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https://www.readbyqxmd.com/read/29327957/unusual-outbreak-of-fatal-clostridiosis-in-a-group-of-captive-brown-pelicans-pelecanus-occidentalis
#1
Imke Lueders, Carsten Ludwig, Johanna Kasberg, Christoph Georg Baums, Kerstin Klimke, Martin B Dorner, Dana Ströse, Volker Schmidt
Fatal clostridial infections and clostridial toxicoses are common in birds. Most fatalities are associated with toxin production and progress rapidly, often within 24 hours of infection. We describe an unusual and protracted course of disease in 6 captive brown pelicans ( Pelecanus occidentalis), which was believed to result from toxicosis by toxovar A produced by a mixed infection with Clostridium sordellii and Clostridium perfringens. Although the first death in the group occurred 3 days after signs of illness were documented, the remaining birds died over a 38-day period despite aggressive antibiotic and supportive therapy...
December 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/29319247/infection-associated-secondary-hemophagocytic-lymphohistiocytosis-in-sepsis-syndromes-a-tip-of-an-iceberg
#2
Arun Agarwal, Aakanksha Agarwal
Background: Hemophagocytic lymphohistiocytosis (HLH) is a rare, underdiagnosed, fatal and devastating hyperinflammatory syndrome that has gained increasing recognition over the past decade. Patients with HLH present with clinical and laboratory evidence of uncontrolled inflammation. Delay in diagnosis and management inevitably leads to a rapidly progressive and fatal course. In this case series, we present 7 cases of secondary HLH (sHLH) in adults with their presentation, course, and outcomes...
October 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/29311309/signaling-by-the-epstein-barr-virus-lmp1-protein-induces-potent-cytotoxic-cd4-and-cd8-t-cell-responses
#3
Il-Kyu Choi, Zhe Wang, Qiang Ke, Min Hong, Yu Qian, Xiujuan Zhao, Yuting Liu, Hye-Jung Kim, Jerome Ritz, Harvey Cantor, Klaus Rajewsky, Kai W Wucherpfennig, Baochun Zhang
The B-lymphotropic Epstein-Barr virus (EBV), pandemic in humans, is rapidly controlled on initial infection by T cell surveillance; thereafter, the virus establishes a lifelong latent infection in the host. If surveillance fails, fatal lymphoproliferation and lymphomagenesis ensue. The initial T cell response consists of predominantly CD8+ cytotoxic T cells and a smaller expansion of CD4+ cells. A major approach to treating EBV-associated lymphomas is adoptive transfer of autologous or allogeneic T cells that are stimulated/expanded on EBV-transformed B cells...
January 8, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29285995/the-challenges-of-treating-aspergillus-abdominal-aneurysm-after-hematopoietic-cell-transplant-rapid-voriconazole-metabolizer
#4
Justin A Wasko, Celalettin Ustun, Mark Birkenbach, Rumi Faizer, Jaime S Green
Mycotic aneurysms are a fatal manifestation of disseminated fungal infections in immunocompromised hosts. We present a patient with an Aspergillus mycotic aneurysm after hematopoietic cell transplant. Due to CYP2C19 rapid metabolizer phenotype (*1/*17), therapeutic levels of voriconazole were unobtainable. Successful therapy was achieved with posaconazole salvage therapy and early, aggressive surgery. This case demonstrates the consequences of voriconazole rapid metabolism and the potential impact of genetic variants...
January 1, 2017: Journal of Oncology Pharmacy Practice
https://www.readbyqxmd.com/read/29279280/the-path-towards-effective-antivirals-against-rabies
#5
Dirk Jochmans, Johan Neyts
Rabies virus remains an important burden of disease claiming an estimated 60,000 lives each year, mainly children, and having a huge economical and societal cost. Post-exposure prophylaxis (PEP) is highly effective, however in patients that present with neurological symptoms the case-fatality ratio is extremely high (>99%). During the last decades several attempts to identify potent and effective antivirals were made. Only a few of these demonstrated improvement in clinical signs in animal studies and none of the trials in humans showed significant efficacy...
