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https://www.readbyqxmd.com/read/28396283/experimental-infections-of-wild-bank-voles-myodes-glareolus-from-nephropatia-epidemica-endemic-and-non-endemic-regions-revealed-slight-differences-in-puumala-virological-course-and-immunological-responses
#1
Adélaïde Dubois, Guillaume Castel, Séverine Murri, Coralie Pulido, Jean-Baptiste Pons, Laure Benoit, Anne Loiseau, Latifa Lakhdar, Maxime Galan, Nathalie Charbonnel, Philippe Marianneau
In Europe, the occurrence of nephropathia epidemica (NE), a human disease caused by Puumala virus (PUUV), exhibits considerable geographical heterogeneity despite the continuous distribution of its reservoir, the bank vole Myodes glareolus. To better understand the causes of this heterogeneity, wild voles sampled in two adjacent NE endemic and non-endemic regions of France were infected experimentally with PUUV. The responses of bank voles to PUUV infection, based on the levels of anti-PUUV IgG and viral RNA, were compared...
April 7, 2017: Virus Research
https://www.readbyqxmd.com/read/28368241/seoul-virus-infection-in-humans-france-2014-2016
#2
Jean-Marc Reynes, Damien Carli, Jean-Baptiste Bour, Samir Boudjeltia, Anny Dewilde, Guillaume Gerbier, Timothée Nussbaumer, Véronique Jacomo, Marie-Pierre Rapt, Pierre E Rollin, Alexandra Septfons
We report detection of Seoul virus in 3 patients in France over a 2-year period. These patients accounted for 4 (1.7%) of 434 hantavirus infections reported during this time. More attention should be given to this virus in Europe where surveillance has been focused mostly on Puumala and Dobrava-Belgrade hantaviruses.
June 15, 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28332927/leptospira-spp-in-small-mammals-from-areas-with-low-and-high-human-hantavirus-incidences-in-south-west-germany
#3
Anna Obiegala, Christoph Albrecht, Maysaa Dafalla, Stephan Drewes, Carolin Oltersdorf, Hendrik Turni, Christian Imholt, Jens Jacob, Christiane Wagner-Wiening, Rainer G Ulrich, Martin Pfeffer
INTRODUCTION: Leptospirosis is caused by Leptospira spp. and is considered the most widespread zoonotic disease worldwide. It mimics nephropathia epidemica in humans, a disease mainly caused by Puumala hantavirus (PUUV). Small mammals are reservoirs for Leptospira spp. and PUUV. Seewis virus (SWSV) is a shrew-borne hantavirus with unknown pathogenicity. The objective of this study was to estimate the prevalence for Leptospira spp. and the frequency of Leptospira-hantavirus co-infections in small mammals collected at locations with high and low incidences in humans...
March 23, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28319945/glomerular-proteinuria-predicts-the-severity-of-acute-kidney-injury-in-puumala-hantavirus-induced-tubulointerstitial-nephritis
#4
Paula S Mantula, Tuula K Outinen, Jan P G Clement, Heini S A Huhtala, Ilkka H Pörsti, Antti Vaheri, Jukka T Mustonen, Satu M Mäkelä
BACKGROUND: Puumala virus (PUUV)-induced hemorrhagic fever with renal syndrome is common in many European countries. The typical renal histologic lesion is acute tubulointerstitial nephritis. We examined the type and kinetics of urine protein excretion and prognostic significance of proteinuria for the severity of acute kidney injury (AKI) in acute PUUV infection. METHODS: The amount of dipstick albuminuria at hospital admission was analyzed in 205 patients with acute PUUV infection...
March 21, 2017: Nephron
https://www.readbyqxmd.com/read/28276794/insufficient-efficacy-and-safety-of-intravenous-ribavirin-in-treatment-of-haemorrhagic-fever-with-renal-syndrome-caused-by-puumala-virus
#5
RANDOMIZED CONTROLLED TRIAL
Oleg V Malinin, Alexander E Platonov
BACKGROUND: Intravenous ribavirin has been reported to be an effective treatment for haemorrhagic fever with renal syndrome (HFRS) caused by Hantaan virus in Asia. However, its therapeutic benefits for HFRS caused by Puumala virus (PUUV) in Europe are still unknown. METHODS: A randomized, open-label study of efficacy and safety of intravenous ribavirin in the treatment of HFRS was conducted in the European part of Russia. Seventy-three patients with suspected HFRS within 4 d of the onset of the disease were randomized to receive either intravenous ribavirin (33 mg/kg, followed by 16 mg/kg given every 6 h for 4 d and by 8 mg/kg given every 8 h for 3 d) plus standard therapy (n = 37) or standard therapy alone (n = 36)...
