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Emerging Infectious Disease

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https://www.readbyqxmd.com/read/29150905/sarcoptic-mange-in-wombats-a-review-and-future-research-directions
#1
REVIEW
J M Old, C Sengupta, E Narayan, J Wolfenden
Sarcoptic mange is caused by the mite Sarcoptes scabiei and has recently been recognized as an emerging infectious disease of wildlife worldwide. The mite is one of the main causes of population decline in southern hairy-nosed (Lasiorhinus latifrons) and bare-nosed wombats (Vombatus ursinus). This review focuses on Sarcoptes scabiei infestations in wombats and provides insights into why the disease may be so prevalent in wombats. Current treatment practices and trials conducted in the field to reduce the incidence of sarcoptic mange in wombats are described and critically reviewed...
November 18, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/29148856/novel-applications-for-serum-procalcitonin-testing-in-clinical-practice
#2
Justin J Choi, Matthew W McCarthy
Procalcitonin has emerged as a reliable marker of acute bacterial infection in hospitalized patients and the assay has recently been incorporated into several clinical algorithms to reduce antimicrobial overuse, but its use in patients with end-organ dysfunction is controversial. Areas covered: In this review, the authors examine what is known about procalcitonin testing in patients with organ dysfunction, including those with end-stage renal disease, congestive heart failure, chronic obstructive pulmonary disease, and cirrhosis, and explore how the assay is now being used in the management of non-infectious diseases...
November 17, 2017: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/29147975/batrachochytrium-salamandrivorans-and-the-risk-of-a-second-amphibian-pandemic
#3
REVIEW
Tiffany A Yap, Natalie T Nguyen, Megan Serr, Alexander Shepack, Vance T Vredenburg
Amphibians are experiencing devastating population declines globally. A major driver is chytridiomycosis, an emerging infectious disease caused by the fungal pathogens Batrachochytrium dendrobatidis (Bd) and Batrachochytrium salamandrivorans (Bsal). Bd was described in 1999 and has been linked with declines since the 1970s, while Bsal is a more recently discovered pathogen that was described in 2013. It is hypothesized that Bsal originated in Asia and spread via international trade to Europe, where it has been linked to salamander die-offs...
November 16, 2017: EcoHealth
https://www.readbyqxmd.com/read/29146711/ethics-health-policy-and-zika-from-emergency-to-global-epidemic
#4
Euzebiusz Jamrozik, Michael J Selgelid
Zika virus was recognised in 2016 as an important vector-borne cause of congenital malformations and Guillain-Barré syndrome, during a major epidemic in Latin America, centred in Northeastern Brazil. The WHO and Pan American Health Organisation (PAHO), with partner agencies, initiated a coordinated global response including public health intervention and urgent scientific research, as well as ethical analysis as a vital element of policy design. In this paper, we summarise the major ethical issues raised during the Zika epidemic, highlighting the PAHO ethics guidance and the role of ethics in emergency responses, before turning to ethical issues that are yet to be resolved...
November 16, 2017: Journal of Medical Ethics
https://www.readbyqxmd.com/read/29145171/host-target-based-approaches-against-arboviral-diseases
#5
Rebeca Froes Rocha, Juliana Lemos Del Sarto, Rafael Elias Marques, Vivian Vasconcelos Costa, Mauro Martins Teixeira
In the 20th century, socioeconomic and environmental changes facilitated the reintroduction of mosquitoes in developing cities, resulting in the reintroduction of mosquito-borne viral diseases and the dispersal of their causative agents in a worldwide scale. Recurrent outbreaks of arboviral diseases are being reported, even in regions without a previous history of arboviral disease transmission. Of note, arboviral infections represented approximately 30% of all emerging vector-borne diseases of the last decade...
November 27, 2017: Biological Chemistry
https://www.readbyqxmd.com/read/29144836/autophagy-and-inflammation
#6
Yu Matsuzawa-Ishimoto, Seungmin Hwang, Ken Cadwell
The cellular degradative pathway of autophagy has a fundamental role in immunity. Here, we review the function of autophagy and autophagy proteins in inflammation. We discuss how the autophagy machinery controls the burden of infectious agents while simultaneously limiting inflammatory pathologies, which often involves processes that are distinct from conventional autophagy. Among the newly emerging processes we describe are LC3-associated phagocytosis and targeting by autophagy proteins, both of which require many of the same proteins that mediate conventional autophagy...
November 16, 2017: Annual Review of Immunology
https://www.readbyqxmd.com/read/29144769/detection-of-emerging-zoonotic-pathogens-an-integrated-one-health-approach
#7
Brian H Bird, Jonna A K Mazet
The emergence of novel zoonotic pathogens is one of the greatest challenges to global health security. The advent of increasingly sophisticated diagnostics tools has revolutionized our capacity to detect and respond to these health threats more rapidly than ever before. Yet, no matter how sophisticated these tools become, the initial identification of emerging infectious diseases begins at the local community level. It is here that the initial human or animal case resides, and it is here that early pathogen detection would have maximum benefit...