December 23, 2017: Vaccine
https://www.readbyqxmd.com/read/29248504/rapid-emergence-of-colistin-resistance-and-its-impact-on-mortality-in-healthcare-associated-infections
#6
Mehtap Aydin, Önder Ergönül, Alpay Azap, Hüseyin Bilgin, Güle Aydın, Sema Alp Çavuş, Yusuf Ziya Demiroğlu, Hikmet Eda Çalışkan, Osman Memikoğlu, Şirin Menekşe, Şafak Kaya, Nazlım Aktuğ Demir, İlkay Karaoğlan, Seniha Başaran, Çiğdem Hatipoğlu, Şebnem Erdinç, Emel Yılmaz, Ayhanım Tümtürk, Yasemin Tezer, Hamiyet Demirkaya, Şule Eren Çakar, Şiran Keske, SudaTekin, Cem Yardımcı, Çağla Karakoç, Pınar Ergen, Özlem Azap, Lütfiye Mülazımoğlu, Onur Ural, Füsun Can, Halis Akalın
We describe the emergence of resistance and predictors of fatality for 1556 cases of healthcare-associated Gram-negative bloodstream infections in 2014 and 2015. The colistin resistance rate in Klebsiella pneumoniae was 16.1%, compared with 6% in 2013. 660 (42.4%) cases were fatal. The highest fatality rate was among patients with Acinetobacter baumannii bacteremia (58%), followed by Pseudomonas aeruginosa (45%), Klebsiella pneumoniae (41%), Enterobacter cloacae (32%), and Escherichia coli (28%). In multivariate analysis, MIC for carbapenem (OR:1...
December 14, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/29248323/staphylococcal-scalded-skin-syndrome-an-uncommon-symptomatology-revealing-an-immune-deficiency
#7
H Ajmi, N Jemmali, S Mabrouk, S Hassayoun, M Ben-Ali, M-R Barbouche, M Mokni, S Abroug
Primary immune deficiencies associated with hyper-IgE syndrome are rare diseases with clinical features dominated by recurring cutaneous and visceral bacterial infections, particularly infections due to Staphylococcus species. Most of these infections are associated with milder inflammation compared to normal. We report a primary immune deficiency associated with a hyper-IgE syndrome revealed by a staphylococcal scalded skin syndrome in a 5-year-old girl. The patient presented with a severe staphylococcal infection with extensive skin lesions and disseminated intravascular coagulation...
December 13, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/29246504/a-recombinant-vsv-vectored-mers-cov-vaccine-induces-neutralizing-antibody-and-t-cell-responses-in-rhesus-monkeys-after-single-dose-immunization
#8
Renqiang Liu, Jinliang Wang, Yu Shao, Xijun Wang, Huilei Zhang, Lei Shuai, Jinying Ge, Zhiyuan Wen, Zhigao Bu
Middle East respiratory syndrome coronavirus (MERS-CoV) has been a highly threatening zoonotic pathogen since its outbreak in 2012. Similar to SARS-CoV, MERS-CoV belongs to the coronavirus family and can induce severe respiratory symptoms in humans, with an average case fatality rate of 35% according to the World Health Organization. Spike (S) protein of MERS-CoV is immunogenic and can induce neutralizing antibodies, thus is a potential major target for vaccine development. Here we constructed a chimeric virus based on the vesicular stomatitis virus (VSV) in which the G gene was replaced by MERS-CoV S gene (VSVΔG-MERS)...
December 12, 2017: Antiviral Research
https://www.readbyqxmd.com/read/29237469/bat-rabies-surveillance-in-france-first-report-of-unusual-mortality-among-serotine-bats
#9
Evelyne Picard-Meyer, Alexandre Servat, Marine Wasniewski, Matthieu Gaillard, Christophe Borel, Florence Cliquet
BACKGROUND: Rabies is a fatal viral encephalitic disease that is caused by lyssaviruses which can affect all mammals, including human and bats. In Europe, bat rabies cases are attributed to five different lyssavirus species, the majority of rabid bats being attributed to European bat 1 lyssavirus (EBLV-1), circulating mainly in serotine bats (Eptesicus serotinus). In France, rabies in bats is under surveillance since 1989, with 77 positive cases reported between 1989 and 2016. CASE PRESENTATION: In the frame of the bat rabies surveillance, an unusual mortality of serotine bats was reported in 2009 in a village in North-East France...
December 13, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29228122/tennessee-s-in-state-vulnerability-assessment-for-a-rapid-dissemination-of-hiv-or-hcv-infection-event-utilizing-data-about-the-opioid-epidemic
#10
Michael Rickles, Peter F Rebeiro, Lindsey Sizemore, Paul Juarez, Mitchell Mutter, Carolyn Wester, Melissa McPheeters
Background: Knowing which factors contribute to county-level vulnerability to an HIV/Hepatitis C (HCV) outbreak, and which counties are most vulnerable, guide public health and clinical interventions. We therefore examined the impact of locally available indicators related to the opioid epidemic on prior national models of HCV/HIV outbreak vulnerability. Methods: Tennessee's 95 counties were the study sample. Predictors from 2012 and 2013 were used, mirroring prior methodology from the US Centers for Disease Control and Prevention (CDC)...
