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Epidemiology and genotype analysis of emerging sapovirus-associated infections across Europe.

ABSTRACT: Sapoviruses (SaVs) belong to the Caliciviridae family and can cause gastroenteritis in humans and swine. Despite extensive testing, human sapoviruses have been found only in sporadic cases and in one mixed outbreak in children between 1994 and 2007 in the Netherlands. Here we describe a change in sapovirus epidemiology in the Netherlands resulting in sapovirus outbreaks and infections in adults. From November 2007 to January 2009, 478 outbreaks of acute gastroenteritis were reported to the National Institute for Public Health and the Environment in the Netherlands as a part of ongoing surveillance. Sapoviruses were found to be the most likely cause of 19 outbreaks (4%). During the same 2-year period, sapovirus infections were reported in Sweden, Slovenia, and Hungary. In the Netherlands, further characterization of outbreak strains showed that 12 (63%) sapovirus outbreaks were caused by genotype I.2 viruses. Most patients were adults older than 60 years (range, 1 to 100 years). Phylogenetic analysis using all presently available SaV sequences showed high homology between genotype I.2 strains detected in different geographical regions (Sweden, Slovenia, Taiwan, Japan, and Russia) since 2007. These first reported outbreaks of sapovirus infections in adults in the Netherlands were remarkable. Detection of identical genotypes in many samples might suggest that these viruses have the same origin, and since the infection is spreading fast, the prevalence of sapovirus infection may be increasing. The incidence of sapovirus infections in these countries suggests that a substantial part of Europe is affected by this virus.

SUBMITTER: Svraka S

PROVIDER: S-EPMC2884469 | biostudies-literature | 2010 Jun

REPOSITORIES: biostudies-literature

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Epidemiology and genotype analysis of emerging sapovirus-associated infections across Europe.

Svraka Sanela S Vennema Harry H van der Veer Bas B Hedlund Kjell-Olof KO Thorhagen Margareta M Siebenga Joukje J Duizer Erwin E Koopmans Marion M

Journal of clinical microbiology 20100414 6

Sapoviruses (SaVs) belong to the Caliciviridae family and can cause gastroenteritis in humans and swine. Despite extensive testing, human sapoviruses have been found only in sporadic cases and in one mixed outbreak in children between 1994 and 2007 in the Netherlands. Here we describe a change in sapovirus epidemiology in the Netherlands resulting in sapovirus outbreaks and infections in adults. From November 2007 to January 2009, 478 outbreaks of acute gastroenteritis were reported to the Natio ...[more]

PMID: 20392905

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Project description:BACKGROUND:Surgical site infections (SSIs) are among the most common hospital acquired infections. While the incidence of SSI in certain indicator procedures is the subject of ongoing surveillance efforts in hospitals and health care systems around the world, SSI rates vary markedly within surgical categories and are poorly represented by routinely monitored indicator procedures (eg, mastectomy or hernia surgery). Therefore, relying on indicator procedures to estimate the burden of SSI is imprecise and introduces bias as hospitals may take special precautions to achieve lower SSI rates. The most common cause of SSI is Staphylococcus aureus (S. aureus), as recently confirmed by a Europe-wide point-prevalence study conducted by the European Centre for Disease Prevention and Control (ECDC). OBJECTIVE:The primary objective of this study is to determine the overall and procedure-specific incidence of S. aureus SSI in Europe. Secondary objectives are the overall and procedure-specific outcomes as well as the economic burden of S. aureus SSI in Europe. Explorative objectives are to characterize the composition of the surgical patient population and to estimate the number of patients at risk for S. aureus SSI. METHODS:A retrospective, multinational, multicenter cohort study (Staphylococcus aureus Surgical Site Infection Multinational Epidemiology in Europe [SALT] study) with a nested case-control part will be conducted. The study will include all surgical procedures at a participating center in order to prevent selection bias and strengthen the understanding of SSI risk by determining the incidence for all common surgical procedures. Data will be assessed in the cohort population, including 150,000 adult patients who underwent any surgical procedure in 2016, and the case-control population. We will match patients establishing S. aureus SSI 1:1 with controls from the same center. Data on demographics, surgery, and microbiology will be exported from electronic files. More detailed data will be captured from the case-control population. The SALT study will include 13 major or academic surgical centers in Europe, comprising 3 in France, 4 in Germany, 2 in Italy, 3 in Spain, and 1 in the United Kingdom. Sites were selected using a feasibility questionnaire. RESULTS:The SALT study is currently recruiting patients. The aim is to complete recruitment in February 2018 and to close the database in September 2018. The final results are expected by the end of 2018. CONCLUSIONS:Results of the SALT study will help to better understand the precise risk of certain procedures. They will also provide insight into the overall and procedure-specific incidence and outcome as well as the economic burden of S. aureus SSI in Europe. Findings of the study may help guide the design of clinical trials for S. aureus vaccines. TRIAL REGISTRATION:ClinicalTrials.gov NCT03353532; https://clinicaltrials.gov/ct2/show/NCT03353532 (Archived by WebCite at http://www.webcitation.org/6xAK3gVmO).

Dataset Information

Epidemiology and genotype analysis of emerging sapovirus-associated infections across Europe.

Publications

Epidemiology and genotype analysis of emerging sapovirus-associated infections across Europe.

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