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https://www.readbyqxmd.com/read/28650987/accuracy-of-zika-virus-disease-case-definition-during-simultaneous-dengue-and-chikungunya-epidemics
#1
José Ueleres Braga, Clarisse Bressan, Ana Paula Razal Dalvi, Guilherme Amaral Calvet, Regina Paiva Daumas, Nadia Rodrigues, Mayumi Wakimoto, Rita Maria Ribeiro Nogueira, Karin Nielsen-Saines, Carlos Brito, Ana Maria Bispo de Filippis, Patrícia Brasil
BACKGROUND: Zika is a new disease in the American continent and its surveillance is of utmost importance, especially because of its ability to cause neurological manifestations as Guillain-Barré syndrome and serious congenital malformations through vertical transmission. The detection of suspected cases by the surveillance system depends on the case definition adopted. As the laboratory diagnosis of Zika infection still relies on the use of expensive and complex molecular techniques with low sensitivity due to a narrow window of detection, most suspected cases are not confirmed by laboratory tests, mainly reserved for pregnant women and newborns...
2017: PloS One
https://www.readbyqxmd.com/read/28650978/a-study-of-ticks-and-tick-borne-livestock-pathogens-in-pakistan
#2
Shahid Karim, Khemraj Budachetri, Nabanita Mukherjee, Jaclyn Williams, Asma Kausar, Muhammad Jawadul Hassan, Steven Adamson, Scot E Dowd, Dmitry Apanskevich, Abdullah Arijo, Zia Uddin Sindhu, Muhammad Azam Kakar, Raja Muhammad Dilpazir Khan, Shafiq Ullah, Muhammad Sohail Sajid, Abid Ali, Zafar Iqbal
BACKGROUND: As obligate blood-feeding arthropods, ticks transmit pathogens to humans and domestic animals more often than other arthropod vectors. Livestock farming plays a vital role in the rural economy of Pakistan, and tick infestation causes serious problems with it. However, research on tick species diversity and tick-borne pathogens has rarely been conducted in Pakistan. In this study, a systematic investigation of the tick species infesting livestock in different ecological regions of Pakistan was conducted to determine the microbiome and pathobiome diversity in the indigenous ticks...
June 26, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28650973/interferon-signaling-in-peromyscus-leucopus-confers-a-potent-and-specific-restriction-to-vector-borne-flaviviruses
#3
Adaeze O Izuogu, Kristin L McNally, Stephen E Harris, Brian H Youseff, John B Presloid, Christopher Burlak, Jason Munshi-South, Sonja M Best, R Travis Taylor
Tick-borne flaviviruses (TBFVs), including Powassan virus and tick-borne encephalitis virus cause encephalitis or hemorrhagic fevers in humans with case-fatality rates ranging from 1-30%. Despite severe disease in humans, TBFV infection of natural rodent hosts has little noticeable effect. Currently, the basis for resistance to disease is not known. We hypothesize that the coevolution of flaviviruses with their respective hosts has shaped the evolution of potent antiviral factors that suppress virus replication and protect the host from lethal infection...
2017: PloS One
https://www.readbyqxmd.com/read/28650708/genetic-polymorphisms-of-tumor-necrosis-factor-alpha-and-susceptibility-to-dengue-virus-infection-in-a-mexican-population
#4
Marina Sánchez-Leyva, Jorge Guillermo Sánchez-Zazueta, Juan Fidel Osuna-Ramos, Horacio Rendón-Aguilar, Rafael Félix-Espinoza, Denisse Stephania Becerra-Loaiza, Dulce Carolina Sánchez-García, José Geovanni Romero-Quintana, Hipolito Castillo Ureta, Ismael Velarde-Rodríguez, Jesús Salvador Velarde-Félix
To evaluate the association of the -308 and -238 tumor necrosis factor alpha (TNF-α) gene polymorphisms with clinical manifestations of dengue and TNF-α serum levels in a northwestern Mexican population. The study populations included dengue fever (DF) and dengue hemorrhagic fever (DHF) patients, and a group of healthy controls (HCs) without history of dengue. Polymerase chain reaction-restriction fragment length polymorphism and Enzyme-Linked Immunosorbent Assay were performed to determine genotypes and serum concentration of TNF-α, respectively...
