nicole Stephenson, Janet E Foley
Pathogens that spill over between species cause a significant human and animal health burden. Here, we describe characteristics of animal reservoirs that are required for pathogen spillover. We assembled and analyzed a database of 330 disease systems in which a pathogen spills over from a reservoir of one or more species. Three-quarters of reservoirs included wildlife, and 84% included mammals. Further, 65% of pathogens depended on a community of reservoir hosts, rather than a single species, for persistence...
2017: PloS One
https://www.readbyqxmd.com/read/28702459/a-review-of-quantitative-tools-used-to-assess-the-epidemiology-of-porcine-reproductive-and-respiratory-syndrome-in-u-s-swine-farms-using-dr-morrison-s-swine-health-monitoring-program-data
#17
REVIEW
Carles Vilalta, Andreia G Arruda, Steven J P Tousignant, Pablo Valdes-Donoso, Petra Muellner, Ulrich Muellner, Moh A Alkhamis, Robert B Morrison, Andres M Perez
Porcine reproductive and respiratory syndrome (PRRS) causes far-reaching financial losses to infected countries and regions, including the U.S. The Dr. Morrison's Swine Health Monitoring Program (MSHMP) is a voluntary initiative in which producers and veterinarians share sow farm PRRS status weekly to contribute to the understanding, in quantitative terms, of PRRS epidemiological dynamics and, ultimately, to support its control in the U.S. Here, we offer a review of a variety of analytic tools that were applied to MSHMP data to assess disease dynamics in quantitative terms to support the decision-making process for veterinarians and producers...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28702260/renin-angiotensin-system-modifying-therapies-are-associated-with-improved-pulmonary-health
#18
Maira Soto, Soo I Bang, Jeff McCombs, Kathleen E Rodgers
BACKGROUND: Pulmonary diseases are often complicated and have diverse etiologies. One common factor is the lack of therapeutics available for these diseases. The goal of this study was to investigate the impact of Renin-Angiotensin System (RAS)-modifying medications on incidence and time to pulmonary complications. METHODS: A retrospective analysis was conducted using claims data from a US commercial insurance company (2007-2013). The study consisted of patients with an emerging hypertension (HTN) diagnosis...
2017: Clinical Diabetes and Endocrinology
https://www.readbyqxmd.com/read/28701778/the-virulent-emerging-genotype-b-of-deformed-wing-virus-is-closely-linked-to-overwinter-honeybee-worker-loss
#19
Myrsini E Natsopoulou, Dino P McMahon, Vincent Doublet, Eva Frey, Peter Rosenkranz, Robert J Paxton
Bees are considered to be threatened globally, with severe overwinter losses of the most important commercial pollinator, the Western honeybee, a major concern in the Northern Hemisphere. Emerging infectious diseases have risen to prominence due to their temporal correlation with colony losses. Among these is Deformed wing virus (DWV), which has been frequently linked to colony mortality. We now provide evidence of a strong statistical association between overwintering colony decline in the field and the presence of DWV genotype-B (DWV-B), a genetic variant of DWV that has recently been shown to be more virulent than the original DWV genotype-A...
July 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28700148/-assessment-and-treatment-of-genitourinary-infections
#20
Paul Martel, Olivier M'Baya, Laurence Senn, Patrice Jichlinski, Yannick Cerantola
Antibiotics are most commonly prescribed for urinary bacterial infections. The purpose of this article is to review the most common infections of the genitourinary tract and to guide the choice of the most appropriate treatment. This choice depends also on the patients general state, local associated conditions and can range from observation to an emergency hospitalisation. Primary care physicians remain in the first line to take care of these patients but the urologists or the infectious disease specialists can provide some help in complex situations...
November 30, 2016: Revue Médicale Suisse
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