December 7, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29201180/rapid-visual-detection-of-binary-toxin-producing-clostridium-difficile-by-loop-mediated-isothermal-amplification
#11
Lan Yu, Huan Li, Xiangna Zhao, Xuesong Wang, Xiao Wei, Weishi Lin, Puyuan Li, Lihong Cui, Jing Yuan
The binary toxin Clostridium difficile transferase (CDT) is frequently observed in C. difficile strains and is associated with an increased severity of C. difficile infection. CDT-producing C. difficile infections cause higher fatality rates than infections with CDT negative isolates. Thus, the rapid and accurate identification of a CDT positive C. difficile infection is critical for effective treatment. The present study demonstrates how loop-mediated isothermal amplification (LAMP) can be used to detect CDT-producing C...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29197712/radiotherapy-induced-reactivation-of-neurotrophic-human-herpes-viruses-overview-and-management
#12
REVIEW
Marigdalia K Ramirez-Fort, Jianying Zeng, Amir Feily, Luis A Ramirez-Pacheco, Joseph M Jenrette, David L Mayhew, Talal Syed, S Lewis Cooper, Craig Linden, Witney S Graybill, Lars E French, Christopher S Lange
PURPOSE: Infection by Human Herpes Viruses (HHV) types 1-3, are prevalent throughout the world. It is known that radiotherapy can reactivate HHVs, but it is unclear how and to what extent reactivations can interact with or affect radiotherapeutic efficacy, patient outcomes and mortality risk. Herein, we aim to summarize what is known about Herpes Simplex Virus (HSV)-1,2 and Varicella Zoster Virus (VZV) pathophysiology as it relates to tumor biology, radiotherapy, chemo-radiotherapy, diagnosis and management so as to optimize cancer treatment in the setting of active HHV infection...
November 22, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/29188158/fulminant-hepatic-failure-and-fatal-cerebral-edema-following-clostridium-perfringens-bacteremia-case-report-and-review-of-literature
#13
Alice Shen, Gabriel O Ologun, Robert Behm
Clostridium perfringens (CP) bacteremia is a rare but rapidly fatal infection. Only 36 cases of CP bacteremia with gas containing liver abscesses on image studies have been reported in the literature since 1990. In this report, we describe a 65-year-old diabetic male with CP bacteremia which progressed into fulminant hepatic failure with subsequent fatal cerebral edema.
September 26, 2017: Curēus
https://www.readbyqxmd.com/read/29181418/asymptomatic-cardiovascular-syphilis-with-aortic-regurgitation-requiring-surgical-repair-in-an-hiv-infected-patient
#14
Daniel S Graciaa, Marina B Mosunjac, Kimberly A Workowski, Russell R Kempker
A 47-year-old man with HIV infection presented 10 years after initial secondary syphilis diagnosis and treatment for routine follow-up. His HIV was well controlled on antiretroviral therapy. Rapid plasma reagin was 1:1, and TP-PA was reactive. Physical examination revealed a wide pulse pressure, a systolic murmur, and an early diastolic decrescendo murmur. Echocardiogram revealed moderate to severe aortic regurgitation, and subsequent computed tomography angiogram showed a 6.8-cm fusiform aneurysm of the proximal ascending aorta...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/29172792/combination-therapy-for-extensively-drug-resistant-gram-negative-bacteria
#15
Ilias Karaiskos, Anastasia Antoniadou, Helen Giamarellou
The ongoing crisis and emergence of extensively-drug resistant (XDR) gram-negative pathogens in the nosocomial setting is worrisome. The limited armamentarium in combination with the increasing resistance rates of last resort antibiotics has led clinicians to re-exploit existing antibiotic classes. Areas covered: Current state of evidence concerning the administration of monotherapy versus combination therapy for the treatment of XDR gram-negative microorganism as well as salvage treatment are presented. Herein, the current knowledge concerning in vitro studies, animal models and clinical studies are discussed in detail...
