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David P Darrow, Coridon Quinn, Huy T Donguyen, Matthew Hunt, Stephen Haines
INTRODUCTION: External ventricular drains can pose a serious source of morbidity and mortality. Interventions proven to reduce the risk of infections are lacking. Single center studies limit the study of procedures that mitigate infection, but bundled protocols have demonstrated utility. A collaborative EVD registry was designed to facilitate local quality improvement projects to be implemented at any location using standardized data collection instruments through resident collaboration to reduce and study EVD infection and prevention...
March 12, 2018: World Neurosurgery
Anne-Claire Lagrée, Clotilde Rouxel, Maëllys Kevin, Thibaud Dugat, Guillaume Girault, Benoît Durand, Martin Pfeffer, Cornelia Silaghi, Marion Nieder, Henri-Jean Boulouis, Nadia Haddad
BACKGROUND: Anaplasma phagocytophilum is a zoonotic tick-borne intracellular alpha-proteobacterium causing tick-borne fever, which leads to significant economic losses in domestic ruminants in Europe. Its epidemiological cycles are complex and reservoir host species of bovine strains have not yet been identified. Given that little genetic information is available on strains circulating within a defined bovine environment, our objective was to assess the genetic diversity of A. phagocytophilum obtained from the same farms over time...
March 9, 2018: Parasites & Vectors
Fiona Mei Shan Teo, Min Nyo, Anng Anng Wong, Natalie Woon Hui Tan, Mia Tuang Koh, Yoke Fun Chan, Chia Yin Chong, Justin Jang Hann Chu
Hand, foot and mouth disease (HFMD) is a prevalent contagious childhood disease typically associated with fever, oral lesions and limb exanthema. While HFMD is caused by a plethora of serotypes of viruses under the genus Enterovirus within the Picornaviridae family, Coxsackievirus A16 (CV-A16) and Enterovirus 71 (EV-A71) are considered the main etiological agents. In recent years however, other viruses have also been isolated in considerable numbers from infected individuals in many regions, joining the legion commonly associated with HFMD...
March 6, 2018: Scientific Reports
Darren J Wostenberg, Nikki Walker, Karen A Fox, Terry R Spraker, Antoinette J Piaggio, Amy Gilbert
Canine distemper virus (CDV) is a highly contagious pathogen that principally infects wildlife and domestic carnivores. Peridomestic species such as raccoons ( Procyon lotor) experience outbreaks with high mortality. Clinical signs of infection include anorexia, fever, respiratory infection, and neurologic complications. Although not zoonotic, CDV poses a high risk to unvaccinated domestic animals and the conservation of endangered species. During 2013-2016, we opportunistically collected wild and domestic carnivore specimens through a rabies surveillance program in northern Colorado...
March 2, 2018: Journal of Wildlife Diseases
Liu Xiao-Jie, Mao Tie-Bo, Wu Peng, Zhou Rui
OBJECTIVE: To understand the prevalence of Cryptosporidium infection in diarrhea infants under 2 years old in Wuhan City, so as to provide the epidemiological evidence for the prevention and treatment of cryptosporidiosis. METHODS: The fecal samples from infants under 2 years old with diarrhea were collected in Hubei General Hospital and Central South Hospital in Wuhan City, Hubei Province from August 2014 to July 2015. The fecal samples were stored in 2.5% potassium dichromate at 4 ℃ after filtered...
March 14, 2017: Zhongguo Xue Xi Chong Bing Fang Zhi za Zhi, Chinese Journal of Schistosomiasis Control
C B Nandyal, Mithun Sutrave, Vinayak Kurle, Pallavi A Harsoor
To study functional outcome of the endoscopic management of limited attico-antral cholesteatoma in terms of visualization of sac, cholesteatoma disease clearance, ABG closure improvement, preservation of residual anatomy and recurrence of disease. It is a prospective study done during Feb 2016 to March 2017 done on 20 pts with limited attico-antral cholesteatoma with CT confirmation. Endoscopic management of limited attico-antral cholesteatoma with complete removal of sac, infected discharge and granulations along with creation of MRMC Neo surgical ventilating port (joining Anterior & posterior isthmuses) done in cases where residual attic anatomy was present to establish physiological attic ventilation and drainage...
March 2018: Indian Journal of Otolaryngology and Head and Neck Surgery
Masoud Akbari, Kazumi Kimura, Ganchimeg Bayarsaikhan, Daisuke Kimura, Mana Miyakoda, Smriti Juriasingani, Masao Yuda, Rogerio Amino, Katsuyuki Yui
CD8+ T cells are the major effector cells that protect against malaria liver-stage infection, forming clusters around Plasmodium-infected hepatocytes and eliminating parasites after prolonged interaction with these hepatocytes. We aimed to investigate roles of specific and non-specific CD8+ T cells in cluster formation and protective immunity. To this end, we used Plasmodium berghei ANKA expressing ovalbumin, as well as CD8+ T cells from transgenic mice expressing a T cell receptor specific for ovalbumin (OT-I) and CD8+ T cells specific for an unrelated antigen, respectively...
