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https://www.readbyqxmd.com/read/27924936/genomic-duplication-and-translocation-of-reactivation-transactivator-and-bzip-homolog-genes-is-a-conserved-event-in-alcelaphine-herpesvirus-1
#1
Françoise Myster, Steven J van Beurden, Océane Sorel, Nicolás M Suárez, Alain Vanderplasschen, Andrew J Davison, Benjamin G Dewals
Alcelaphine herpesvirus 1 (AlHV-1) is a gammaherpesvirus carried asymptomatically by wildebeest. Upon cross-species transmission, AlHV-1 induces malignant catarrhal fever (MCF), a fatal lymphoproliferative disease of ruminants, including cattle. The strain C500 has been cloned as an infectious, pathogenic bacterial artificial chromosome (BAC) that is used to study MCF. Although AlHV-1 infection can be established in cell culture, multiple passages in vitro cause a loss of virulence associated with rearrangements of the viral genome...
December 7, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27917434/what-factors-determine-the-need-for-lumbar-puncture-in-patients-with-fever-and-headache
#2
Ki Joong Kim, Jun Hwi Cho, Joong Bum Moon, Myoung Cheol Shin, Taek Geun Ohk, Hui Young Lee, Chan Woo Park
INTRODUCTION: We performed this study to search for clinical features and laboratory parameters that could facilitate the process of selection of patients who should receive lumbar punctures among those presenting with headache and fever. METHODS: We selected all patients aged ≥ 16 years who presented to and received lumbar puncture in the emergency department (ED) of Kangwon National University Hospital, South Korea, between 2011 and 2013. Patients who received a lumbar puncture were divided into two groups - patients diagnosed with viral meningitis and those that were not...
December 5, 2016: Singapore Medical Journal
https://www.readbyqxmd.com/read/27916572/high-resolution-melting-hrm-for-genotyping-bovine-ephemeral-fever-virus-befv
#3
Oran Erster, Rotem Stram, Shopia Menasherow, Marisol Rubistein-Giuni, Binyamin Sharir, Evgeni Kchinich, Yehuda Stram
In recent years there have been several major outbreaks of bovine ephemeral disease in the Middle East, including Israel. Such occurrences raise the need for quick identification of the viruses responsible for the outbreaks, in order to rapidly identify the entry of viruses that do not belong to the Middle-East BEFV lineage. This challenge was met by the development of a high-resolution method (HRM) assay. The assay is based on the viral G gene sequence and generation of an algorithm that calculates and evaluates the GC content of various fragments...
December 1, 2016: Virus Research
https://www.readbyqxmd.com/read/27915438/variations-in-clinical-presentation-and-anatomical-distribution-of-gross-lesions-of-african-swine-fever-in-domestic-pigs-in-the-southern-highlands-of-tanzania-a-field-experience
#4
Maulilio John Kipanyula, Solomon Wilson Nong'ona
African swine fever is a contagious viral disease responsible for up to 100% mortality among domestic pigs. A longitudinal study was carried out to determine the clinical presentation and anatomical distribution of gross lesions in affected pigs in Mbeya region, Tanzania during the 2010 to 2014 outbreaks. Data were collected during clinical and postmortem examination by field veterinarians and using a structured questionnaire. A total of 118 respondents (100%) showed awareness about African swine fever. During previous outbreaks, the mortality rate was almost 100%, while in 2014 it was estimated to be less than 50%...
December 3, 2016: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/27915109/decreased-myeloid-dendritic-cells-indicate-a-poor-prognosis-of-severe-fever-with-thrombocytopenia-syndrome-patients
#5
Wenjing Zhang, Mengmeng Li, Shue Xiong, Hua Wang, Yan Xiong, Mingyue Li, Mengji Lu, DongliangYang, Cheng Peng, Xin Zheng
OBJECTIVES: Severe fever with thrombocytopenia syndrome (SFTS) is a newly emerging infectious disease caused by a novel Bunyavirus in which host immune system suppression is thought to be crucial in the development of disease. The study is designed to study the frequencies and activation status of dendritic cells(DCs) at different stages of SFTS and its association with the disease severity. METHODS: All confirmed 115 SFTS patients were recruited from the Wuhan Union Hospital in 2015 and routine laboratory parameters were collected...