June 26, 2017: Viral Immunology
https://www.readbyqxmd.com/read/28650593/hhv-6-in-liver-transplantation-a-literature-review
#5
REVIEW
Tuan L Phan, Irmeli Lautenschlager, Raymund R Razonable, Flor M Munoz
Human herpesvirus 6 (HHV-6A and HHV-6B) can cause primary infection or reactivate from latency in liver transplant recipients, which can result in a variety of clinical syndromes, including fever, hepatitis, encephalitis, and higher rates of graft dysfunction as well as indirect effects including increased risks of mortality, CMV disease, hepatitis C progression and greater fibrosis scores. Although HHV-6 infection is currently diagnosed by quantifying viral DNA in plasma or blood, biopsy to demonstrate histopathologic effects of HHV-6 remains the gold standard for diagnosis of end-organ disease...
June 26, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28650129/in-vitro-efficacy-and-in-silico-analysis-of-cefixime-ofloxacin-combination-for-salmonella-typhi-from-bloodstream-infection
#6
Yamuna Devi Bakthavatchalam, Thirumal Kumar D, Iftikhar Aslam Tayubi, Baby Abirami S, Priyanka Babu, Elakkiya Munusamy, Bhuvaneswari Thukkaram, Raji Ravi, George Priya Doss C, Balaji Veeraraghavan
AIMS: Recently, the cefixime-ofloxacin combination is approved by drug controller general of India (DCGI) to treat typhoid fever. We sought to evaluate the antimicrobial activity of cefixime-ofloxacin combination against S. Typhi. METHODS AND RESULTS: 283 non-duplicate S. Typhi isolates collected during 2012 to 2014 were included in this study. Minimum inhibitory concentration (MIC) of cefixime and ofloxacin was determined by using broth microdilution method. Combinational testing was performed by using checkerboard assay...
June 26, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28648850/complete-genome-analysis-of-dengue-virus-type-3-isolated-from-the-2013-dengue-outbreak-in-yunnan-china
#7
Xiaodan Wang, Dehong Ma, Xinwei Huang, Lihua Li, Duo Li, Yujiao Zhao, Lijuan Qiu, Yue Pan, Junying Chen, Juemin Xi, Xiyun Shan, Qiangming Sun
In the past few decades, dengue has spread rapidly and is an emerging disease in China. An unexpected dengue outbreak occurred in Xishuangbanna, Yunnan, China, resulting in 1331 patients in 2013. In order to obtain the complete genome information and perform mutation and evolutionary analysis of causative agent related to this largest outbreak of dengue fever. The viruses were isolated by cell culture and evaluated by genome sequence analysis. Phylogenetic trees were then constructed by Neighbor-Joining methods (MEGA6...
June 22, 2017: Virus Research
https://www.readbyqxmd.com/read/28648813/rapid-spread-of-an-ongoing-outbreak-of-zika-virus-disease-in-pregnant-women-in-a-mexican-hospital
#8
Elvira Garza-González, Soraya Mendoza-Olazarán, Raúl R Campos, Ricardo Téllez-Marroquín, Donato Saldívar-Rodríguez, Juan A Soria-López, Abel Santos, Samantha Flores-Treviño, Adrián Camacho-Ortiz
In the first nine weeks of implementation of a Zika Virus Preparedness Plan in a Mexican Public Hospital, we cared for 221 pregnant women with any signal or symptom suggesting ZIKV infection and 99 (44.8%) patients were found to be positive for ZIKV. The median age of patients was 25.3 years (range 13-49). Symptoms in PCR-positive patients were rash (91.4%) followed by headache (53.1%), myalgia (46.9%), arthralgia (45.7%), pruritus (35.8%), retroocular pain (29.6%), conjunctivitis (21%), and fever (21%). The women's epidemiologic exposure history indicates local transmission and a community outbreak...
June 22, 2017: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28648773/the-burden-of-tick-borne-diseases-in-the-altai-region-of-russia
#9
V G Dedkov, E G Simonova, O V Beshlebova, M V Safonova, O A Stukolova, E V Verigina, G V Savinov, I P Karaseva, E A Blinova, V M Granitov, I V Arsenjeva, G A Shipulin
This article presents the results of a comprehensive survey of the burden of tick-borne infectious diseases (TBIDs) in the Altai region of Russia. Official data for TBID incidence were analyzed and 201 samples from patients with suspected TBID were studied. Furthermore, questing ticks and ticks recovered from humans were examined to estimate prevalence of TBID-causative agents. The Altai region was determined to have a heightened risk for TBIDs in Russia. The most epidemiologically significant tick-borne illness in this area is spotted fever group rickettsiosis, while nationally in Russia, the leading TBID is Lyme borreliosis...