February 5, 2018: Infection and Immunity
Sally Grier, David Evans, Andy Gibson, Teh Li Chin, Margaret Stoddart, Michele Kok, Richard Campbell, Val Kenny, Alasdair MacGowan
Plain English summary: In 2015 a microbiology team in Bristol joined a European research project that aims to develop new antibiotics to fight drug resistant infections. The microbiology team were convinced of the benefits of patient and public involvement, but had found it difficult to find former patients to work with on earlier microbiology research. This paper describes how the team overcame this challenge to successfully recruit a PPI panel to develop PPI within the European project...
2018: Research Involvement and Engagement
Thuy-Nhien Nguyen, Lorenz von Seidlein, Tuong-Vy Nguyen, Phuc-Nhi Truong, Son Do Hung, Huong-Thu Pham, Tam-Uyen Nguyen, Thanh Dong Le, Van Hue Dao, Mavuto Mukaka, Nicholas Pj Day, Nicholas J White, Arjen M Dondorp, Guy E Thwaites, Tran Tinh Hien
BACKGROUND: A substantial proportion of Plasmodium species infections are asymptomatic with densities too low to be detectable with standard diagnostic techniques. The importance of such asymptomatic plasmodium infections in malaria transmission is probably related to their duration and density. To explore the duration of asymptomatic plasmodium infections and changes in parasite densities over time, a cohort of participants who were infected with Plasmodium parasites was observed over a 2-year follow-up period...
February 1, 2018: Lancet Infectious Diseases
Viktor Dombrádi, Barnabás Margitai, Csaba Dózsa, Orsolya Karola Bárdos-Csenteri, János Sándor, Tibor Gáll, Sándor Gődény
OBJECTIVE: Quantitative studies have shown the various benefits for having accreditation in hospitals. However, neither of these explored the general conditions before applying for an accreditation. To close this gap, this study aimed to investigate the possible association between joining an accreditation programme with various hospital characteristics. DESIGN: A cross-sectional study was implemented using the databases of the 2013 Hungarian hospital survey and of the Hungarian State Treasury...
February 1, 2018: BMJ Open
Yinjie Niu, Lili Zhao, Baihan Liu, Jingli Liu, Fan Yang, Haichang Yin, Hong Huo, Hongyan Chen
BACKGROUND: Goose parvovirus (GPV) causes acute enteritis, hepatitis, myocarditis and high morbidity and mortality in geese and ducks. GPV H strain was isolated from a Heilongjiang goose farm where the geese were showing signs of hemorrhage in the brain, liver, and intestinal tract. In this study, we explored the genetic diversity among waterfowl parvovirus isolates and the pathological characteristics of GPV H in Shaoxing ducklings. METHODS: The complete capsid protein (VP) and non-structural (NS) sequences of the isolated H strain were sequenced, and phylogenetic trees of VP and NS were constructed in MEGA version 5...
February 1, 2018: Virology Journal
Olivia Senard, Stéphane Blanot, Gregory Jouvion, Véronica Rodriguez-Nava, Olivier Lortholary, Olivier Join-Lambert, Julie Toubiana
Nocardiosis is a rare cause of infection that usually affects immunocompromised adult patients and might not be recognized by pediatricians. We report a fatal case of disseminated nocardiosis in a previously healthy child initially admitted for an abdominal mass with suspicion of a renal malignant tumor. The patient, originating from Mali without any medical history, displayed abdominal pain with progressive altered general status. Laboratory and imaging findings revealed lymphocytic meningitis and disseminated abscesses in the brain and the cerebellum and a large number of cystic lesions of the kidney...
January 31, 2018: Pediatrics
Mohammad Hasan Khadem Ansari, Yousef Rasmi, Laya Abbasi
BACKGROUND: Infections caused by Hepatitis B are one of the world health's most serious problems. According to assessments, nearly 500,000 to 1.2 million people die each year due to chronic hepatitis, cirrhosis of the liver and hepatocellular carcinoma. Hepatitis B is one of the diseases which can be transferred through blood and its products. Clinical importance of genotypes of hepatitis B virus and their relations with mutations are well known. AIM: Since epidemiological data resulting from determining genotypes and sub-genotypes of hepatitis B can help a lot in defining a vaccination plan, antiretroviral therapy, detection and prevention of diseases, genotypes of this virus in hepatitis B patients were evaluated in West Azarbaijan province...
