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https://www.readbyqxmd.com/read/28213954/human-herpes-virus-6-infection-in-pediatric-organ-transplant-patients
#1
Elisa Ylinen, Silja Lehtinen, Timo Jahnukainen, Teemu Karlsson, Raisa Loginov, Laura Mannonen, Irmeli Lautenschlager, Hannu Jalanko
Transplant patients need lifelong immunosuppressive medication, but this reduces their defense mechanisms, making them prone to viral infections and reactivations. We aimed to clarify the prevalence and clinical manifestations of the human herpes virus 6 (HHV-6) infection in children after pediatric solid organ transplants. Clinical findings and viral loads were compared between primary HHV-6 infections and reactivations. The study comprised 47 kidney, 25 liver, and 12 heart transplant patients who underwent surgery from 2009 to 2014...
February 18, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28202026/an-indirect-enzyme-linked-immunosorbent-assay-for-the-identification-of-antibodies-to-senecavirus-a-in-swine
#2
Cheryl M T Dvorak, Zeynep Akkutay-Yoldar, Suzanne R Stone, Steven J P Tousignant, Fabio A Vannucci, Michael P Murtaugh
BACKGROUND: Senecavirus A (SVA), a member of the family Picornaviridae, genus Senecavirus, is a recently identified single-stranded RNA virus closely related to members of the Cardiovirus genus. SVA was originally identified as a cell culture contaminant and was not associated with disease until 2007 when it was first observed in pigs with Idiopathic Vesicular Disease (IVD). Vesicular disease is sporadically observed in swine, is not debilitating, but is significant due to its resemblance to foreign animal diseases, such as foot-and-mouth disease (FMD), whose presence would be economically devastating to the United States...
February 15, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28198551/prevalence-and-clinical-profile-of-human-bocavirus-in-children-with-acute-gastroenteritis-in-chengdu-west-china-2012-2013
#3
Tao Zhou, Yuhang Chen, Jiayi Chen, Pengwei Hu, Tianli Zheng, Xin Xu, Xiaofang Pei
Viral acute gastroenteritis (AGE) is a major cause of mortality in childhood and leads to hospitalization in developing countries. Human bocavirus (HBoV) is a newly described virus associated with gastroenteritis. However, little is known about the clinical and epidemiological profile of human bocavirus (HBoV) in pediatric population in Chengdu, China. Between January 2012 and December 2013, 346 fecal samples from children admitted to hospital with acute gastroenteritis were tested for the presence of HBoV as well as other gastroenteritis viruses...
February 15, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28178907/investigation-of-agid-and-two-commercial-elisas-for-the-detection-of-bovine-viral-diarrhea-virus-specific-antibodies-in-sheep-serum
#4
Caitlin A Evans, Sasha R Lanyon, Michael P Reichel
Effective control and the eventual eradication of Bovine viral diarrhea virus (BVDV) from cattle populations depend on the accurate identification of infected animals. Although typically a disease agent of cattle, BVDV is known to infect a wide variety of nonbovine species, including sheep. However, validation of serologic tests in these nonbovine species, particularly sheep, is lacking. We analyzed 99 sheep sera (57 samples from Pestivirus-naive sheep, and 42 samples from BVDV-inoculated sheep) in order to investigate 3 serologic tests: the agarose gel immunodiffusion (AGID) and 2 commercial enzyme-linked immunosorbent assays (ELISAs) for detection of BVDV antibodies...
January 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28177797/development-and-validation-of-a-quantitative-real-time-pcr-assay-for-sapovirus-in-under-five-year-old-children
#5
Massimiliano Bergallo, Ilaria Galliano, Paola Montanari, Martina Rosa Brusin, Serena Finotti, Giulia Paderi, Clara Gabiano
Gastroenteritis is a common disease in children, characterized by diarrhea, vomiting, abdominal pain, and fever. Sapovirus (SaV) is a causative agent of acute gastroenteritis although it causes milder illness than rotavirus and norovirus. There is high variability in analytical performance of quantitative PCR-based assays amongst clinical laboratories. This study develops a RT real-time PCR method to detect SaV in fecal specimens collected from under-five-year-old children with acute gastroenteritis. 15 out of 137 (10...