November 16, 2017: Annual Review of Animal Biosciences
https://www.readbyqxmd.com/read/29143192/middle-east-respiratory-syndrome-and-severe-acute-respiratory-syndrome-current-therapeutic-options-and-potential-targets-for-novel-therapies
#8
REVIEW
Julie Dyall, Robin Gross, Jason Kindrachuk, Reed F Johnson, Gene G Olinger, Lisa E Hensley, Matthew B Frieman, Peter B Jahrling
No specific antivirals are currently available for two emerging infectious diseases, Middle East respiratory syndrome (MERS) and severe acute respiratory syndrome (SARS). A literature search was performed covering pathogenesis, clinical features and therapeutics, clinically developed drugs for repurposing and novel drug targets. This review presents current knowledge on the epidemiology, pathogenesis and clinical features of the SARS and MERS coronaviruses. The rationale for and outcomes with treatments used for SARS and MERS is discussed...
November 15, 2017: Drugs
https://www.readbyqxmd.com/read/29142204/sociospatial-structure-explains-marked-variation-in-brucellosis-seroprevalence-in-an-alpine-ibex-population
#9
Pascal Marchand, Pauline Freycon, Jean-Philippe Herbaux, Yvette Game, Carole Toïgo, Emmanuelle Gilot-Fromont, Sophie Rossi, Jean Hars
In a context of (re)emerging infectious diseases with wildlife reservoirs, understanding how animal ecology shapes epidemiology is a key issue, particularly in wild ungulates that share pathogens with domestic herbivores and have similar food requirements. For the first time in Europe, brucellosis (Brucella melitensis), a virulent zoonosis, persisted in an Alpine ibex (Capra ibex) population and was transmitted to cattle and humans. To better understand disease dynamics, we investigated the relationships between the spatial ecology of ibex and the epidemiology of brucellosis...
November 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29142017/modelling-the-effects-of-phylogeny-and-body-size-on-within-host-pathogen-replication-and-immune-response
#10
Soumya Banerjee, Alan S Perelson, Melanie Moses
Understanding how quickly pathogens replicate and how quickly the immune system responds is important for predicting the epidemic spread of emerging pathogens. Host body size, through its correlation with metabolic rates, is theoretically predicted to impact pathogen replication rates and immune system response rates. Here, we use mathematical models of viral time courses from multiple species of birds infected by a generalist pathogen (West Nile Virus; WNV) to test more thoroughly how disease progression and immune response depend on mass and host phylogeny...
November 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/29140081/the-human-milk-glycome-as-a-defense-against-infectious-diseases-rationale-challenges-and-opportunities
#11
Kelly M Craft, Steven D Townsend
Each year over 3 million people die from infectious diseases with most of these deaths being poor and young children who live in low- and middle-income countries. Infectious diseases emerge for a multitude of reasons. On the social front, reasons include a breakdown of public health standards, international travel, and immigration (for financial, civil, and social reasons). At the molecular level, the modern rise of infectious diseases is tied to the juxtaposition of drug-resistant pathogens and a lack of new antimicrobials...
November 15, 2017: ACS Infectious Diseases
https://www.readbyqxmd.com/read/29138086/eugenol-derivatives-prospectively-inhibit-l-asparaginase-a-heady-target-protein-of%C3%A2-salmonella-typhimurium
#12
Archana Vimal, Anubhuti Jha, Awanish Kumar
Salmonella typhimurium is the causative agent of severe human infections and mortality throughout the world. Pacing advent of new resistance mechanisms in this microorganism exists, rendering treatment of infectious disease difficult. Ciprofloxacin is no longer considered the first choice of antimicrobial agent due to the emergence of resistance. Therefore, the need for scenario is to find out novel drug target and its potential inhibitor to fight against this pathogen. The present study was undertaken to find out a novel drug target and its inhibitor for improving the current therapeutic methods for treating Salmonella infections...
November 11, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29137487/emergence-of-fosfomycin-resistance-among-isolates-of-escherichia-coli-harboring-extended-spectrum-and-ampc-%C3%AE-lactamases
#13
Aghil Bahramian, Gita Eslami, Ali Hashemi, Ali Tabibi, Mohsen Heidary
Urinary tract infection (UTI) is a common type of infectious disease globally. The aim of this study was to detect the frequency of fosA3 and fosC2 genes in extended-spectrum β-lactamases (ESBL) and blaDHA, blaCMY-2, and blaCMY-42 genes in AmpC β-lactamases-producing isolates of Escherichia coli. In total, 120 isolates of E. coli were collected from three teaching hospitals between March 2014 and February 2015. Antibiotic susceptibility tests were carried out by disk diffusion method. The presence of blaCMY-2, blaCMY-42, blaDHA, fosA3, and fosC2 genes was detected by polymerase chain reaction (PCR) and sequencing...