December 15, 2017: Open Access Macedonian Journal of Medical Sciences
Poojan Shrestha, Mila Shakya, Maxine Caws, Surendra Shrestha, Bibek Karki, Shreejana Shrestha, Dan Bahadur Karki, Bhagwan Maharjan, Bhawana Shrestha, Amit Arjyal, Abhilasha Karkey, Krishna G Prajapati, Buddha Basnyat
BACKGROUND: There is a high risk of occupational exposure to tuberculosis among healthcare workers in endemic countries. Regular screening for tuberculosis among healthcare workers is not carried out in Nepal. Infection control measures are also not routinely implemented. The aim of this study was to determine the prevalence of active tuberculosis among staff/students at Patan Hospital. METHODS: Participants were given a self-administered questionnaire and invited to undergo chest radiography...
January 1, 2018: Journal of Nepal Health Research Council
Shuang Liang, Punsisi Ratnayake, Craig Keinath, Lihui Jia, Robert Wolfe, Ahinsa Ranaweera, David P Weliky
Human immunodeficiency virus (HIV) is membrane-enveloped and an initial infection step is joining/fusion of viral and cell membranes. This step is catalyzed by gp41 which is a single-pass integral viral membrane protein. The protein contains a ~170-residue ectodomain located outside the virus that is important for fusion, and includes the fusion peptide (FP), N-helix, loop, C-helix, and viral membrane-proximal external region (MPER). The virion initially has non-covalent complexes between three gp41 ectodomains and three gp120 proteins...
January 18, 2018: Biochemistry
Julian A Marin-Acevedo, Aixa E Soyano, Bhagirathbhai Dholaria, Keith L Knutson, Yanyan Lou
Malignant cells have the capacity to rapidly grow exponentially and spread in part by suppressing, evading, and exploiting the host immune system. Immunotherapy is a form of oncologic treatment directed towards enhancing the host immune system against cancer. In recent years, manipulation of immune checkpoints or pathways has emerged as an important and effective form of immunotherapy. Agents that target cytotoxic T lymphocyte-associated molecule-4 (CTLA-4), programmed cell death receptor-1 (PD-1), and programmed cell death ligand-1 (PD-L1) are the most widely studied and recognized...
January 12, 2018: Journal of Hematology & Oncology
Jeanne M Marrazzo, Julia C Dombrowski, Kenneth H Mayer
Jeanne M. Marrazzo and colleagues join PLOS Medicine's Collection on the prevention, diagnosis, and treatment of STIs with a Perspective on HIV research imperatives in our time of effective viral suppression and pre-exposure prophylaxis.
January 2018: PLoS Medicine
Andrew Zloza
As infections and cancer are two of the most common maladies affecting human beings, a concerted effort is needed to better understand their potential interactions and to further explore their use in microbial-based cancer treatments. Studies focusing on the interaction between pathogens and cancer began over 4000 years ago, but therapeutic application of pathogens has often been bypassed as other cancer therapies have gained wider interest. To many, the field of microbial-based cancer treatment may feel antiquated and already sufficiently explored...
January 8, 2018: Journal for Immunotherapy of Cancer
Ayesheshem Ademe Tegegne, Fiona Braka, Meseret Eshetu Shebeshi, Aron Kassahun Aregay, Berhane Beyene, Amare Mengistu Mersha, Mohammed Ademe, Abdulahi Muhyadin, Dadi Jima, Abyot Bekele Wyessa
BACKGROUND: Ethiopia joined the Global Polio Eradication Initiative (GPEI) in 1996, and by the end of December 2001 circulation of indigenous Wild Polio Virus (WPV) had been interrupted. Nonetheless, the country experienced multiple importations during 2004-2008, and in 2013. We characterize the 2013 outbreak investigations and response activities, and document lessons learned. METHOD: The data were pulled from different field investigation reports and from the national surveillance database for Acute Flaccid Paralysis (AFP)...
January 5, 2018: BMC Infectious Diseases
Quanxin Long, Ran Yan, Jieli Hu, Dawei Cai, Bidisha Mitra, Elena S Kim, Alexander Marchetti, Hu Zhang, Soujuan Wang, Yuanjie Liu, Ailong Huang, Haitao Guo
Hepadnavirus covalently closed circular (ccc) DNA is the bona fide viral transcription template, which plays a pivotal role in viral infection and persistence. Upon infection, the non-replicative cccDNA is converted from the incoming and de novo synthesized viral genomic relaxed circular (rc) DNA, presumably through employment of the host cell's DNA repair mechanisms in the nucleus. The conversion of rcDNA into cccDNA requires preparation of the extremities at the nick/gap regions of rcDNA for strand ligation...
December 2017: PLoS Pathogens
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