Lung abscess following ventilator-associated pneumonia during COVID-19: a retrospective multicenter cohort study.

"Declarations Ethics approval and consent to participatePatients and their relatives were informed of the possibility to use their medical data for retrospective studies and their opposition was researched. The study was approved by the French Intensive Care Society Ethics Committee (Commission d’Ethique de la SRLF, reference CE SRLF 21‐06) which waived the need for written consent according to the French legislation. The study was also declared and approved by the “Portail d’Accès aux Données de Santé, Assistance Publique-Hôpitaux de Marseille” (Registration number PADS20‐366). Consent for publicationNot applicable. Competing interestsThe authors declare that they have no competing interests. Competing interests The authors declare that they have no competing interests."

"Funding None."

"Declarations: Ethics approval and consent to participatePatients and their relatives were informed of the possibility to use their medical data for retrospective studies and their opposition was researched. The study was approved by the French Intensive Care Society Ethics Committee (Commission d’Ethique de la SRLF, reference CE SRLF 21‐06) which waived the need for written consent according to the French legislation. The study was also declared and approved by the “Portail d’Accès aux Données de Santé, Assistance Publique-Hôpitaux de Marseille” (Registration number PADS20‐366).: Consent for publicationNot applicable.: Competing interestsThe authors declare that they have no competing interests. Ethics approval and consent to participate: Patients and their relatives were informed of the possibility to use their medical data for retrospective studies and their opposition was researched. The study was approved by the French Intensive Care Society Ethics Committee (Commission d’Ethique de la SRLF, reference CE SRLF 21‐06) which waived the need for written consent according to the French legislation. The study was also declared and approved by the “Portail d’Accès aux Données de Santé, Assistance Publique-Hôpitaux de Marseille” (Registration number PADS20‐366)."