Nitric Oxide, paves the way for future research to see whether the theory stands up to practice.Stay informed with live updates on the current COVID-19 outbreak and visit our coronavirus hub for more advice on prevention and treatment.The sudden emergence and rapid spread of SARS-CoV-2 have left scientists urgently seeking therapies to slow the spread of the virus and relieve the symptoms of the disease that it can cause, COVID-19.As well as being a direct threat to human life, COVID-19 has also overwhelmed critical care infrastructure around the world, imperiling the lives of people who do not have the disease but nonetheless need urgent access to critical care.While positive steps toward a vaccine are underway, none has been approved for.