November 30, 2016: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/27910264/vaccination-against-h9n2-avian-influenza-virus-reduces-bronchus-associated-lymphoid-tissue-formation-in-cynomolgus-macaques-after-intranasal-virus-challenge-infection
#6
Misako Nakayama, Hiroichi Ozaki, Yasushi Itoh, Kosuke Soda, Hirohito Ishigaki, Masatoshi Okamatsu, Yoshihiro Sakoda, Chun-Ho Park, Hideaki Tsuchiya, Hiroshi Kida, Kazumasa Ogasawara
H9N2 avian influenza virus causes sporadic human infection. Since humans do not possess acquired immunity specific to this virus, we examined the pathogenicity of an H9N2 virus isolated from a human and then analyzed protective effects of a vaccine in cynomolgus macaques. After intranasal challenge with A/Hong Kong/1073/1999 (H9N2) (HK1073) isolated from a human patient, viruses were isolated from nasal and tracheal swabs in unvaccinated macaques with mild fever and body weight loss. A formalin-inactivated H9N2 whole particle vaccine derived from our virus library was subcutaneously inoculated to macaques...
December 2016: Pathology International
https://www.readbyqxmd.com/read/27908797/molecular-detection-and-characterization-of-respiratory-syncytial-virus-b-genotypes-circulating-in-pakistani-children
#7
Uzma Bashir, Nadia Nisar, Nayab Mahmood, Muhammad Masroor Alam, Hajra Sadia, Syed Sohail Zahoor Zaidi
Respiratory syncytial virus (RSV) is the major cause of acute lower respiratory tract infections in young children, but very little is known about its epidemiology and circulating genotypes in Pakistan. This study analyzed the epidemiological and molecular characteristics of RSV B genotypes in Pakistani children below 5years with acute respiratory tract infections (ARIs) during three consecutive winter seasons from 2010 to 2013. A total of 1941 samples were analyzed for RSV infection by real time PCR and 24% (472/1941) samples were found positive out of which 22...
November 28, 2016: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/27907970/-epidemiology-etiology-and-clinical-picture-of-enteroviral-meningitis-in-children-in-south-moravia
#8
Adriana Braunová, Petra Rainetová, Lenka Krbková, Iva Čapovová, Lenka Klapačová, Václav Musil, Martin Musílek, Jana Bednářová
OBJECTIVES: Enteroviruses (EVs) are the most common cause of aseptic viral meningitis. In some cases, they can cause severe meningoencephalitis and acute flaccid paralysis - an association with some virulent serotypes. The objectives were to describe the epidemiological situation of EV meningitis in children in South Moravia, to elucidate the etiology including the incidence of virulent serotypes and to evaluate the clinical presentation. MATERIAL AND METHODS: A total of 88 children with EV meningitis were prospectively evaluated...
September 2016: Klinická Mikrobiologie a Infekc̆ní Lékar̆ství
https://www.readbyqxmd.com/read/27905621/-parechovirus-as-etiologic-agent-of-meningitis-and-or-sepsis-like-illness-in-infants
#9
Valentina Gutiérrez, Constanza Martínez-Valdebenito, Luisa Montecinos, Romina Alarcón, Constanza Gárate, Marcela Ferrés
INTRODUCTION: Human parechovirus (HPeV) belongs to the Picornaviridae family and has been described in viral meningoencephalitis and sepsis like illness in infants. Until now, 16 genotypes have been recognized, the most common are HPEV 1, 2 and 3; type 3 is most severe. AIMS: To estimate the frequency of HPEV etiology in viral meningoencephalitis and sepsis in infants and characterize clinical and molecular aspects of infection. METHODS: Between October 2013 and March 2015 we collected CSF samples, plasma, nasopharyngeal swabs and/or stools of patients younger than two years with suspected sepsis and/or viral meningitis...
August 2016: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
https://www.readbyqxmd.com/read/27902331/the-plasma-virome-of-febrile-adult-kenyans-shows-frequent-parvovirus-b19-infections-and-a-novel-arbovirus-kadipiro-virus
#10
Carolyne Ngoi, Juliana Siqueira, Linlin Li, Xutao Deng, Peter Mugo, Susan Graham, Matt Price, Eduard Sanders, Eric Delwart
Viral nucleic acids present in the plasma of 498 Kenyan adults with unexplained fever were characterized by metagenomics analysis of 51 sample pools. The highest to lowest fraction of plasma pools was positive for parvovirus B19 (75%), pegivirus C (GBV-C) (67%), alpha anellovirus (59%), gamma anellovirus (55%), beta anellovirus (41%), Dengue virus genotype 2 (DENV-2) (16%), HIV-1 (6%), HHV-6 (6%), HBV (4%), rotavirus (4%), norovirus (4%), rhinovirus C (2%), Merkel cell polyomavirus (MCPyV)(2%) and Kadipiro virus (2%)...
