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https://www.readbyqxmd.com/read/28736753/combination-of-rt-pcr-and-proteomics-for-the-identification-of-crimean-congo-hemorrhagic-fever-virus-in-ticks
#1
Isabel G Fernández de Mera, Ilias Chaligiannis, Angélica Hernández-Jarguín, Margarita Villar, Lourdes Mateos-Hernández, Anna Papa, Smaragda Sotiraki, Francisco Ruiz-Fons, Alejandro Cabezas-Cruz, Christian Gortázar, José de la Fuente
Crimean-Congo hemorrhagic fever (CCHF) is an emerging tick-borne zoonotic disease caused by the CCHF virus (CCHFV). In this study, an experimental approach combining RT-PCR and proteomics was used for the identification and characterization of CCHFV in 106 ticks from 7 species that were collected from small ruminants in Greece. The methodological approach included an initial screening for CCHFV by RT-PCR followed by proteomics analysis of positive and control negative tick samples. This novel approach allowed the identification of CCHFV-positive ticks and provided additional information to corroborate the RT-PCR findings using a different approach...
July 2017: Heliyon
https://www.readbyqxmd.com/read/28733114/targeting-heat-shock-factor-1-as-an-antiviral-strategy-against-dengue-virus-replication-in-vitro-and-in-vivo
#2
Tsung-Ting Tsai, Chia-Ling Chen, Cheng-Chieh Tsai, Chiou-Feng Lin
Fever onset is correlated with viremia in dengue virus (DENV) patients. Heat shock factor 1 (HSF1), a heat stress response host transcription factor, plays a crucial role in regulating multiple cellular functions, as well as the onset of infectious diseases. This study evaluated the role of HSF1 in DENV replication as a means of regulating DENV infection in vitro and in vivo. DENV infection activated HSF1 in both Ca(2+) and protein kinase A-dependent manners. Inhibiting HSF1 effectively reduced DENV replication, not only in THP-1 cells but also in primary human monocytes...
July 18, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28732376/risk-factors-associated-with-fatality-of-severe-fever-with-thrombocytopenia-syndrome-a-meta-analysis
#3
Yuxin Chen, Bei Jia, Yong Liu, Rui Huang, Junhao Chen, Chao Wu
Severe fever with thrombocytopenia syndrome is an emerging life-threatening infectious disease identified in 2009. Given high case-fatality rate among patients with severe fever with thrombocytopenia syndrome, identification of the risk factors at acute phase associated with fatality is crucial for treatment. Therefore, we aimed to meta-analytically evaluate risk factors of fatal clinical outcome of severe fever with thrombocytopenia syndrome. 238 fatal cases and 873 non-fatal cases from 12 studies were included in this meta-analysis...
July 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28729050/an-infant-with-concurrent-serotype-6c-invasive-pneumococcal-disease-and-infectious-mononucleosis
#4
Naoko Nishikawa-Nakamura, Takafumi Okada, Keiko Nishimura, Tsuyako Iwai, Kimiko Ubukata, Satoshi Iwata, Asayuki Iwai
Streptococcus pneumoniae is a main causative agent of serious invasive bacterial infections. However, concurrent infection with invasive pneumococcal disease (IPD) and viral infectious mononucleosis (IM) is rare. We report an infant with serotype 6C infection causing IPD occurring simultaneously with IM. A previously healthy 11-month-old girl referred to our hospital because of fever, leukopenia, and elevated C-reactive protein presented to us with disturbance of consciousness, tachycardia, tachypnea and agranulocytosis...
July 17, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28728558/accuracy-of-a-plasmodium-falciparum-specific-histidine-rich-protein-2-rapid-diagnostic-test-in-the-context-of-the-presence-of-non-malaria-fevers-prior-anti-malarial-use-and-seasonal-malaria-transmission
#5
Francois Kiemde, Massa Dit Achille Bonko, Marc Christian Tahita, Palpouguini Lompo, Toussaint Rouamba, Halidou Tinto, Michael Boele van Hensbroek, Petra F Mens, Henk D F H Schallig
BACKGROUND: It remains challenging to distinguish malaria from other fever causing infections, as a positive rapid diagnostic test does not always signify a true active malaria infection. This study was designed to determine the influence of other causes of fever, prior anti-malarial treatment, and a possible seasonality of the performance of a PfHRP2 RDT for the diagnosis of malaria in children under-5 years of age living in a malaria endemic area. METHODS: A prospective etiology study was conducted in 2015 among febrile children under 5 years of age in Burkina Faso...