July 2017: Infectious Diseases
https://www.readbyqxmd.com/read/28249631/expansion-of-spatial-and-host-range-of-puumala-virus-in-sweden-an-increasing-threat-for-humans
#6
O Borg, M Wille, P Kjellander, U A Bergvall, P-E Lindgren, J Chirico, Å Lundkvist
Hantaviruses are globally distributed and cause severe human disease. Puumala hantavirus (PUUV) is the most common species in Northern Europe, and the only hantavirus confirmed to circulate in Sweden, restricted to the northern regions of the country. In this study, we aimed to further add to the natural ecology of PUUV in Sweden by investigating prevalence, and spatial and host species infection patterns. Specifically, we wanted to ascertain whether PUUV was present in the natural reservoir, the bank vole (Myodes glareolus) further south than Dalälven river, in south-central Sweden, and whether PUUV can be detected in other rodent species in addition to the natural reservoir...
March 2, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28245831/puumala-hantavirus-infections-in-bank-vole-populations-host-and-virus-dynamics-in-central-europe
#7
Daniela Reil, Ulrike M Rosenfeld, Christian Imholt, Sabrina Schmidt, Rainer G Ulrich, Jana A Eccard, Jens Jacob
BACKGROUND: In Europe, bank voles (Myodes glareolus) are widely distributed and can transmit Puumala virus (PUUV) to humans, which causes a mild to moderate form of haemorrhagic fever with renal syndrome, called nephropathia epidemica. Uncovering the link between host and virus dynamics can help to prevent human PUUV infections in the future. Bank voles were live trapped three times a year in 2010-2013 in three woodland plots in each of four regions in Germany. Bank vole population density was estimated and blood samples collected to detect PUUV specific antibodies...
February 28, 2017: BMC Ecology
https://www.readbyqxmd.com/read/28229289/clinical-aspects-of-hantavirus-infections-in-bulgaria
#8
I Christova, M Pishmisheva, I Trifonova, N Vatev, M Stoycheva, M Tiholova, D Igova, M Baev, R Karagyaurova, U Prokopova
BACKGROUND: Hantaviruses cause two distinct human diseases: hemorrhagic fever with renal syndrome (HFRS) in Asia and Europe and hantavirus pulmonary syndrome (HPS) in America. In Europe, mainly Puumala, Dobrava and Seoul viruses cause HFRS. A total of 23 cases of HFRS were detected in Bulgaria over a 2‑year period 2013-2014. The aim of the study was to present epidemiology, clinical manifestations and laboratory findings of these patients. METHODS: Patients with HFRS were diagnosed using PCR, ELISA and immunoblotting tests...
February 22, 2017: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/28141593/clinical-and-virological-characteristics-of-hantavirus-infections-in-a-2014-croatian-outbreak
#9
Tatjana Vilibic-Cavlek, Alena Furic, Ljubo Barbic, Irena Tabain, Vladimir Stevanovic, Gordana Mlinaric-Galinovic
INTRODUCTION: Croatia is endemic for hemorrhagic fever with renal syndrome (HFRS), with both Puumala (PUUV) and Dobrava virus (DOBV) documented. Several large outbreaks were recorded in 1995, 2002, and 2012. We analyzed demographic, clinical, laboratory, and virological characteristics of HFRS cases detected in three geographically close natural foci (Ogulin, Slunj, and the Plitvice Lakes surroundings) during the 2014 outbreak. METHODOLOGY: From January to December 2014, 122 patients with suspected HFRS were tested for hantavirus IgM/IgG antibodies using an indirect immunofluorescence assay (IFA)...
January 30, 2017: Journal of Infection in Developing Countries
https://www.readbyqxmd.com/read/28112627/high-prevalence-of-tula-hantavirus-in-common-voles-in-the-netherlands
#10
Miriam Maas, Ankje de Vries, Annika van Roon, Katsuhisa Takumi, Joke van der Giessen, Barry Rockx
Tula virus (TULV) is a zoonotic hantavirus. Knowledge about TULV in the Netherlands is very scarce. Therefore in 2014, 49 common voles (Microtus arvalis) from a region in the south of the Netherlands, and in 2015, 241 common voles from regions in the north of the Netherlands were tested with the TULV quantitative RT-PCR. In the southern region, prevalence of TULV was 41% (20/49). In the northern regions, prevalence ranged from 12% (4/34) to 45% (17/38). Phylogenetic analysis of the obtained sequences showed that the regions fall within different clusters...