December 2, 2016: Canadian Journal of Microbiology
https://www.readbyqxmd.com/read/28176615/identification-by-next-generation-sequencing-of-aichivirus-b-in-a-calf-with-enterocolitis-and-neurologic-signs
#6
Ana S D Moreira, Sarah M Raabis, Melissa E Graham, Jennifer M Dreyfus, Samuel D Sibley, Jennifer A Godhardt-Cooper, Kathy L Toohey-Kurth, Tony L Goldberg, Simon F Peek
An 11-d-old Holstein bull calf was presented to the Veterinary Medical Teaching Hospital at the University of Wisconsin-Madison because of a 4-d history of diarrhea and persistent low-grade fever. Initial diagnosis was enteritis caused by Cryptosporidium and rotavirus. During hospitalization, the calf became stuporous and was only responsive to noxious stimuli, with hypotonia of all 4 limbs, tail, head, and neck. A cerebrospinal fluid analysis revealed xanthochromia, with marked lymphocytic pleocytosis, which was suggestive of viral meningitis and/or encephalitis...
January 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28166712/experimental-acute-infection-of-alpacas-with-bovine-viral-diarrhea-virus-1-subgenotype-b-alters-peripheral-blood-and-galt-leukocyte-subsets
#7
Christina L Topliff, Abdulrahman A Alkheraif, Charles A Kuszynski, William C Davis, David J Steffen, Jack A Schmitz, Kent M Eskridge, Bryan Charleston, Jamie N Henningson, Clayton L Kelling
Bovine viral diarrhea virus (BVDV) is a pathogen in cattle and alpacas ( Vicugna pacos), causing acute and persistent BVDV infections. We characterized the effect of acute BVDV infection on the immune system of alpacas by determining lymphocyte subpopulations in peripheral blood and gut-associated lymphoid tissues (GALT) as well as serum interferon levels. Alpacas were experimentally infected with BVDV-1b (strain CO-06). Peripheral blood leukocytes were isolated at 0, 3, 6, and 9 d postinfection (dpi), and leukocytes of GALT at 9 dpi, and evaluated using flow cytometry...
January 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28162224/corrigendum-to-development-and-validation-of-an-elisa-for-quantitation-of-bovine-viral-diarrhea-virus-antigen-in-the-critical-stages-of-vaccine-production-j-virol-methods-162-1-2-2009-170-178
#8
A Pecora, M S Perez Aguirreburualde, Agustin Ostachuk, D Rodriguez, C Seki, M S Levy, D Bochoeyer, M J Dus Santos, A Wigdorovitz
No abstract text is available yet for this article.
April 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28158186/a-high-throughput-phenotypic-screen-identifies-clofazimine-as-a-potential-treatment-for-cryptosporidiosis
#9
Melissa S Love, Federico C Beasley, Rajiv S Jumani, Timothy M Wright, Arnab K Chatterjee, Christopher D Huston, Peter G Schultz, Case W McNamara
Cryptosporidiosis has emerged as a leading cause of non-viral diarrhea in children under five years of age in the developing world, yet the current standard of care to treat Cryptosporidium infections, nitazoxanide, demonstrates limited and immune-dependent efficacy. Given the lack of treatments with universal efficacy, drug discovery efforts against cryptosporidiosis are necessary to find therapeutics more efficacious than the standard of care. To date, cryptosporidiosis drug discovery efforts have been limited to a few targeted mechanisms in the parasite and whole cell phenotypic screens against small, focused collections of compounds...
February 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28153057/unusual-presentation-of-a-severely-ill-patient-having-severe-fever-with-thrombocytopenia-syndrome-a-case-report
#10
Masahiko Kaneko, Masaki Maruta, Hisaharu Shikata, Kengo Asou, Hiroto Shinomiya, Tadaki Suzuki, Hideki Hasegawa, Masayuki Shimojima, Masayuki Saijo
BACKGROUND: Severe fever with thrombocytopenia syndrome is an emerging infectious disease caused by a novel phlebovirus belonging to the family Bunyaviridate. Emergence of encephalitis/encephalopathy during severe fever with thrombocytopenia syndrome progression has been identified as a major risk factor associated with a poor prognosis. Here we report the case of a severely ill patient with severe fever with thrombocytopenia syndrome virus-associated encephalitis/encephalopathy characterized by a lesion of the splenium, which resolved later...