October 24, 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27899121/meta-analysis-of-the-clinical-and-laboratory-parameters-of-sfts-patients-in-china
#11
Miao-Miao Liu, Xiao-Ying Lei, Xue-Jie Yu
BACKGROUND: Severe fever with thrombocytopenia syndrome (SFTS) is an emerging hemorrhagic fever in East Asia, which is caused by a novel bunyavirus-SFTSV. Many studies have reported the clinical characters of SFTS patients, but the reports were not consistent and a systematic summary of clinical manifestations and laboratory parameters are not available. METHOD: A comprehensive literature research of Web of Science, PubMed, Wan Fang Data, and Chinese National Knowledge Infrastructure databases was conducted on articles which have described the clinical characters of SFTS patients...
November 29, 2016: Virology Journal
https://www.readbyqxmd.com/read/27899013/in-vitro-antiviral-activity-of-ribavirin-against-severe-fever-with-thrombocytopenia-syndrome-virus
#12
Myung Jin Lee, Kye-Hyung Kim, Jongyoun Yi, Su Jin Choi, Pyoeng Gyun Choe, Wan Beom Park, Nam Joong Kim, Myoung-Don Oh
Background/Aims: Severe fever with thrombocytopenia syndrome (SFTS) is an emerging infectious disease caused by severe fever with thrombocytopenia syndrome virus (SFTSV), a novel bunyavirus. As yet, there is no effective antiviral therapy for SFTS. Ribavirin is a broad-spectrum antiviral agent, which has been tried for treatment of SFTS. In this study, antiviral activity of ribavirin against SFTSV has been investigated. Methods: Vero cell-grown SFTSV strain Gangwon/Korea/2012 was treated with ribavirin at various concentrations...
November 30, 2016: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/27895275/sequence-independent-single-primer-amplification-next-generation-sequencing-of-hantaan-virus-cell-culture-based-isolates
#13
Dong Hyun Song, Won-Keun Kim, Se Hun Gu, Daesang Lee, Jeong-Ah Kim, Jin Sun No, Seung-Ho Lee, Michael R Wiley, Gustavo Palacios, Jin-Won Song, Seong Tae Jeong
Hantaan virus (HTNV), identified in the striped field mouse (Apodemus agrarius), belongs to the hantavirus genus of the Bunyaviridae family and contains tripartite RNA genomes, small (S), medium (M), and large (L) segments. HTNV is a major causative for hemorrhagic fever with renal syndrome (HFRS) with fatality rates ranging from 1% to 15% in the Republic of Korea (ROK) and China. Defining of HTNV whole-genome sequences and isolation of the infectious particle play a critical role in the characterization and preventive and therapeutic strategies of hantavirus outbreaks...
November 28, 2016: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27894305/identification-of-molecular-determinants-of-cell-culture-growth-characteristics-of-enterovirus-71
#14
Pinn Tsin Isabel Yee, Kuan Onn Tan, Iekhsan Othman, Chit Laa Poh
BACKGROUND: Hand, foot and mouth disease is caused by Enterovirus 71 (EV-A71) and Coxsackieviruses. EV-A71 infection is associated with high fever, rashes and ulcers but more severe symptoms such as cardiopulmonary failure and death have been reported. The lack of vaccines highlighted the urgency of developing preventive agents against EV-A71. The molecular determinants of virulent phenotypes of EV-A71 is unclear. It remains to be investigated if specific molecular determinants would affect the cell culture growth characteristics of the EV-A71 fatal strain in Rhabdomyosarcoma (RD) cells...
