Inclusion Criteria:  positive SARS-CoV-2 RT-PCR Acute respiratory failure requiring non-invasive respiratory support (NIV or high flow Oxygen) PaO2/FiO2 <200  Exclusion Criteria:  Age <18 years Pregnancy (to be excluded using Serum betaHCG in women of childbearing age) Signs of infection, eczema or Psoriasis at the application site Active malignancy Implanted cardiac Pacemaker, deficrillator or other active implanted electrical devices Patient unable to consent Heart rate <60/min Known vagal hypersensitivity History of hemophilia