July 20, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28727764/vaccinia-virus-and-cowpox-virus-are-not-susceptible-to-the-interferon-induced-antiviral-protein-mxa
#6
María M Lorenzo, Juana M Sanchez-Puig, Rafael Blasco
MxA protein is expressed in response to type I and type III Interferon and constitute an important antiviral factor with broad antiviral activity to diverse RNA viruses. In addition, some studies expand the range of MxA antiviral activity to include particular DNA viruses like Monkeypox virus (MPXV) and African Swine Fever virus (ASFV). However, a broad profile of activity of MxA to large DNA viruses has not been established to date. Here, we investigated if some well characterized DNA viruses belonging to the Poxviridae family are sensitive to human MxA...
2017: PloS One
https://www.readbyqxmd.com/read/28727329/-fever-and-rash-in-the-adult-patient
#7
Stéphanie D'incau, Dan Lebowitz, Laurence Toutous-Trellu, Gilles Eperon, Benedikt Huttner
Fever with rash is a frequent reason for consultation. A detailed medical history and thorough physical examination are essential since laboratory tests often lack specificity. Certain infectious and non-infectious causes are considered medical emergencies and must always be investigated upon initial evaluation. In the case of a history of recent travel the differential diagnosis has to be broadened but it should not be forgotten that resurgent « childhood » viral diseases like measles can be acquired while traveling...
April 12, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28726298/faah-but-not-magl-inhibition-modulates-acute-tlr3-induced-neuroimmune-signaling-in-the-rat-independent-of-sex
#8
Lisa E Flannery, Rebecca J Henry, Daniel M Kerr, David P Finn, Michelle Roche
Toll-like receptor (TLR)3 is a key component of the innate immune response to viral infection. The present study firstly examined whether sex differences exist in TLR3-induced inflammatory, endocrine, and sickness responses. The data revealed that TLR3-induced expression of interferon- or NFkB-inducible genes (IFN-α/β, IP-10, or TNF-α), either peripherally (spleen) or centrally (hypothalamus), did not differ between male and female rats, with the exception of TLR3-induced IFN-α expression in the spleen of female, but not male, rats 8 hr post TLR3 activation...
July 20, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/28725563/atypical-hemolytic-uremic-syndrome-triggered-by-varicella-infection
#9
Pauline Condom, Jean-Michel Mansuy, Stéphane Decramer, Jacques Izopet, Catherine Mengelle
Varicella Zoster Virus (VZV) is a well-known virus that belongs to the Herpesviridae family which induces a self-limited disease except in specific cases in particular among stem cell transplant patients. This virus is not known however to trigger atypical Hemolytic Uremic Syndrome (aHUS). Here we report the case of a six-year-old boy who was hospitalized with fever and abdominal pains associated to pruritic and vesicular rash, thrombocytopenia and acute renal failure. He was diagnosed with aHUS precipitated by varicella virus...
2017: IDCases
https://www.readbyqxmd.com/read/28725108/identification-of-the-linear-ligand-epitope-on-classical-swine-fever-virus-that-interacts-with-porcine-kidney-15-cells
#10
Yin Mei, Feng Yue, Hong-Mei Ning, Juan-Juan Zhou, Xuan-Nian Wang
Binding of the viral ligand to a specific receptor is the first step of virus entry into target cells. The envelope proteins E(rns), E1, and E2 of classical swine fever virus (CSFV) are involved in the interaction with host cell receptors to mediate CSFV infection. The aim of this investigation was to identify epitopes that bind to porcine kidney (PK)-15 cells to prevent CSFV infection. Ten peptides representing E(rns), E1, and E2 were synthesized. Immunohistochemical study showed that the SE24 peptide, which is derived from the E2 amino acid sequence, could effectively bind to PK-15 cells...
July 2017: Canadian Journal of Veterinary Research, Revue Canadienne de Recherche Vétérinaire
https://www.readbyqxmd.com/read/28721853/us10-a-novel-npro-interacting-protein-inhibits-classical-swine-fever-virus-replication
#11
Huifang Lv, Wang Dong, Gui Qian, Jie Wang, Xiaomeng Li, Zhi Cao, Qizhuang Lv, Chengbao Wang, Kangkang Guo, Yanming Zhang
Classical swine fever (CSF) is a severe, febrile and highly contagious disease caused by classical swine fever virus (CSFV) that has resulted in huge economic losses in the pig industry worldwide. CSFV Npro has been actively studied but remains incompletely understood. Few studies have investigated the cellular proteins that interact with Npro and their participation in viral replication. Here, the yeast two-hybrid (Y2H) system was employed to screen Npro-interacting proteins from a porcine alveolar macrophage (PAM) cDNA library, and a blast search of the NCBI database revealed that 15 cellular proteins interact with Npro...
