Albania: (A Harxhi), University Hospital Center of Tirana, Tirana.
Argentina: (M Losso), M Kundro, Hospital JM Ramos Mejia, Buenos Aires.
Austria: (M Knappik), P Cichon, Klinik Penzing, Vienna; M Gisinger, Medical University Innsbruck, Innsbruck. 
Belarus: (I Karpov), Belarusian State Medical University, Minsk; VM Mitsura, Gomel State Medical University, Gomel; D Paduto, Regional Centre for Hygiene, Gomel.
Belgium: (N Clumeck), S De Wit, M Delforge, Saint-Pierre Hospital, Brussels; M Frankenhuijsen, Institute of Tropical Medicine, Antwerp; M De Scheerder, University Ziekenhuis Gent, Gent. 
Bosnia-Herzegovina: (J Topalovic), Klinicki Centar Univerziteta Sarajevo, Sarajevo. 
Croatia: (J Begovac), University Hospital of Infectious Diseases, Zagreb. 
Czech Republic: (D Jilich), L Machala, Faculty Hospital Bulovka, Prague; D Sedlacek, Charles University Hospital, Plzen. 
Denmark: T Benfield, Hvidovre Hospital, Copenhagen; J Gerstoft, AM Lebech, O Kirk, Rigshospitalet, Copenhagen; IS Johansen, Odense University Hospital, Odense; L Ostergaard, Skejby Hospital, Aarhus; L Wiese, Sjællands Universitetshospital, Roskilde; L N Nielsen, Hillerod Hospital, Hillerod. 
Estonia: (K Zilmer), West-Tallinn Central Hospital, Tallinn; J Smidt, Narva AIDS Centre, Siseklinik, Kohtla-Järve. 
Finland: (I Aho), Helsinki University Central Hospital, Helsinki. 
France: (J-P Viard), The Hôtel-Dieu Hospital, Paris; K Lacombe, Hospital Saint-Antoine, Paris; C Pradier, E Fontas, Hôpital de l'Archet, Nice; C Duvivier, Hôpital Necker-Enfants Malades, Paris. 
Germany: (J Rockstroh), Universitäts Klinik Bonn; O Degen, University Medical Center Hamburg-Eppendorf, Infectious Diseases Unit, Hamburg; C Hoffmann, ICH Study Center GmbH & Co. KG, Hamburg; C Stefan, J.W. Goethe University Hospital, Frankfurt; J Bogner, Medizinische Poliklinik, Munich; C Lehmann, University Hospital Cologne, Cologne. 
Georgia: (A Abutidze) Infectious Diseases, AIDS & Clinical Immunology Research Center, Tbilisi.
Greece: (H Sambatakou), Ippokration General Hospital, Athens; G Adamis, N Paissios, Athens General Hospital "G Gennimatas", Athens.
Hungary: (J Szlávik), South-Pest Hospital Centre, Budapest.
Iceland: (M Gottfredsson), Landspitali University Hospital, Reykjavik. 
Ireland: (E Devitt), St. James's Hospital, Dublin.
Israel: (L Tau), Ichilov Hospital, Tel Aviv; H Elinav, Hadassah University Hospital, Jerusalem; D Elbirt, AIDS Center (Neve Or), Rehovot. 
Italy: (G Marchetti), Ospedale San Paulo, Milan; G Guaraldi, C Mussini, Università Modena, Modena; A Castagna, Ospedale San Raffaele, Milan; A Ridolfo, F Schiavo, Ospedale. L. Sacco, Milan.

