COVID-19 and other diseases.Furthermore, they have used this information to identify some drugs that it may be possible to repurpose as COVID-19 treatments — with melatonin chief among them.The study, which now appears in the journal PLOS Biology, lays the groundwork for future randomized controlled studies to confirm the initial findings.Stay informed with live updates on the current COVID-19 outbreak and visit our coronavirus hub for more advice on prevention and treatment.Although discovering an effective vaccine is crucial in reducing the COVID-19 pandemic, scientists are also researching other medical interventions that may play an important role in bringing it under control.Finding a treatment that significantly reduces the chance of.