Low dose anti-inflammatory radiotherapy for the treatment of pneumonia by covid-19: A proposal for a multi-centric prospective trial.

•Interstitial bilateral pneumonia is the main complication of severe COVID-19.•Low-dose radiation therapy (LD-RT) has well-known anti-inflammatory effects.•LD-RT can interfere with the hyper-inflammatory cascade associated with severe COVID-19.•LD-RT could reduce the severity of associated cytokine release caused by COVID-19.•This trial will evaluate efficacy of lung LD-RT for interstitial COVID-19 pneumonia.