February 3, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28151843/pseudomonas-aeruginosa-associated-diarrheal-diseases-in-children
#11
Chih-Hsien Chuang, Rajendra Prasad Janapatla, Yi-Hsin Wang, Hsin-Ju Chang, Yhu-Chering Huang, Tzou-Yien Lin, Cheng-Hsun Chiu
BACKGROUND: The gastrointestinal tract is not the common infection site of Pseudomonas aeruginosa. The role of P. aeruginosa as a causative agent for diarrhea in children without pre-existing disease is controversial. METHODS: From 2003 to 2012 we reviewed the records of 259 diarrheal patients less than 5 years of age whose stool culture grew P. aeruginosa. Virulence phenotypes of bacterial isolates were determined in vitro, including cytotoxicity, penetration and adherence to epithelial cells...
January 31, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28127668/a-newly-developed-bvdv-1-rt-qpcr-taqman-assay-based-on-italian-isolates-evaluation-as-a-diagnostic-tool
#12
Roberto Zoccola, Maurizio Mazzei, Maria Luisa Carrozza, Emanuele Ricci, Mario Forzan, Federica Pizzurro, Monica Giammarioli, Patrizia Bandecchi, Francesco Tolari
A single-step TaqMan® RT-qPCR was developed for the detection of bovine viral diarrhea virus type 1 (BVDV-1), an important pathogen of cattle worldwide. The assay was based on conserved 5'UTR sequences of Italian BVDV-1 isolates. In order to establish a diagnostic protocol which simplifies sample collection and processing, the assay was tested on a variety of biological specimens collected from persistently infected calves. The samples analyzed included PBMCs, plasma, dry blood, ear notch and hair bulb. Time and costs required for the analysis of each type of specimen were compared...
January 26, 2017: Folia Microbiologica
https://www.readbyqxmd.com/read/28127144/a-nodular-ulcerative-form-of-secondary-syphilis-in-aids
#13
Ofelya Gevorgyan, Benjamin D Owen, Arvind Balavenkataraman, Mitchell R Weinstein
An uncommon variant in the pre-AIDS era, lues maligna is a nodular-ulcerative form of secondary syphilis. We present a case of a 41-year-old man with HIV infection who developed fever, chills, nausea, vomiting, right upper quadrant abdominal pain, weight loss, watery diarrhea, and a painless, nonpruritic rash. He had diffuse nodular-ulcerative lesions in various stages of development. He was found to have a CD4 count of 101 cells/mm(3) (22%), an HIV viral load of 2,735,060 copies/mL, and a positive rapid plasma reagin at 1:64...
January 2017: Proceedings of the Baylor University Medical Center
https://www.readbyqxmd.com/read/28118832/in-vitro-screening-for-antiviral-activity-of-turkish-plants-revealing-methanolic-extract-of-rindera-lanata-var-lanata-active-against-human-rotavirus
#14
Andrea Civra, Rachele Francese, Davide Sinato, Manuela Donalisio, Valeria Cagno, Patrizia Rubiolo, Ramazan Ceylan, Ahmet Uysal, Gokhan Zengin, David Lembo
BACKGROUND: Human rotavirus (HRoV) is the leading cause of severe gastroenteritis in infants and children under the age of five years. No specific antiviral drug is available for HRoV infections and the treatment of viral diarrhea is mainly based on rehydration and zinc treatment. In this study, we explored medicinal plants endemic to Turkey flora as a source of anti-HRoV compunds. METHODS: We performed an antiviral screening on Ballota macrodonta, Salvia cryptantha and Rindera lanata extracts by focus reduction assay...
January 24, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28117718/novel-approach-for-isolation-and-identification-of-porcine-epidemic-diarrhea-virus-pedv-strain-nj-using-porcine-intestinal-epithelial-cells
#15
Wen Shi, Shuo Jia, Haiyuan Zhao, Jiyuan Yin, Xiaona Wang, Meiling Yu, Sunting Ma, Yang Wu, Ying Chen, Wenlu Fan, Yigang Xu, Yijing Li
Porcine epidemic diarrhea virus (PEDV), which is the causative agent of porcine epidemic diarrhea in China and other countries, is responsible for serious economic losses in the pork industry. Inactivated PEDV vaccine plays a key role in controlling the prevalence of PEDV. However, consistently low viral titers are obtained during the propagation of PEDV in vitro; this represents a challenge to molecular analyses of the virus and vaccine development. In this study, we successfully isolated a PEDV isolate (strain NJ) from clinical samples collected during a recent outbreak of diarrhea in piglets in China, using porcine intestinal epithelial cells (IEC)...