March 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28105849/antiviral-therapy-and-prevention-against-hantavirus-infections
#11
R Szabó
Hantaviruses are emerging zoonoses hosted by small mammals. In humans, they cause two diseases. Hemorrhagic fever with renal syndrome is mainly caused by Dobrava-Belgrade virus, Puumala virus, Seoul virus and Hantaan virus in Asia and Europe. On the other hand, the most important causes of hantavirus cardiopulmonary syndrome are Sin Nombre virus and Andes virus in Americas. Ribavirin yet remains the only licensed drug against the hantavirus infections, but its sufficient antiviral activity remains an issue under discussion...
February 6, 2017: Acta Virologica
https://www.readbyqxmd.com/read/28093611/a-highly-divergent-puumala-virus-lineage-in-southern-poland
#12
Ulrike M Rosenfeld, Stephan Drewes, Hanan Sheikh Ali, Edyta T Sadowska, Magdalena Mikowska, Gerald Heckel, Paweł Koteja, Rainer G Ulrich
Puumala virus (PUUV) represents one of the most important hantaviruses in Central Europe. Phylogenetic analyses of PUUV strains indicate a strong genetic structuring of this hantavirus. Recently, PUUV sequences were identified in the natural reservoir, the bank vole (Myodes glareolus), collected in the northern part of Poland. The objective of this study was to evaluate the presence of PUUV in bank voles from southern Poland. A total of 72 bank voles were trapped in 2009 at six sites in this part of Poland...
January 16, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28057727/indoleamine-2-3-dioxygenase-activity-is-associated-with-regulatory-t-cell-response-in-acute-puumala-hantavirus-infection
#13
Tuisku-Tuulia Koivula, Anni Tuulasvaara, Iivo Hetemäki, Mikko Hurme, Satu Mäkelä, Jukka Mustonen, Antti Vaheri, T Petteri Arstila
High indoleamine 2,3-dioxygenase (IDO) activity is associated with clinically severe acute infection caused by Puumala hantavirus. The immunoregulatory effects of IDO can be mediated either through metabolic control of effector T cells, caused by depletion of the essential amino acid tryptophan, or intercellular signaling and activation of regulatory T cell responses. Here we have studied 24 patients with acute PUUV infection to distinguish between these possibilities. Maximum IDO activity showed a significant positive correlation with FOXP3 expression levels in regulatory T cells, a quantitative surrogate marker for suppressive capability...
January 5, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28049381/kidney-disease-in-puumala-hantavirus-infection
#14
REVIEW
Jukka Mustonen, Tuula Outinen, Outi Laine, Ilkka Pörsti, Antti Vaheri, Satu Mäkelä
Acute kidney injury (AKI) remains a predominant clinical expression of nephropathia epidemica (NE). Its pathogenesis is not yet fully understood. Here, we describe the tissue injury comprehensively and present new data aimed to characterize the injury and explain its pathophysiology. When compared to tubulointerstitial nephritis of a wide variety of other aetiologies, a high degree of proteinuria is a distinguished trait of NE, a finding that is also helpful in the clinical suspicion of the disease. Recently, novel biomarkers for the prediction of severe AKI, including neutrophil gelatinase-associated lipocalin (NGAL), have been identified and ultrastructural tissue changes have been more accurately described...
May 2017: Infectious Diseases
https://www.readbyqxmd.com/read/28033261/elevated-thrombopoietin-and-platelet-indices-confirm-active-thrombopoiesis-but-fail-to-predict-clinical-severity-of-puumala-hantavirus-infection
#15
Outi Laine, Lotta Joutsi-Korhonen, Riitta Lassila, Heini Huhtala, Antti Vaheri, Satu Mäkelä, Jukka Mustonen
We evaluated the mechanisms of thrombocytopenia and procoagulant changes in relation with clinical variables in a cohort of patients with acute hantavirus disease.Blood samples of 33 prospectively recruited, consecutive, hospitalized patients with acute Puumala virus-induced hemorrhagic fever with renal syndrome (HFRS) were collected acutely and at the recovery visit (control). Serum thrombopoietin (TPO) and activity of plasma microparticles (MPs) from various cell sources were measured with enzyme-linked immunosorbent assay-based methods...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27983499/host-associated-absence-of-human-puumala-virus-infections-in-northern-and-eastern-germany
#16
Stephan Drewes, Hanan Sheikh Ali, Moritz Saxenhofer, Ulrike M Rosenfeld, Florian Binder, Fabian Cuypers, Mathias Schlegel, Susanne Röhrs, Gerald Heckel, Rainer G Ulrich
Human hantavirus disease cases, caused by Puumala virus (PUUV), are mainly recorded in western and southern areas of Germany. This bank vole reservoir survey confirmed PUUV presence in these regions but its absence in northern and eastern regions. PUUV occurrence is associated with the presence of the Western bank vole phylogroup.