June 19, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28648674/hemodynamic-changes-in-patients-with-influenza-a-after-propacetamol-infusion-in-the-emergency-department
#10
Hyun Jong Lee, Young Ju Suh, Ah Jin Kim, Seung Baik Han, Areum Durey
OBJECTIVES: Recently, there has been an emerging clinical data suggesting that intravenous propacetamol may cause iatrogenic hypotension. The primary objective of this study was to evaluate hemodynamic changes after propacetamol infusion in the emergency department (ED) with the patients of influenza A. Secondary objective was to assess the incidence of propacetamol-induced significant hypotension and to evaluate factors associated with this adverse effect by comparing two groups of patients with or without a significant reduction in blood pressure (BP)...
June 21, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28647172/infection-related-microcephaly-after-the-2015-and-2016-zika-virus-outbreaks-in-brazil-a-surveillance-based-analysis
#11
Wanderson Kleber de Oliveira, Giovanny Vinícius Araújo de França, Eduardo Hage Carmo, Bruce Bartholow Duncan, Ricardo de Souza Kuchenbecker, Maria Inês Schmidt
BACKGROUND: On Nov 11, 2015, the Brazilian Ministry of Health declared a Public Health Emergency of National Concern in response to an increased number of microcephaly cases, possibly related to previous Zika virus outbreaks. We describe the course of the dual epidemics of the Zika virus infection during pregnancy and microcephaly in Brazil up to Nov 12, 2016, the first anniversary of this declaration. METHODS: We used secondary data for Zika virus and microcephaly cases obtained through the Brazilian Ministry of Health's surveillance systems from Jan 1, 2015, to Nov 12, 2016...
June 21, 2017: Lancet
https://www.readbyqxmd.com/read/28647130/fever-induced-paroxysmal-weakness-and-encephalopathy-a-new-phenotype-of-atp1a3-mutation
#12
Sho T Yano, Kenneth Silver, Richard Young, Suzanne D DeBrosse, Roseànne S Ebel, Kathryn J Swoboda, Gyula Acsadi
BACKGROUND: We identified a group of patients with ATP1A3 mutations at residue 756 who display a new phenotype, distinct from alternating hemiplegia of childhood, rapid-onset dystonia-parkinsonism, and cerebellar ataxia, areflexia, pes cavus, optic atrophy, sensorineural hearing loss syndromes. METHODS: Four patients with c.2267G>A (R756H) mutations from two families and two patients with c.2267G>T (R756L) mutations from one family are described and compared with the previously reported patients with mutations resulting in R756H and R756C protein variants...
April 29, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28646615/definition-of-healthcare-associated-influenza-a-review-and-results-from-an-international-survey
#13
Elodie Munier-Marion, Thomas Bénet, Philippe Vanhems
AIM: To describe definitions of healthcare-associated influenza (HAI) in recent literature and in hospitals participating in a survey of Society for Healthcare Epidemiology of America (SHEA) Research Network (SRN) members. METHOD: A review with PubMed search was undertaken to retrieve articles published between 2008 and 2016, focusing on the subject headings "influenza, human" and "cross infection". Definitions of clinical influenza-like illness (ILI) and HAI were identified...
June 24, 2017: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/28645623/identification-of-a-coumarin-based-antihistamine-as-an-anti-filoviral-entry-inhibitor
#14
Han Cheng, Adam Schafer, Veronica Soloveva, Dima Gharaibeh, Tara Kenny, Cary Retterer, Rouzbeh Zamani, Sina Bavari, Norton P Peet, Lijun Rong
Filoviruses, consisting of Ebola virus, Marburg virus and Cuevavirus, cause severe hemorrhagic fevers in humans with high mortality rates up to 90%. Currently, there is no approved vaccine or therapy available for the prevention and treatment of filovirus infection in humans. The recent 2013-2015 West African Ebola epidemic underscores the urgency to develop antiviral therapeutics against these infectious diseases. Our previous study showed that GPCR antagonists, particularly histamine receptor antagonists (antihistamines) inhibit Ebola and Marburg virus entry...
June 20, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28645238/new-world-arenavirus-biology
#15
Nicolás Sarute, Susan R Ross
Hemorrhagic fevers caused by viruses were identified in the late 1950s in South America. These viruses have existed in their hosts, the New World rodents, for millions of years. Their emergence as infectious agents in humans coincided with changes in the environment and farming practices that caused explosions in their host rodent populations. Zoonosis into humans likely occurs because the pathogenic New World arenaviruses use human transferrin receptor 1 to enter cells. The mortality rate after infection with these viruses is high, but the mechanism by which disease is induced is still not clear...
