The prospective registry shall provide new insights into muscular involvement associated with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. For that reason consecutive patients with proven corona virus disease 2019 (Covid-19), who are admitted to the intensive care unit of the department of anesthesiology and intensive care medicine, or the department of neurology at Tübingen University Hospital, are enrolled. Multimodal assessment of neuromuscular pathology is based on medical history, laboratory biomarkers including inflammation parameters and autoimmune antibodies, vital parameters monitoring, muscle ultrasound, transthoracic echocardiography, electroneurography, as well as electromyography. Inclusion of follow-up visits permit longitudinal and prognostic evaluation of diagnostic and therapeutic interventions (e.g. immunomodulation with immunoglobulins, corticosteroids, or interleukin 6 receptor antagonists).