January 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/27956196/microevolution-of-bank-voles-myodes-glareolus-at-neutral-and-immune-related-genes-during-multiannual-dynamic-cycles-consequences-for-puumala-hantavirus-epidemiology
#17
Adelaïde Dubois, Maxime Galan, Jean-François Cosson, Bertrand Gauffre, Heikki Henttonen, Jukka Niemimaa, Maria Razzauti, Liina Voutilainen, Renaud Vitalis, Emmanuel Guivier, Nathalie Charbonnel
Understanding how host dynamics, including variations of population size and dispersal, may affect the epidemiology of infectious diseases through ecological and evolutionary processes is an active research area. Here we focus on a bank vole (Myodes glareolus) metapopulation surveyed in Finland between 2005 and 2009. Bank vole is the reservoir of Puumala hantavirus (PUUV), the agent of nephropathia epidemica (NE, a mild form of hemorrhagic fever with renal symptom) in humans. M. glareolus populations experience multiannual density fluctuations that may influence the level of genetic diversity maintained in bank voles, PUUV prevalence and NE occurrence...
December 9, 2016: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/27918151/reservoir-driven-heterogeneous-distribution-of-recorded-human-puumala-virus-cases-in-south-west-germany
#18
S Drewes, H Turni, U M Rosenfeld, A Obiegala, P Straková, C Imholt, E Glatthaar, K Dressel, M Pfeffer, J Jacob, C Wagner-Wiening, R G Ulrich
Endemic regions for Puumala virus (PUUV) are located in the most affected federal state Baden-Wuerttemberg, South-West Germany, where high numbers of notified human hantavirus disease cases have been occurring for a long time. The distribution of human cases in Baden-Wuerttemberg is, however, heterogeneous, with a high number of cases recorded during 2012 in four districts (H districts) but a low number or even no cases recorded in four other districts (L districts). Bank vole monitoring during 2012, following a beech (Fagus sylvatica) mast year, resulted in the trapping of 499 bank voles, the host of PUUV...
December 5, 2016: Zoonoses and Public Health
https://www.readbyqxmd.com/read/27857837/autoimmune-polyendocrinopathy-and-hypophysitis-after-puumala-hantavirus-infection
#19
Marlene Tarvainen, Satu Mäkelä, Jukka Mustonen, Pia Jaatinen
Puumala hantavirus (PUUV) infection causes nephropathia epidemica (NE), a relatively mild form of haemorrhagic fever with renal syndrome (HFRS). Hypophyseal haemorrhage and hypopituitarism have been described in case reports on patients with acute NE. Chronic hypopituitarism diagnosed months or years after the acute illness has also been reported, without any signs of a haemorrhagic aetiology. The mechanisms leading to the late-onset hormonal defects remain unknown. Here, we present a case of NE-associated autoimmune polyendocrinopathy and hypopituitarism presumably due to autoimmune hypophysitis...
2016: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/27842513/clinical-characterization-of-two-severe-cases-of-hemorrhagic-fever-with-renal-syndrome-hfrs-caused-by-hantaviruses-puumala-and-dobrava-belgrade-genotype-sochi
#20
Ellen Krautkrämer, Christian Nusshag, Alexandra Baumann, Julia Schäfer, Jörg Hofmann, Paul Schnitzler, Boris Klempa, Peter T Witkowski, Detlev H Krüger, Martin Zeier
BACKGROUND: Hantavirus disease belongs to the emerging infections. The clinical picture and severity of infections differ between hantavirus species and may even vary between hantavirus genotypes. The mechanisms that lead to the broad variance of severity in infected patients are not completely understood. Host- and virus-specific factors are considered. CASE PRESENTATION: We analyzed severe cases of hantavirus disease in two young women. The first case was caused by Puumala virus (PUUV) infection in Germany; the second case describes the infection with Dobrava-Belgrade virus (DOBV) in Russia...
November 14, 2016: BMC Infectious Diseases
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