December 2017: Expert Review of Anti-infective Therapy
https://www.readbyqxmd.com/read/29158604/antiviral-cd8-t-cells-induce-zika-virus-associated-paralysis-in-mice
#16
Kellie A Jurado, Laura J Yockey, Patrick W Wong, Sarah Lee, Anita J Huttner, Akiko Iwasaki
Zika virus (ZIKV) is an emerging, mosquito-borne RNA virus. The rapid spread of ZIKV within the Americas has unveiled microcephaly 1 and Guillain-Barré syndrome 2,3 as ZIKV-associated neurological complications. Recent reports have also indicated other neurological manifestations to be associated with ZIKV, including myelitis 4 , meningoencephalitis 5 and fatal encephalitis 6 . Here, we investigate the neuropathogenesis of ZIKV infection in type I interferon receptor IFNAR knockout (Ifnar1 -/- ) mice, an infection model that exhibits high viral burden within the central nervous system...
November 20, 2017: Nature Microbiology
https://www.readbyqxmd.com/read/29158047/-fatal-case-of-enterovirus-a71%C3%A2-hand-foot-and-mouth-disease-infection
#17
V Corvest, C Archimbaud, A-S L'Honneur, C Henquell, H Peigue-Lafeuille, M Decobert, A Mirand
Hand, foot, and mouth disease associated with enterovirus (EV) infections is a common pediatric pathology that is usually considered as benign. However, neurological complications of varying severity, sometimes fatal, are possible, particularly when EV-A71 is involved. Several Asian countries are regularly affected by large-scale epidemics of EV infections with substantial morbidity and mortality, where early screening and appropriate therapeutic management are a public health challenge. In 2016, Europe experienced an epidemic of unusual magnitude, associated with increasing cases of severe neurological complications in Spain and France, mainly affecting children...
November 17, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/29152586/genomic-transcriptomic-and-phenotypic-analyses-of-neisseria-meningitidis-isolates-from-disease-patients-and-their-household-contacts
#18
Xiaoyun Ren, David A Eccles, Gabrielle A Greig, Jane Clapham, Nicole E Wheeler, Stinus Lindgreen, Paul P Gardner, Joanna K MacKichan
Neisseria meningitidis (meningococcus) can cause meningococcal disease, a rapidly progressing and often fatal disease that can occur in previously healthy children. Meningococci are found in healthy carriers, where they reside in the nasopharynx as commensals. While carriage is relatively common, invasive disease, associated with hypervirulent strains, is a comparatively rare event. The basis of increased virulence in some strains is not well understood. New Zealand suffered a protracted meningococcal disease epidemic, from 1991 to 2008...
November 2017: MSystems
https://www.readbyqxmd.com/read/29147593/rapidly-progressive-disseminated-sporotrichosis-as-the-first-presentation-of-hiv-infection-in-a-patient-with-a-very-low-cd4-cell-count
#19
Isis Cristine Morávia Ribeiro de Oliveira-Esteves, Guilherme Almeida Rosa da Silva, Walter de Araujo Eyer-Silva, Rodrigo Panno Basílio-de-Oliveira, Luciana Ferreira de Araujo, Carlos José Martins, Rogério Neves-Motta, Marcelo Costa Velho Mendes de Azevedo, Dario José Hart Pontes Signorini, Jorge Francisco da Cunha Pinto, Lívia Machado Moura, Rafael Jacyntho Laterça, Diogo Raphael Garcia de Oliveira Pereira, Isabela Vieira do Lago, Fernando Raphael de Almeida Ferry
Sporotrichosis is a human and animal disease caused by species of the Sporothrix schenckii complex. It is classically acquired through traumatic inoculation of fungal elements. Most frequently, sporotrichosis presents as a fixed cutaneous or as a lymphocutaneous form. A much smaller number of cases occur as cutaneous disseminated and disseminated forms. These cases require immediate diagnosis and management to reduce morbidity and mortality. We present the case of a 34-year-old male patient in whom the first presentation of HIV infection was a rapidly progressive sporotrichosis with multiple cutaneous lesions, a high fungal burden in tissues, and pulmonary involvement...
2017: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/29132792/-neuromeningeal-cryptococcosis-in-patients-infected-with-hiv-at-agadir-regional-hospital-souss-massa-morocco
#20
S Chadli, M Aghrouch, N Taqarort, M Malmoussi, Z Ouagari, F Moustaoui, M Bourouache, S Oulkheir
INTRODUCTION: Neuromeningeal cryptococcosis (NMC) is a severe and fatal opportunistic infection. Lethality is frequent in the absence of treatment, especially in the presence of HIV co-infection. OBJECTIVE: To determine the prevalence, epidemiological, clinical, biological and therapeutic aspects as well as the evolution of NMC for patients infected with HIV. PATIENTS AND METHODS: This is a retrospective study of 40 cases of neuromeningeal cryptococcosis diagnosed in HIV-infected patients...
November 10, 2017: Journal de Mycologie Médicale
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