July 18, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28720142/comparison-of-serological-assays-to-titrate-hantaan-and-seoul-hantavirus-specific-antibodies
#12
Weihong Li, Shouchun Cao, Quanfu Zhang, Jiandong Li, Shuo Zhang, Wei Wu, Jing Qu, Chuan Li, Mifang Liang, Dexin Li
BACKGROUND: Hantaan and Seoul viruses, in the Hantavirus genus, are known to cause hemorrhagic fever with renal syndrome (HFRS). The plaque reduction neutralization test (PRNT), as conventional neutralization test for hantaviruses, is laborious and time-consuming. Alternatives to PRNT for hantaviruses are required. METHODS: In this study, the methods for Hantaan and Seoul viruses serological typing including microneutralization test (MNT), pseudoparticle neutralization test (PPNT) and immunofluorescence assay based on viral glycoproteins (IFA-GP) were developed and compared with PRNT using a panel of 74 sera including 44 convalescent sera of laboratory confirmed HFRS patients and 30 patients sera of non-hantavirus infection...
July 18, 2017: Virology Journal
https://www.readbyqxmd.com/read/28717338/perspectives-about-pandemic-influenza-and-its-prophylactic-measures-among-final-year-pharmacy-students-in-karachi-pakistan
#13
Najia Rahim, Wajiha Iffat, Sadia Shakeel, Muhammad Iyad Naeem, Faiza Qazi, Mehwish Rizvi, Iqbal Nasiri, Lubna Bashir, Faisal Muhammad Khan, Hina Yaseen, Shazia Jamshed
AIMS: In flu pandemics, pharmacy students' knowledge, attitudes, and practices are critical to save patients life. The objective of study was to determine the knowledge of and attitude toward the pandemic influenza among the pharmacy students of Karachi, Pakistan. SETTINGS AND DESIGNS: The cross-sectional study was conducted from September to December 2014 by adopting a prevalidated questionnaire distributed to senior pharmacy students (final year) in seven private and public sector universities of Karachi...
April 2017: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/28716891/which-dengue-vaccine-approach-is-the-most-promising-and-should-we-be-concerned-about-enhanced-disease-after-vaccination-the-path-to-a-dengue-vaccine-learning-from-human-natural-dengue-infection-studies-and-vaccine-trials
#14
Aravinda M de Silva, Eva Harris
Dengue virus (DENV) is the most common arthropod-borne viral disease of humans. Although effective vaccines exist against other flaviviral diseases like yellow fever and Japanese encephalitis, dengue vaccine development is complicated by the presence of four virus serotypes and the possibility of partial immunity enhancing dengue disease severity. Several live attenuated dengue vaccines are being tested in human clinical trials. Initial results are mixed, with variable efficacy depending on DENV serotype and previous DENV exposure...
July 17, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28712416/biopsychosocial-risk-factors-of-persistent-fatigue-after-acute-infection-a-systematic-review-to-inform-interventions
#15
REVIEW
Katrin Hulme, Joanna L Hudson, Philine Rojczyk, Paul Little, Rona Moss-Morris
OBJECTIVES: Fatigue is a prevalent and debilitating symptom, preceded by an acute infectious episode in some patients. This systematic review aimed to identify risk factors for the development of persistent fatigue after an acute infection, to develop an evidence-based working model of post-infectious fatigue. METHODS: Electronic databases (Medline, PsycINFO and EMBASE) were searched, from inception to March 2016, for studies which investigated biopsychosocial risk factors of on-going fatigue after an acute infection...
August 2017: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/28710823/the-african-swine-fever-epidemic-in-west-africa-1996-2002
#16
REVIEW
A-A Brown, M L Penrith, F O Fasina, D Beltran-Alcrudo
African swine fever (ASF) is a contagious, highly fatal, haemorrhagic viral disease that only affects members of the Suidae family. Currently, no vaccine or treatment exists, so the disease has potentially devastating consequences for the pig industries, availability of affordable protein livelihoods and trade. This study aimed to consolidate historical information generated by working towards the control and eradication of ASF in previously unaffected countries in West Africa during 1996-2002. This descriptive analysis entailed the evaluation and review of archived records and reports of outbreaks, data from veterinary services, veterinary consultants and peer-reviewed publications...
