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Burden of infectious disease studies in Europe and the United Kingdom: a review of methodological design choices
- Periklis Charalampous, Juanita A. Haagsma, Lea S. Jakobsen, Vanessa Gorasso, Isabel Noguer, Alicia Padron-Monedero, Rodrigo Sarmiento, João Vasco Santos, Scott A. McDonald, Dietrich Plass, Grant M. A. Wyper, Ricardo Assunção, Elena von der Lippe, Balázs Ádám, Ala'a AlKerwi, Jalal Arabloo, Ana Lúcia Baltazar, Boris Bikbov, Maria Borrell-Pages, Iris Brus, Genc Burazeri, Serafeim C. Chaintoutis, José Chen-Xu, Nino Chkhaberidze, Seila Cilovic-Lagarija, Barbara Corso, Sarah Cuschieri, Carlotta Di Bari, Keren Dopelt, Mary Economou, Theophilus I. Emeto, Peter Fantke, Florian Fischer, Alberto Freitas, Juan Manuel García-González, Federica Gazzelloni, Mika Gissler, Artemis Gkitakou, Hakan Gulmez, Sezgin Gunes, Sebastian Haller, Romana Haneef, Cesar A. Hincapié, Paul Hynds, Jane Idavain, Milena Ilic, Irena Ilic, Gaetano Isola, Zubair Kabir, Maria Kamusheva, Pavel Kolkhir, Naime Meriç Konar, Polychronis Kostoulas, Mukhtar Kulimbet, Carlo La Vecchia, Paolo Lauriola, Miriam Levi, Marjeta Majer, Enkeleint A. Mechili, Lorenzo Monasta, Stefania Mondello, Javier Muñoz Laguna, Evangelia Nena, Edmond S. W. Ng, Paul Nguewa, Vikram Niranjan, Iskra Alexandra Nola, Rónán O'Caoimh, Marija Obradović, Elena Pallari, Mariana Peyroteo, Vera Pinheiro, Nurka Pranjic, Miguel Reina Ortiz, Silvia Riva, Cornelia Melinda Adi Santoso, Milena Santric Milicevic, Tugce Schmitt, Niko Speybroeck, Maximilian Sprügel, Paschalis Steiropoulos, Aleksandar Stevanovic, Lau Caspar Thygesen, Fimka Tozija, Brigid Unim, Hilal Bektaş Uysal, Orsolya Varga, Milena Vasic, Rafael José Vieira, Vahit Yigit, Brecht Devleesschauwer, Sara M. Pires
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- Journal:
- Epidemiology & Infection / Volume 151 / 2023
- Published online by Cambridge University Press:
- 09 January 2023, e19
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This systematic literature review aimed to provide an overview of the characteristics and methods used in studies applying the disability-adjusted life years (DALY) concept for infectious diseases within European Union (EU)/European Economic Area (EEA)/European Free Trade Association (EFTA) countries and the United Kingdom. Electronic databases and grey literature were searched for articles reporting the assessment of DALY and its components. We considered studies in which researchers performed DALY calculations using primary epidemiological data input sources. We screened 3053 studies of which 2948 were excluded and 105 studies met our inclusion criteria. Of these studies, 22 were multi-country and 83 were single-country studies, of which 46 were from the Netherlands. Food- and water-borne diseases were the most frequently studied infectious diseases. Between 2015 and 2022, the number of burden of infectious disease studies was 1.6 times higher compared to that published between 2000 and 2014. Almost all studies (97%) estimated DALYs based on the incidence- and pathogen-based approach and without social weighting functions; however, there was less methodological consensus with regards to the disability weights and life tables that were applied. The number of burden of infectious disease studies undertaken across Europe has increased over time. Development and use of guidelines will promote performing burden of infectious disease studies and facilitate comparability of the results.
Diversity in growth and protein degradation by dairy relevant lactic acid bacteria species in reconstituted whey
- Micaela Pescuma, Elvira M. Hébert, Elena Bru, Graciela Font de Valdez, Fernanda Mozzi
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- Journal:
- Journal of Dairy Research / Volume 79 / Issue 2 / May 2012
- Published online by Cambridge University Press:
- 19 April 2012, pp. 201-208
- Print publication:
- May 2012
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The high nutritional value of whey makes it an interesting substrate for the development of fermented foods. The aim of this work was to evaluate the growth and proteolytic activity of sixty-four strains of lactic acid bacteria in whey to further formulate a starter culture for the development of fermented whey-based beverages. Fermentations were performed at 37°C for 24 h in 10 and 16% (w/v) reconstituted whey powder. Cultivable populations, pH, and proteolytic activity (o-phthaldialdehyde test) were determined at 6 and 24 h incubation. Hydrolysis of whey proteins was analysed by Tricine SDS-PAGE. A principal component analysis (PCA) was applied to evaluate the behaviour of strains. Forty-six percent of the strains grew between 1 and 2 Δlog CFU/ml while 19% grew less than 0·9 Δlog CFU/ml in both reconstituted whey solutions. Regarding the proteolytic activity, most of the lactobacilli released amino acids and small peptides during the first 6 h incubation while streptococci consumed the amino acids initially present in whey to sustain growth. Whey proteins were degraded by the studied strains although to different extents. Special attention was paid to the main allergenic whey protein, β-lactoglobulin, which was degraded the most by Lactobacillus acidophilus CRL 636 and Lb. delbrueckii subsp. bulgaricus CRL 656. The strain variability observed and the PCA applied in this study allowed selecting appropriate strains able to improve the nutritional characteristics (through amino group release and protein degradation) and storage (decrease in pH) of whey.
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