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https://www.readbyqxmd.com/read/28931369/acute-hiv-infection-presenting-as-hemophagocytic-lymphohistiocytosis-case-report-and-review-of-the-literature
#1
Farheen Manji, Evan Wilson, Etienne Mahe, John Gill, John Conly
BACKGROUND: Hemophagocytic lymphohistiocytosis (HLH) is an uncommon systemic inflammatory condition that can result from infections, autoimmune diseases and malignancies. It is a rarely reported life threatening complication of an acute HIV infection, with only ten documented case reports per our literature search. We present a case of HLH secondary to acute HIV infection with a negative HIV antibody-based assay and high plasma viral load. CASE PRESENTATION: A 45 year old male with a past medical history of well controlled hypertension presented with fever, dizziness and non-bloody diarrhea...
September 20, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28930004/enteric-infections-circulating-during-hajj-seasons-2011-2013
#2
Moataz Abd El Ghany, Mona Alsomali, Malak Almasri, Eriko Padron Regalado, Raeece Naeem, AbdulHafeez Tukestani, Abdullah Asiri, Grant A Hill-Cawthorne, Arnab Pain, Ziad A Memish
Hajj, the annual Muslim pilgrimage to Mecca, Saudi Arabia, is a unique mass gathering event that raises public health concerns in the host country and globally. Although gastroenteritis and diarrhea are common among Hajj pilgrims, the microbial etiologies of these infections are unknown. We collected 544 fecal samples from pilgrims with medically attended diarrheal illness from 40 countries during the 2011-2013 Hajj seasons and screened the samples for 16 pathogens commonly associated with diarrheal infections...
October 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28924489/identification-of-an-enterovirus-recombinant-with-a-torovirus-like-gene-insertion-during-a-diarrhea-outbreak-in-fattening-pigs
#3
Nádia Conceição-Neto, Sebastiaan Theuns, Tingting Cui, Mark Zeller, Claude Kwe Yinda, Isaura Christiaens, Elisabeth Heylen, Marc Van Ranst, Sebastien Carpentier, Hans J Nauwynck, Jelle Matthijnssens
Diarrhea outbreaks in pig farms have raised major concerns in Europe and USA, as they can lead to dramatic pig losses. During a suspected outbreak in Belgium of porcine epidemic diarrhea virus (PEDV), we performed viral metagenomics to assess other potential viral pathogens. Although PEDV was detected, its low abundance indicated that other viruses were involved in the outbreak. Interestingly, a porcine bocavirus and several enteroviruses were most abundant in the sample. We also observed the presence of a porcine enterovirus genome with a gene insertion, resembling a C28 peptidase gene found in toroviruses, which was confirmed using re-sequencing, bioinformatics, and proteomics approaches...
July 2017: Virus Evolution
https://www.readbyqxmd.com/read/28919681/seroprevalence-of-bovine-viral-diarrhea-virus-in-crossbred-dairy-cattle-in-bangladesh
#4
Mohammed Arif Uddin, A S M Lutful Ahasan, Kamrul Islam, Md Zohorul Islam, Altaf Mahmood, Ariful Islam, Kazi Muhammad Fakhrul Islam, Abdul Ahad
AIM: The study was conducted to determine the seroprevalence of bovine viral diarrhea virus (BVDV) and hematological features in crossbred dairy cattle in Chittagong, Bangladesh. MATERIALS AND METHODS: The antibody against BVDV in crossbred dairy cattle serum was detected by indirect enzyme-linked immunosorbent assay. The association of different categorical variables in the prevalence of BVDV has been studied. Blood samples were collected and analyzed to know the hematological variations in the study population...
August 2017: Veterinary World
https://www.readbyqxmd.com/read/28915927/a-decade-of-research-into-classical-swine-fever-marker-vaccine-cp7_e2alf-suvaxyn-%C3%A2-csf-marker-a-review-of-vaccine-properties
#5
REVIEW
Sandra Blome, Kerstin Wernike, Ilona Reimann, Patricia König, Claudia Moß, Martin Beer
Due to its impact on animal health and pig industry, classical swine fever (CSF) is still one of the most important viral diseases of pigs. To control the disease, safe and highly efficacious live attenuated vaccines exist for decades. However, until recently, the available live vaccines did not allow a serological marker concept that is essentially important to circumvent long-term trade restrictions. In 2014, a new live attenuated marker vaccine, Suvaxyn(®) CSF Marker (Zoetis), was licensed by the European Medicines Agency...