June 23, 2017: Annual Review of Virology
https://www.readbyqxmd.com/read/28644549/a-retrospective-analysis-of-the-symptoms-and-course-of-dengue-infection-during-pregnancy
#16
Kavita Agarwal, Sunita Malik, Pratima Mittal
OBJECTIVE: To assess outcomes among pregnant women diagnosed with dengue infection. METHODS: In a retrospective study, the medical records of all pregnant women with dengue infection admitted to Safdarjung Hospital, New Delhi, India, from July to December 2015 were reviewed. Maternal and fetal outcomes were compared by pregnancy length and stage of disease at diagnosis. RESULTS: Overall, 62 pregnant women with dengue infection were identified...
June 23, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28643313/-anastomotic-leakage-after-laparoscopic-assisted-radical-right-hemicolectomy-reason-analysis-and-management
#17
Xin Wu, Guole Lin, Huizhong Qiu, Yi Xiao, Bin Wu
OBJECTIVE: To analyze the clinical features, possible reasons and management of anastomotic leakage after laparoscopic-assisted radical right hemicolectomy. METHODS: Clinical data of 546 patients undergoing laparoscopic-assisted radical right hemicolectomy in Peking Union Medical College Hospital from October 2010 to September 2016 were retrospectively analyzed. The occurrence of anastomotic leakage and its countermeasures were evaluated. RESULTS: Among 546 patients, 8(1...
June 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28642818/nivolumab-as-salvage-treatment-in-a-patient-with-hiv-related-relapsed-refractory-hodgkin-lymphoma-and-liver-failure-with-encephalopathy
#18
Jose D Sandoval-Sus, Francis Mogollon-Duffo, Ankita Patel, Nathan Visweshwar, Damian A Laber, Richard Kim, Michael V Jagal
BACKGROUND: We report the first case to our knowledge of a patient with relapsed/refractory classical hodgkin lymphoma and liver failure with encephalopathy along with human immunodeficiency virus/acquired immunodeficiency syndrome infection, successfully treated with nivolumab without major side effects and encouraging prolonged disease control. CASE PRESENTATION: In December 2015, at the time of the patient's progression from his Hodgkin lymphoma after fourth line treatment, he developed persistent fevers, abdominal distension, jaundice and worsening of his liver function tests...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28640917/human-hantavirus-infection-elicits-pronounced-redistribution-of-mononuclear-phagocytes-in-peripheral-blood-and-airways
#19
Saskia Scholz, Faezzah Baharom, Gregory Rankin, Kimia T Maleki, Shawon Gupta, Sindhu Vangeti, Jamshid Pourazar, Andrea Discacciati, Jonas Höijer, Matteo Bottai, Niklas K Björkström, Johan Rasmuson, Magnus Evander, Anders Blomberg, Hans-Gustaf Ljunggren, Jonas Klingström, Clas Ahlm, Anna Smed-Sörensen
Hantaviruses infect humans via inhalation of virus-contaminated rodent excreta. Infection can cause severe disease with up to 40% mortality depending on the viral strain. The virus primarily targets the vascular endothelium without direct cytopathic effects. Instead, exaggerated immune responses may inadvertently contribute to disease development. Mononuclear phagocytes (MNPs), including monocytes and dendritic cells (DCs), orchestrate the adaptive immune responses. Since hantaviruses are transmitted via inhalation, studying immunological events in the airways is of importance to understand the processes leading to immunopathogenesis...
June 22, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28640809/development-of-elisas-for-diagnosis-of-acute-typhoid-fever-in-nigerian-children
#20
Jiin Felgner, Aarti Jain, Rie Nakajima, Li Liang, Algis Jasinskas, Eduardo Gotuzzo, Joseph M Vinetz, Fabio Miyajima, Munir Pirmohamed, Fatimah Hassan-Hanga, Dominic Umoru, Binta Wudil Jibir, Safiya Gambo, Kudirat Olateju, Philip L Felgner, Stephen Obaro, D Huw Davies
Improved serodiagnostic tests for typhoid fever (TF) are needed for surveillance, to facilitate patient management, curb antibiotic resistance, and inform public health programs. To address this need, IgA, IgM and IgG ELISAs using Salmonella enterica serovar Typhi (S. Typhi) lipopolysaccharide (LPS) and hemolysin E (t1477) protein were conducted on 86 Nigerian pediatric TF and 29 non-typhoidal Salmonella (NTS) cases, 178 culture-negative febrile cases, 28 "other" (i.e., non-Salmonella) pediatric infections, and 48 healthy Nigerian children...
June 22, 2017: PLoS Neglected Tropical Diseases
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