Lithuania: (V Uzdaviniene) Vilnius University Hospital Santaros Klinikos, Vilnius; R Matulionyte, Vilnius University, Faculty of Medicine, Department of Infectious Diseases and Dermatovenerology, Vilnius. 
Luxembourg: (T Staub), R Batutu, Centre Hospitalier, Luxembourg. 
Netherlands: (Mark vd Valk), Academisch Medisch Centrum bij de Universiteit van Amsterdam, Amsterdam.
North Macedonia (J Trajanovska), University Clinic for Infectious Diseases & Febrile Conditions, Skopje.
Norway: (DH Reikvam), Oslo University Hospital, Olso.
Poland: (B Knysz), B Szetela, M Inglot, Medical University, Wroclaw; E Bakowska, Wojewodzki Szpital Zakazny, Warsawa; M Parczewski, B Aksak-Was, Pomeramian Academy of Medicine, Szczecin; M Beniowski, E Mularska, Szpital Specjalistycsny, Chorzow; E Jablonowska, J Kamerys, K Wojcik, Wojewodzki Szpital Specjalistyczny, Lodz; I Mozer-Lisewska, B Rozplochowski, Poznan University of Medical Sciences, Poznan.
Portugal: (A Zagalo), Hospital Santa Maria, Lisbon; K Mansinho, Hospital de Egas Moniz, Lisbon; F Maltez, Hospital Curry Cabral, Lisbon. 
Romania: (R Radoi), C Oprea, Victor Babes Clinical Hospital for Infectious and Tropical Diseases, Bucharest.
Russia: (D Gusev), Medical Academy Botkin Hospital, St Petersburg; T Trofimova, Novgorod Centre for AIDS prevention and control, Novgorod the Great; E Kuzovatova, Academian I.N.Blokhina Nizhny Novgorod Scientific Research Institute of Epidemiology and Microbiology, Nizhny Novgorod; E Borodulina, E Vdoushkina, Samara State Medical University, Samara.
Serbia: (J Ranin), The Institute for Infectious and Tropical Diseases, Belgrade. 
Slovenia: (J Tomazic), University Clinical Centre Ljubljana, Ljubljana. 
Spain: (E Martínez), JM Miró, M Laguno, JL Blanco, M Martinez-Rebollar, J Ambrosioni, B Torres, L de la Mora, A Gonzalez-Cordon, I Chivite, A Foncillas, E de Lazzaari, L Berrocal, P Callau, A Inciarte, J. Alcami, J Mallolas, Hospital Clinic – IDIBAPS University of Barcelona, and CIBERINFEC, S Moreno, S del Campo, Hospital Ramon y Cajal, Madrid; R Paredes, J Puig, JR Santos, C Miranda, Hospital Germans Trias I Pujol, Badalona; P Domingo, GM Mar, MG Gracia, Hospital de la Santa Creu, Barcelona; ES De A Arroniz, A Ponz, Hospital Universitario de Alava, Vitoria-Gasteiz. 
Sweden: (C Carlander), A Sönnerborg, Karolinska University Hospital, Stockholm; J Brännström, K Falconer, Venhälsan-Sodersjukhuset, Stockholm; F Månsson, Malmö University Hospital, Malmö.
Switzerland: (K Kusejko), D Braun, University Hospital Zurich; M Cavassini, University Hospital Lausanne; A Calmy, University Hospital Geneva; H Furrer, University Hospital Bern; M Battegay, University Hospital Basel; P Schmid, Cantonal Hospital St. Gallen; E Bernasconi, Ente Ospedaliero Cantonale, Lugono. 
Ukraine: A Kuznetsova, Kharkov State Medical University, Kharkov; L Hetman, A Kryshchuk, Public Health Center of the MOH, Kyiv. 
United Kingdom: M Boffito, Chelsea and Westminster Hospital, London; S Edwards, Mortimer Market Centre, London; F Burns, Royal Free and University College Medical School, London; C Orkin, Royal London Hospital, London; A Winston, Imperial College School of Medicine at St. Mary's, London; A Clarke, Royal Sussex County Hospital, Brighton; C Mackintosh, Western General Hospital, Edinburgh.
 

Medical University, Gdansk, Poland
Infectious Diseases Hospital, Sofia, Bulgaria
Hôpital de la Croix Rousse, Lyon, France
Hôpital de la Pitié-Salpétière, Paris, France
Unité INSERM, Bordeaux, France
Hôpital Edouard Herriot, Lyon, France
Bernhard Nocht Institut für Tropenmedizin, Hamburg, Germany
1st I.K.A Hospital of Athens, Athens, Greece
Ospedale Riuniti, Divisione Malattie Infettive, Bergamo, Italy
Ospedale di Bolzano, Divisione Malattie Infettive, Bolzano, Italy
Ospedale Cotugno,III Divisione Malattie Infettive, Napoli, Italy
Rambam-Health Care Campus, Haifa, Israel
Dérer Hospital, Bratislava, Slovakia
Hospital Carlos III, Departamento de Enfermedades Infecciosas, Madrid, Spain
Kyiv Centre for AIDS, Kyiv, Ukraine
Luhansk State Medical University, Luhansk, Ukraine
Odessa Region AIDS Center, Odessa, Ukraine
St Petersburg AIDS Centre, St Petersburg, Russia
Infectology Centre of Latvia, Riga, Latvia
University di Roma la Sapienza, Rome, Italy
Istituto Nazionale Malattie Infettive Lazzaro Spallanzani, Rome, Italy
 

Steering Committee: C Boesecke, C Carlander, C Pradier, C Oprea, E Martinez, G Wandeler, I Aho, I Karpov, J Begovac, JD Kowalska, J Lundgren, LD Rasmussen, L Tau, O Nesterova, R Matulionyte, S Nozza

Chair: JD Kowalska

Study lead: L Peters

Coordinating Centre Staff: L Peters, JF Larsen, M Gardizi, N Jaschinski, A Timiryasova, B Neesgaard, F Roper, D Raben, AH Fischer

Statistical Staff: A Cozzi-Lepri, W Bannister
IT Staff: TW Elsing, LR Kumar, B Pepa
 

EuroSIDA has received funding from ViiV Healthcare LLC, Janssen Scientific Affairs, Janssen R&D, Bristol-Myers Squibb Company, Merck Sharp & Dohme Corp, Gilead Sciences and the European Union’s Seventh Framework Programme for research, technological development and demonstration under EuroCoord grant agreement n˚ 260694. The participation of centres from Switzerland has been supported by The Swiss National Science Foundation (Grant 148522).The study is also supported by a grant [grant number DNRF126] from the Danish National Research Foundation and by the International Cohort Consortium of Infectious Disease (RESPOND).