September 15, 2017: Veterinary Research
https://www.readbyqxmd.com/read/28903865/economic-evaluation-of-the-eradication-program-for-bovine-viral-diarrhea-in-the-swiss-dairy-sector
#6
B Thomann, A Tschopp, I Magouras, M Meylan, G Schüpbach-Regula, B Häsler
Since 2008, the Swiss veterinary service has been running a mandatory eradication program for Bovine Viral Diarrhea (BVD) that is focused on detecting and eliminating persistently infected (PI) animals. Detection was initially based on antigen testing from ear tag samples of the entire cattle population, followed by antigen testing of all newborn calves until 2012. Since then, bulk milk serology (dairy herds) and blood sample serology (beef herds) have been used for the surveillance of disease-free herds. From 2008 to 2012, the proportion of newborn PI calves decreased from 1...
September 15, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28901254/therapeutics-and-immunoprophylaxis-against-noroviruses-and-rotaviruses
#7
Souvik Ghosh, Yashpal Singh Malik, Nobumichi Kobayashi
Noroviruses and rotaviruses are important viral etiologies of severe gastroenteritis. Noroviruses are the primary cause of non-bacterial diarrheal outbreaks in humans, whilst rotaviruses are a major cause of childhood diarrhea. Although both enteric pathogens substantially impact human health and economies, there are no approved drugs against noroviruses and rotaviruses, so far. On the other hand, whilst the currently licensed rotavirus vaccines have been successfully implemented in over 100 countries, the most advanced norovirus vaccine has recently completed phase-I and II trials...
September 12, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28893529/passive-immunity-to-control-bovine-coronavirus-diarrhea-in-a-dairy-herd-in-argentina
#8
Marina Bok, Martín Alassia, Flavia Frank, Celina G Vega, Andrés Wigdorovitz, Viviana Parreño
Bovine coronavirus (BCoV) is a viral enteric pathogen associated with calf diarrhea worldwide being, in Argentina, mostly detected in dairy husbandry systems. The aim of the present work was to study if maternal IgG1 antibodies (Abs) to BCoV acquired by colostrum intake modulate the development of BCoV infection in calves reared in a dairy farm in Argentina. Thirty Holstein calves were monitored during their first 60 days of age. Animals were classified into two groups depending on their initial BCoV IgG1 Ab titers...
September 8, 2017: Revista Argentina de Microbiología
https://www.readbyqxmd.com/read/28890472/ocular-abnormalities-associated-with-hypovitaminosis-a-in-hanwoo-calves-a-report-of-two-cases
#9
Seonmi Kang, Chanho Park, Kangmoon Seo
This study reports on two Hanwoo (a native Korean breed of cattle) calves, a 3- and 6-month-old presenting with diarrhea, anorexia, and blindness. Ophthalmoscopic examination revealed bilateral papilledema in both calves. Reverse-transcription polymerase chain reaction tests for bovine viral diarrhea virus, rotavirus, and coronavirus were all negative. The levels of serum vitamin A in the two affected calves were 0.317 µg/dl and 0.481 µg/dl, respectively. These values are much lower than the normal vitamin A levels; therefore, the calves were diagnosed with hypovitaminosis A...
September 8, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28888653/porcine-epidemic-diarrhea-virus-does-not-replicate-in-porcine-monocyte-derived-dendritic-cells-but-activates-the-transcription-of-type-i-interferon-and-chemokine
#10
Xiuqing Wang, Martha Ohnstad, April Nelsen, Eric Nelson
Porcine epidemic diarrhea virus (PEDV) belongs to the alphacoronavirus of the Coronaviridae. It is the major etiological agent of the recent outbreaks of piglet diarrhea and death in the US. Limited knowledge is currently available regarding the role of dendritic cells in PEDV infection. Here, we observed that PEDV did not replicate in monocyte-derived dendritic cells as evidenced by the decrease of viral gene transcript copies in infected cells by qRT-PCR and the absence of viral proteins by immunofluorescence staining as well as the absence of virus particles in infected cells by transmission electron microscopy...
