Low Dose Lung Radiotherapy to Treat COVID-19 Pneumonia

Subjects will be identified following admission to hospital who test positive for COVID-19 infection. They will then be informed and consented, and eligibility confirmed and registered to study. Following this the first, sentinel patient, will be treated with 0.5Gy dose radiotherapy to cover the lungs, with heterogeneity correction. A further 0.5Gy dose can be repeated within 96 hours. There shall then be a 7 day gap prior to recruiting patient 2. The remaining patients will be recruited, treated and observed in cohorts of 3. The patients shall then be followed up at 48 hours post Radiotherapy, 7 days post radiotherapy and 29 days post radiotherapy. With assessment of Physiological parameters, survival status, laboratory testing and imaging performed on follow up at 7 and 29 days.