January 21, 2017: Viruses
https://www.readbyqxmd.com/read/28114867/cecal-infarction-in-neonatal-calves
#16
John M Adaska, Robert B Moeller, Patricia C Blanchard, Sharif S Aly
Cecal infarction is an uncommon lesion in calves that results in localized peritonitis and, on occasion, perforation with secondary diffuse peritonitis and death. This lesion in calves has not been described previously. We reviewed the postmortem cases of cecal infarction in dairy calves ≤30 d of age that had been submitted over the course of 5 y to the Tulare branch of the California Animal Health and Food Safety Laboratory System. The area of cecal infarction and the associated lesion margins were examined histologically...
January 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28111144/evaluation-of-reproductive-protection-against-bovine-viral-diarrhea-virus-and-bovine-herpesvirus-1-afforded-by-annual-revaccination-with-modified-live-viral-or-combination-modified-live-killed-viral-vaccines-after-primary-vaccination-with-modified-live-viral
#17
Paul H Walz, M Daniel Givens, Soren P Rodning, Kay P Riddell, Bruce W Brodersen, Daniel Scruggs, Thomas Short, Dale Grotelueschen
The objective of this study was to compare reproductive protection in cattle against bovine viral diarrhea virus (BVDV) and bovine herpesvirus 1 (BoHV-1) provided by annual revaccination with multivalent modified-live viral (MLV) vaccine or multivalent combination viral (CV) vaccine containing temperature-sensitive modified-live BoHV-1 and killed BVDV when MLV vaccines were given pre-breeding to nulliparous heifers. Seventy-five beef heifers were allocated into treatment groups A (n=30; two MLV doses pre-breeding, annual revaccination with MLV vaccine), B (n=30; two MLV doses pre-breeding, annual revaccination with CV vaccine) and C (n=15; saline in lieu of vaccine)...
January 19, 2017: Vaccine
https://www.readbyqxmd.com/read/28109912/ifn-lambda-preferably-inhibits-pedv-infection-of-porcine-intestinal-epithelial-cells-compared-with-ifn-alpha
#18
Lin Li, Fang Fu, Mei Xue, Weiye Chen, Jin Liu, Hongyan Shi, Jianfei Chen, Zhigao Bu, Li Feng, Pinghuang Liu
In contrast to type I interferons that target various types of cells and organs, interferon lambda (IFN-L) primarily acts on mucosal epithelial cells and exhibits robust antiviral activity within the mucosal surface. Porcine epidemic diarrhea virus (PEDV), which causes high morbidity and mortality in piglets, is an enteropathogenic coronavirus with economic importance. Here, we demonstrated that both recombinant porcine IFN-L1 (rpIFN-L1) and rpIFN-L3 have powerful antiviral activity against PEDV infection of both Vero E6 cells and the intestinal porcine epithelial cell line J2 (IPEC-J2)...
January 19, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28100623/temperature-sensitive-lesion-in-the-n-terminal-domain-of-the-rotavirus-polymerase-affects-its-intracellular-localization-and-enzymatic-activity
#19
Allison O McKell, Leslie E W LaConte, Sarah M McDonald
: Temperature-sensitive (ts) mutants of simian rotavirus (RV) strain SA11 have been previously created to investigate the functions of viral proteins during replication. One mutant, SA11-tsC, maps to the gene encoding the VP1 polymerase and shows diminished growth and RNA synthesis at 39°C as compared to 31°C. In the current study, we sequenced all 11 genes of SA11-tsC, confirming the presence of an L138P mutation in the VP1 N-terminal domain and identifying 52 additional mutations in four other viral proteins (VP7, VP4, NSP2, and NSP1)...
January 18, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28099492/priming-cross-protective-bovine-viral-diarrhea-virus-specific-immunity-using-live-vectored-mosaic-antigens
#20
Shehnaz Lokhandwala, Xin Fang, Suryakant D Waghela, Jocelyn Bray, Leo M Njongmeta, Andy Herring, Karim W Abdelsalam, Christopher Chase, Waithaka Mwangi
Bovine viral diarrhea virus (BVDV) plays a key role in bovine respiratory disease complex, which can lead to pneumonia, diarrhea and death of calves. Current vaccines are not very effective due, in part, to immunosuppressive traits and failure to induce broad protection. There are diverse BVDV strains and thus, current vaccines contain representative genotype 1 and 2 viruses (BVDV-1 & 2) to broaden coverage. BVDV modified live virus (MLV) vaccines are superior to killed virus vaccines, but they are susceptible to neutralization and complement-mediated destruction triggered by passively acquired antibodies, thus limiting their efficacy...
2017: PloS One
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