September 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28888645/eradication-of-bovine-viral-diarrhea-virus-in-germany-diversity-of-subtypes-and-detection-of-live-vaccine-viruses
#11
Kerstin Wernike, Horst Schirrmeier, Heinz-Günter Strebelow, Martin Beer
Bovine viral diarrhea (BVD) causes high economic losses in the cattle population worldwide. In Germany, an obligatory control program with detection and removal of persistently infected animals is in force since 2011. For molecular tracing of virus transmission, a comprehensive sequence data base of the currently circulating BVD viruses was established. Partial sequences of 1007 samples collected between 2008 and 2016 were generated. As dominant viruses, subtypes 1b (47.0%) and 1d (26.5%) could be identified with no marked geographic or sampling year effect, a much higher amount of BVDV-2c was detected in 2013 compared to other years, predominantly in Western Germany...
September 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28884395/cellular-cholesterol-is-required-for-porcine-nidovirus-infection
#12
Ji Hyun Jeon, Changhee Lee
Porcine reproductive and respiratory syndrome virus (PRRSV) and porcine epidemic diarrhea virus (PEDV) are porcine nidoviruses that are considered emerging and re-emerging viral pathogens of pigs that pose a significant economic threat to the global pork industry. Although cholesterol is known to affect the replication of a broad range of viruses in vitro, its significance and role in porcine nidovirus infection remains to be elucidated. Therefore, the present study was conducted to determine whether cellular or/and viral cholesterol levels play a role in porcine nidovirus infection...
September 7, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28878771/coordinated-role-of-toll-like-receptor-3-and-retinoic-acid-inducible-gene-i-in-the-innate-response-of-bovine-endometrial-cells-to-virus
#13
Luisa C Carneiro, Carmen Bedford, Sarah Jacca, Alfonso Rosamilia, Vera F de Lima, Gaetano Donofrio, I Martin Sheldon, James G Cronin
Bovine herpesvirus-4 (BoHV-4) and bovine viral diarrhea virus (BVDV) infect the uterus of cattle, often resulting in reduced fertility, or abortion of the fetus, respectively. Here, exposure of primary bovine endometrial cells to BoHV-4 or BVDV modulated the production of inflammatory mediators. Viral pathogen-associated molecular patterns (PAMPs) are detected via pattern-recognition receptors (PRRs). However, the relative contribution of specific PRRs to innate immunity, during viral infection of the uterus, is unclear...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28875827/multiple-myeloma-associated-intestinal-amyloidosis-intestinal-pseudo-obstruction-falsely-considered-as-an-ascites
#14
Vladimir Milivojevic, Maja Stojanovic, Ivan Rankovic, Marjan Micev, Rada Jesic Vukicevic, Tomica Milosavljevic
INTRODUCTION: Amyloidosis is a group of diseases pathohistologicaly diagnosed by characteristic extracellular deposition of an abnormal fibrillary protein (i.e. amyloid) into organs, leading to organ dysfunction secondary to destruction of normal tissue architecture. METHOD: Case-report of a 44 year-old female, presenting with massive abdominal distension clinically suspected of ascites. RESULTS: On admission, the patient was complaining of nausea, vomiting, abdominal pain, distension and bloating associated with weight loss and diarrhea...
August 29, 2017: Reviews on Recent Clinical Trials
https://www.readbyqxmd.com/read/28874234/retention-and-topology-of-the-bovine-viral-diarrhea-virus-glycoprotein-e2
#15
Christina Radtke, Birke Andrea Tews
Pestiviruses are enveloped viruses that bud intracellularly. They have three envelope glycoproteins, Erns, E1, and E2. E2 is the receptor binding protein and the main target for neutralizing antibodies. Both Erns and E2 are retained intracellularly. Here, E2 of the bovine viral diarrhea virus (BVDV) strain CP7 was used to study the membrane topology and intracellular localization of the protein. E2 is localized in the ER and there was no difference between E2 expressed alone or in the context of the viral polyprotein...