July 14, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28710814/inter-epidemic-rift-valley-fever-virus-seroconversions-in-an-irrigation-scheme-in-bura-south-east-kenya
#17
D Mbotha, B Bett, S Kairu-Wanyoike, D Grace, A Kihara, M Wainaina, A Hoppenheit, P-H Clausen, J Lindahl
Rift Valley fever (RVF) is an acute mosquito-borne viral zoonosis whose outbreaks are often associated with prolonged rainfall and flooding, during which large numbers of vectors emerge. Recent studies into the inter-epidemic maintenance of RVF virus (RVFV) suggest that both vertical transmission in vectors and direct transmission between hosts act in combination with predisposing factors for persistence of the virus. A comparative longitudinal survey was carried out in Tana River County, Kenya, in irrigated, riverine and pastoral ecosystems from September 2014-June 2015...
July 14, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28710778/a-detection-method-for-the-rash-and-fever-illness-associated-viruses-using-multiplex-rt-pcr
#18
Yuki Matsushima, Tomomi Shimizu, Ikuko Doi, Fuminori Mizukoshi, Koo Nagasawa, Akihide Ryo, Hideaki Shimizu, Masae Kobayashi, Keiji Funatogawa, Noriko Nagata, Mariko Ishikawa, Ayako Komane, Nobuhiko Okabe, Yoshio Mori, Makoto Takeda, Hirokazu Kimura
To detect various viral genes in the patients with rash and fever illness (RFI), a new multiplex (reverse transcription) polymerase chain reaction [(RT)-PCR] method was constructed. New primer sets were designed for the detection of herpes simplex viruses 1 and 2 (HSV1 and 2), and Epstein-Barr virus (EBV). The newly designed and previously reported primer sets were used to detect 13 types of RFI-associated viruses by multiplex (RT)-PCR assay systems. Moreover, to eliminate non-specific PCR products, a double-stranded specific DNase was used for the digestion of double-stranded DNA derived from the templates in clinical specimens...
July 15, 2017: Microbiology and Immunology
https://www.readbyqxmd.com/read/28705467/sarcoidosis-with-fever-and-a-splenic-infarct-due-to-cmv-or-lymphoma
#19
REVIEW
Burke A Cunha, Thulashie Sivarajah, Ismail Jimada
We present a case of an adult female with a past history of pulmonary sarcoidosis who presented with fever, night sweats, profound fatigue, and LUQ abdominal pain. Sarcoidosis is an afebrile disorder (excluding Lofgren's syndrome, Heerfordt's syndrome or neurosarcoidosis). Therefore, the presence of fever with sarcoidosis should suggest infection, usually viral, or lymphoma. Sarcoidosis-lymphoma syndrome describes the evolution of a lymphoma in long standing sarcoidosis. Fever aside, possible lymphoma is suggested by otherwise unexplained fever, pleural unilateral effusion, highly elevated ESR or ferritin levels...
July 10, 2017: Heart & Lung: the Journal of Critical Care
https://www.readbyqxmd.com/read/28705183/generic-amplification-and-next-generation-sequencing-reveal-crimean-congo-hemorrhagic-fever-virus-ap92-like-strain-and-distinct-tick-phleboviruses-in-anatolia-turkey
#20
Ender Dinçer, Annika Brinkmann, Olcay Hekimoğlu, Sabri Hacıoğlu, Katalin Földes, Zeynep Karapınar, Pelin Fatoş Polat, Bekir Oğuz, Özlem Orunç Kılınç, Peter Hagedorn, Nurdan Özer, Aykut Özkul, Andreas Nitsche, Koray Ergünay
BACKGROUND: Ticks are involved with the transmission of several viruses with significant health impact. As incidences of tick-borne viral infections are rising, several novel and divergent tick- associated viruses have recently been documented to exist and circulate worldwide. This study was performed as a cross-sectional screening for all major tick-borne viruses in several regions in Turkey. Next generation sequencing (NGS) was employed for virus genome characterization. Ticks were collected at 43 locations in 14 provinces across the Aegean, Thrace, Mediterranean, Black Sea, central, southern and eastern regions of Anatolia during 2014-2016...
July 14, 2017: Parasites & Vectors
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