ACICOVID-19 Study Group (acicovid19@gmail.com): Jean-Michel Arnal, MD, Intensive Care Unit, Centre Hospitalier Toulon La Seyne sur Mer, Toulon; Julio Badie, MD, Intensive Care Unit, Hôpital Nord Franche-Comté, Trévenans; Audrey Berric, MD, Intensive Care Unit, Centre Hospitalier Toulon La Seyne sur Mer, Toulon; Jennifer Brunet, MD, Intensive Care Unit, Centre Hospitalier Privé St Martin, Caen; Thibault Bertrand, MD, Intensive Care Unir, Centre Hospitalier Toulon La Seyne sur Mer, Toulon; Dorothée Carpentier, MD, Intensive Care Unit, Hôpital Charles Nicolle, Centre Hospitalier Universitaire-Hôpitaux de Rouen, Rouen; Karim Chaoui, MD, Intensive Care Unit, Centre Hospitalier de Cahors, Cahors; Anaïs Chapelle, MD, Emergency Medicine Department, Centre Hospitalier Toulon La Seyne sur Mer, Toulon; Riad Chelha, MD, Intensive Care Unit, Hôpital Privé Claude Galien, Quincy sous Sénart; Gaëlle Corno, MD, Intensive Care Unit, Centre Hospitalier Toulon La Seyne sur Mer, Toulon; Cédric Daubin, MD, Department of Medical Intensive Care Unit, Centre Hospitalier Universitaire de Caen, Caen; Richard Descamps, MD, Department of Medical Intensive Care Unit, Centre Hospitalier Universitaire de Caen, Caen; Alexandre Demoule, MD PhD, Medical Intensive Care Unit, AP-HP 6 Sorbonne Université, site Pitié-Salpêtrière, Département R3S and Sorbonne Université, Paris; Stéphanie Deryckere, MD, Department of Anaesthesia and Intensive Care Unit, Centre Hospitalier Universitaire de Caen, Caen; Stephane-Yannis Donati, MD, Intensive Care Unit, Centre Hospitalier Toulon La Seyne sur Mer, Toulon; Laurent Ducros, MD, Intensive Care Unit, Centre Hospitalier Toulon La Seyne sur Mer, Toulon; Nathalie Embriaco, MD, Intensive Care Unit, Centre Hospitalier Toulon La Seyne sur Mer, Toulon; Nicolas Engrand, MD, Neuro-Intensive Care Unit, Hôpital Fondation Rothschild , Paris; Camille Foucault, MD, Intensive Care Unit, Centre Hospitalier de Cahors, Cahors; Sean Anthony Freeman, PhD, Department of Neurology, Centre Hospitalier Régional Universitaire de Lille, Lille; Santiago Freita Ramos, MD, Intensive Care Unit, Centre Hôpital Louis Mourier, AP-HP, Colombes; Arnaud Galbois, MD, Intensive Care Unit, Ramsay Santé-Hôpital Privé Claude Galien, Quincy-sous-Sénart; Aude Garnero, MD, Intensive Care Unit, Centre Hospitalier Toulon La Seyne sur Mer, Toulon; Cyrille Geay, MD, Intensive Care Unit, Centre Hospitalier Toulon La Seyne sur Mer, Toulon; Laurent Guérin, MD, Medical Intensive Care Unit, Hôpital de Bicêtre, Université Paris-Saclay, AP-HP, Le Kremlin-Bicêtre; Vivien Hong Tuan Ha, MD, Intensive Care Unit, Grand Hôpital de l’Est Francilien – site de Meaux, Meaux; Thomas Hullin, MD, Medical-Surgical Intensive Care Unit, Centre Hospitalier Sud Essonne, Etampes; Sébastien Jochmans, MD, Intensive Care Unit, Groupe Hospitalier Sud Ile de France, Melun; Michel Kaidomar, MD, Intensive Care Unit, Centre Hospitalier Intercommunal de Fréjus Saint Raphaël, Frejus; Charlotte Kelway, MD, Intensive Care Unit, Centre Hospitalier Toulon La Seyne sur Mer, Toulon; Marie Labruyere, MD, Intensive Care Unit, Centre Hospitalier Universitaire François Mitterrand, Dijon; Romaric Larcher, MD, Medical Intensive Care Unit, Hôpital Lapeyronie, CHU de Montpellier, Montpellier; Stéphane Legriel, MD PhD, Intensive Care Unit, Centre Hospitalier de Versailles-site André Mignot, Le Chesnay; Maxime Leloup, MD, Intensive Care Unit, Groupe Hospitalier La Rochelle Ré Aunis, La Rochelle; Olivier Lesieur, MD, Intensive Care Unit, Groupe Hospitalier La Rochelle Ré Aunis, La Rochelle; Isabelle Malissin, MD, Medical and Toxicological Intensive Care Unit, Centre Hospitalier Universitaire Lariboisière, AP-HP, Paris; Sandie Mazerand, MD, Medical Intensive Care Unit, Centre Hospitalier Universitaire Saint Antoine, AP-HP, Paris; Bruno Mégarbane, MD PhD, Medical and Toxicological Intensive Care Unit, Centre Hospitalier Universitaire Lariboisière, AP-HP, Paris; Marie-Anne Mélone, MD, Intensive Care Unit, Hôpital Charles Nicolle, Centre Hospitalier Universitaire-Hôpitaux de Rouen, Rouen; Edouard Menoret, MD, Neuro-Intensive Care Unit, Hôpital Fondation Rothschild , Paris; Matthieu Metzelard, MD, Intensive Care Unit, Centre Hospitalier Universitaire d’Amiens-Picardie, Amiens; Nicolas Mongardon, MD PhD, Department of Anaesthesiolgy and Critical Care Medicine, Hôpitaux Universitaires Henri Mondor, AP-HP, Créteil; Ly Van Phack Vong, MD, Intensive Care Unit, Grand Hôpital de l’Est Francilien – site de Marne la Vallée, Jossigny; Romain Persichini, MD, Intensive Care Unit, Medical-surgical Intensive Care Unit, CHU de La Réunion, Félix Guyon Hospital, Saint-Denis, La Réunion; Nicolas Pichon, MD, Intensive Care Unit, Centre Hospitalier Dubois, Brive La Gaillarde; Santiago Picos Gil, MD, Intensive Care Unit, Centre Hospitalier de la Dracénie, Draguignan; Jean-Pierre Quenot, MD PhD, Intensive Care Unit, Centre Hospitalier Universitaire François Mitterrand, Dijon; Damien Roux, MD PhD, Intensive Care Unit, Hôpital Louis Mourier, AP-HP, Colombes; David Schnell, MD, Intensive Care Unit, Centre Hospitalier d’Angoulême, Angoulême; Florian Sigaud, MD, Medical Intensive Care Unit, Centre Hospitalier Universitaire Grenoble-Alpes, Grenoble; Clement Suply, MD, Intensive Care Unit, Centre Hospitalier Intercommunal Fréjus Saint Raphaël, Frejus; Benjamin Sztrymf, MD PhD, Intensive Care Unit, Hôpital Antoine Béclère, Clamart; Nicolas Terzi, MD PhD, Medical Intensive Care Unit, Centre Hospitalier Universitaire Grenoble-Alpes, La Tronche; Didier Thevenin, MD, Intensive Care Unit, Centre Hospitalier Dr Schaffner, Lens; Sebastian Voicu, MD, Medical and Toxicological Intensive Care Unit, Centre Hospitalier Universitaire Lariboisière, AP-HP, Paris.