September 6, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28872588/ultrastructural-characterization-of-membrane-rearrangements-induced-by-porcine-epidemic-diarrhea-virus-infection
#16
Xingdong Zhou, Yingying Cong, Tineke Veenendaal, Judith Klumperman, Dongfang Shi, Muriel Mari, Fulvio Reggiori
The porcine epidemic diarrhea virus (PEDV) is a coronavirus (CoV) belonging to the α-CoV genus and it causes high mortality in infected sucking piglets, resulting in substantial losses in the farming industry. CoV trigger a drastic reorganization of host cell membranes to promote their replication and egression, but a detailed description of the intracellular remodeling induced by PEDV is still missing. In this study, we examined qualitatively and quantitatively, using electron microscopy, the intracellular membrane reorganization induced by PEDV over the course of an infection...
September 5, 2017: Viruses
https://www.readbyqxmd.com/read/28864657/recovery-optimization-and-survival-of-human-norovirus-surrogates-feline-calicivirus-and-murine-norovirus-on-carpet
#17
David Buckley, Angela Fraser, Guohui Huang, Xiuping Jiang
Carpet been attributed to prolonged and reoccurring outbreaks of human noroviruses (HuNoV), the leading cause of acute gastroenteritis worldwide. Viral recovery from environmental surfaces, such as carpet, remains undeveloped. Our aim was to determine survival of HuNoV surrogates on an understudied environmental surface, carpet. First, we measured the zeta potential and absorption capacity of wool and nylon carpet fibers, then developed a mini-spin column elution method (MSC), and lastly characterized the survival of HuNoV surrogates, feline calicivirus (FCV) and murine norovirus (MNV), over 60 days under 30 and 70% relative humidity (RH) on two types of carpet and one glass surface...
September 1, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28864423/alpha-mangostin-inhibits-both-dengue-virus-production-and-cytokine-chemokine-expression
#18
Mayuri Tarasuk, Pucharee Songprakhon, Pattamawan Chimma, Panudda Sratongno, Kesara Na-Bangchang, Pa-Thai Yenchitsomanus
Since severe dengue virus (DENV) infection in humans associates with both high viral load and massive cytokine production - referred to as "cytokine storm", an ideal drug for treatment of DENV infection should efficiently inhibit both virus production and cytokine expression. In searching for such an ideal drug, we discovered that α-mangostin (α-MG), a major bioactive compound purified from the pericarp of the mangosteen fruit (Garcinia mangostana Linn), which has been used in traditional medicine for several conditions including trauma, diarrhea, wound infection, pain, fever, and convulsion, inhibits both DENV production in cultured hepatocellular carcinoma HepG2 and Huh-7 cells, and cytokine/chemokine expression in HepG2 cells...
August 31, 2017: Virus Research
https://www.readbyqxmd.com/read/28854955/identification-of-two-mutation-sites-in-spike-and-envelope-proteins-mediating-optimal-cellular-infection-of-porcine-epidemic-diarrhea-virus-from-different-pathways
#19
Min Sun, Jiale Ma, Zeyanqiu Yu, Zihao Pan, Chengping Lu, Huochun Yao
Entry of the α-coronavirus porcine epidemic diarrhea virus (PEDV) requires specific proteases to activate spike (S) protein for the membrane fusion of the virion to the host cell following receptor binding. Herein, PEDV isolate 85-7 could proliferate and induce cell-cell fusion in a trypsin independent manner on Vero cells, and eight homologous mutation strains were screened by continuous proliferation in the absence of trypsin on Vero cells. According to the whole genome sequence comparative analysis, we identified four major variations located in nonstructural protein 2, S, open reading frame 3, and envelope (E) genes, respectively...
August 30, 2017: Veterinary Research
https://www.readbyqxmd.com/read/28854799/photodynamic-effect-of-some-phthalocyanines-on-enveloped-and-naked-viruses
#20
L Nikolaeva-Glomb, L Mukova, N Nikolova, V Kussovski, L Doumanova, V Mantareva, I Angelov, D Wöhrle, A S Galabov
Activity of three photosensitizing phthalocyanine derivatives was tested for photodynamic inactivation towards two coated and two non-enveloped viruses - bovine viral diarrhea virus (BVDV), influenza virus A(H3N2), poliovirus type 1 (PV-1) and human adenovirus type 5 (HAdV5). In the case of coated viruses, a combination of virucidal and irradiation effects was registered by octa-methylpyridyloxy-substituted Ga phthalocyanine (Ga8) toward BVDV, whereas tetra-methylpyridyloxy-substituted Ga phthalocyanine (Ga4) revealed a marked photoinactivation only...
2017: Acta Virologica
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