November 28, 2016: Virology Journal
https://www.readbyqxmd.com/read/27893666/four-weeks-of-paritaprevir-ritonavir-ombitasvir-plus-dasabuvir-encountering-dengue-fever-resulted-in-sustained-virological-response-in-an-hcv-patient-a-case-report
#15
Chung-Feng Huang, Tyng-Yuan Jang, Po-Liang Lu, Ming-Lung Yu
BACKGROUND: Direct antiviral agent (DAA) has been the standard of care for patients with hepatitis C virus (HCV) infection. Twelve weeks of paritaprevir/ritonavir/ombitasvir plus dasabuvir (PROD) with or without ribavirin has shown to have a sustained virological response at post-treatment 12 weeks (SVR12) rate of >90% in HCV genotype 1 (HCV-1) patients. METHODS: We report a HCV-1b patient who received only 25 days of PROD treatment. RESULTS: The patient early terminated treatment due to dengue fever but eventually achieved SVR12...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27889712/serum-procalcitonin-for-predicting-significant-infections-and-mortality-in-pediatric-oncology
#16
Vinod Gunasekaran, Nita Radhakrishnan, Veronique Dinand, Anupam Sachdeva
OBJECTIVE: To evaluate the role of serum procalcitonin (PCT) level at admission in predicting significant infections and deaths among children on chemotherapy presenting with fever. METHODS: Children with clinically significant (CSI) and microbiologically documented (MDI) infections were identified using set definitions. Association of PCT with CSI, MDI and mortality was analyzed. RESULTS: We evaluated 821 febrile episodes in 316 children...
November 5, 2016: Indian Pediatrics
https://www.readbyqxmd.com/read/27889614/competitive-replication-kinetics-and-pathogenicity-in-pigs-co-infected-with-historical-and-newly-invading-classical-swine-fever-viruses
#17
Yu-Liang Huang, Ming-Chung Deng, Kuo-Jung Tsai, Hsin-Meng Liu, Chin-Cheng Huang, Fun-In Wang, Chia-Yi Chang
Classical swine fever (CSF), an economically important and highly contagious disease of pigs, is caused by classical swine fever virus (CSFV). In Taiwan, CSFVs from field outbreaks belong to two distinct genotypes. The historical genotype 3.4 dominated from the 1920s to 1996, and since 1996, the newly invading genotype 2.1 has dominated. To explain the phenomenon of this virus shift in the field, representative viruses belonging to genotypes 2.1 and 3.4 were either inoculated alone (single infection) or co-inoculated (co-infection), both in vivo and in vitro, to compare the virus replication and pathogenesis...
November 23, 2016: Virus Research
https://www.readbyqxmd.com/read/27885563/quasispecies-composition-and-diversity-do-not-reveal-any-predictors-for-chronic-classical-swine-fever-virus-infection
#18
Maria Jenckel, Sandra Blome, Martin Beer, Dirk Höper
Classical swine fever (CSF) can run acute, chronic, and prenatal courses in both domestic pigs and wild boar. Although chronic infections are rare events, their epidemiological impact is very high due to the long-term shedding of virus. So far, little is known about the factors that influence disease course and outcome from either the host or virus's perspective. To elucidate the viral determinants, we analyzed the role of the viral populations for the development of chronic CSF virus (CSFV) infections. Three different animal trials that had led to both chronic and acute infections were chosen for a detailed analysis by deep sequencing...
November 24, 2016: Archives of Virology
https://www.readbyqxmd.com/read/27885562/respiratory-syncytial-virus-and-influenza-are-the-key-viral-pathogens-in-children-2%C3%A2-years-hospitalized-with-bronchiolitis-and-pneumonia-in-islamabad-pakistan
#19
Uzma Bashir, Nadia Nisar, Yasir Arshad, Muhammad Masroor Alam, Asiya Ashraf, Hajra Sadia, Birjees Mazher Kazi, Syed Sohail Zahoor Zaidi
Pneumonia remains a leading cause of morbidity and mortality in developing countries. Comprehensive surveillance data are needed to review the prevention and control strategies. We conducted active surveillance of acute lower respiratory infections among children aged <2 years hospitalized at two hospitals of Islamabad, Pakistan. Viral etiology was determined using real-time PCR on respiratory specimens collected during March 2011-April 2012. The overall mean age was 7.83 ± 5.25 months while no statistical difference between age or sex distribution of patients with positive and negative viral etiology (p > 0...
November 24, 2016: Archives of Virology
https://www.readbyqxmd.com/read/27883373/clinical-impact-of-mixed-respiratory-viral-infection-in-children-with-adenoviral-infection
#20
Hyun Jun Lee, Young Eun Seo, Seung Beom Han, Dae Chul Jeong, Jin Han Kang
BACKGROUND: Although adenovirus (ADV) infection occurs steadily all year round in Korea and the identification of respiratory viral coinfections has been increasing following the introduction of multiplex real-time polymerase chain reaction tests, the clinical impact of viral coinfection in children with ADV infection has rarely been reported. MATERIALS AND METHODS: Medical records of children diagnosed with ADV infection were retrospectively reviewed. The enrolled children were divided into two groups based on the identified respiratory viruses: ADV group and coinfection group...
November 21, 2016: Infection & Chemotherapy
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