November 15, 2017: Acta Microbiologica et Immunologica Hungarica
https://www.readbyqxmd.com/read/29135900/ondansetron-prescription-for-home-use-in-a-pediatric-emergency-department
#14
James M Gray, Jaya D Maewal, Scott A Lunos, Ronald A Furnival, Marissa A Hendrickson
OBJECTIVES: Ondansetron has been shown to decrease admission rates and the need for intravenous fluids among pediatric emergency department (ED) patients with acute gastroenteritis, but there is limited evidence regarding its use after ED discharge. This study describes prescribing patterns for ondansetron and assesses the effects of ondansetron home prescription on rate of return. METHODS: Data were gathered from the electronic health record on 2 separate but overlapping groups of patients seen in a pediatric ED from 2012 to 2014...
November 14, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/29134272/cxcl13-as-a-diagnostic-marker-of-neuroborreliosis-and-other-neuroinflammatory-disorders-in-an-unselected-group-of-patients
#15
Judith N Wagner, S Weis, C Kubasta, J Panholzer, T J von Oertzen
BACKGROUND: The C-X-C motif chemokine ligand 13 (CXCL13) and its receptor CXCR5 play an important role in the homing of B-lymphocytes. As a biomarker in the cerebrospinal fluid (CSF), CXCL13 has increasingly been used for the diagnosis of neuroborreliosis (NB). We evaluated the diagnostic and prognostic potential of CXCL13 for NB and other neuroinflammatory diseases in an unselected cohort, paying attention to those patients particularly who might benefit from newly emerging CXCL13-directed therapies...
November 13, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/29132162/what-recent-history-has-taught-us-about-responding-to-emerging-infectious-disease-threats
#16
Catharine I Paules, Robert W Eisinger, Hilary D Marston, Anthony S Fauci
Presidential administrations face any number of unexpected crises during their tenure, and global pandemics are among the most challenging. As of January 2017, one of the authors had served under 5 presidents as the director of the National Institute of Allergy and Infectious Diseases at the National Institutes of Health. During each administration, the government faced unexpected pandemics, ranging from the HIV/AIDS pandemic, which began during the Reagan administration, to the recent Zika outbreak in the Americas, which started during the Obama administration...
November 14, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/29131713/vaccines-we-need-but-don-t-have
#17
Stanley A Plotkin
Vaccinations have had tremendous success in the 20th century. However, in the 21st century, we are facing complex immunological issues in relation to controlling underlying infectious diseases. Therefore, new technologies are needed to develop vaccines against infectious diseases like respiratory syncytial virus, human immunodeficiency virus, and cytomegalovirus. In addition, recent emerging infections have taught us that we must prepare preventative measures in advance using our scientific abilities.
November 13, 2017: Viral Immunology
https://www.readbyqxmd.com/read/29129921/towards-a-genomics-informed-real-time-global-pathogen-surveillance-system
#18
REVIEW
Jennifer L Gardy, Nicholas J Loman
The recent Ebola and Zika epidemics demonstrate the need for the continuous surveillance, rapid diagnosis and real-time tracking of emerging infectious diseases. Fast, affordable sequencing of pathogen genomes - now a staple of the public health microbiology laboratory in well-resourced settings - can affect each of these areas. Coupling genomic diagnostics and epidemiology to innovative digital disease detection platforms raises the possibility of an open, global, digital pathogen surveillance system. When informed by a One Health approach, in which human, animal and environmental health are considered together, such a genomics-based system has profound potential to improve public health in settings lacking robust laboratory capacity...
November 13, 2017: Nature Reviews. Genetics
https://www.readbyqxmd.com/read/29128757/lethal-murine-infection-model-for-human-respiratory-disease-associated-pteropine-orthoreovirus
#19
Yuta Kanai, Takahiro Kawagishi, Minoru Okamoto, Yusuke Sakai, Yoshiharu Matsuura, Takeshi Kobayashi
Pteropine orthoreovirus (PRV) is an emerging bat-borne human pathogen causing severe respiratory illness. To date, however, the evaluation of PRV virulence has largely depended on the limited numbers of clinical cases owing to the lack of animal models. To develop an in vivo model of PRV infection, an inbred C3H mouse strain was infected intranasally with pathogenic PRV strain Miyazaki-Bali/2007. C3H mice suffered severe lung infection with significant body weight reduction and died within 7 days after intranasal infection...
November 9, 2017: Virology
https://www.readbyqxmd.com/read/29126736/synthesis-and-bioactivities-study-of-new-antibacterial-peptide-mimics-the-dialkyl-cationic-amphiphiles
#20
En Zhang, Peng-Yan Bai, De-Yun Cui, Wen-Chao Chu, Yong-Gang Hua, Qin Liu, Hai-Yang Yin, Yong-Jie Zhang, Shangshang Qin, Hong-Min Liu
The emergence of infectious diseases caused by pathogenic bacteria is widespread. Therefore, it is urgently required to enhance the development of novel antimicrobial agents with high antibacterial activity and low cytotoxicity. A series of novel dialkyl cationic amphiphiles bearing two identical length lipophilic alkyl chains and one non-peptidic amide bond were synthesized and tested for antimicrobial activities against both Gram-positive and Gram-negative bacteria. Particular compounds synthesized showed excellent antibacterial activity toward drug-sensitive bacteria such as S...
October 17, 2017: European Journal of Medicinal Chemistry
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