According to aPubMed study, Nitric Oxide has also been connected to the suppression of numerous viruses, including the Coronavirus, by reducing viral mRNA transcription and inhibiting the virus's reproduction cycle.
Studies showing the effects of nitric oxide gas on the novel Covid-19.
https://www.ptcommunity.com/wire/emphycorp-news-nitric-oxide-currently-being-tested-clinical-trials-potential-treatment-patients
https://www.clinicaltrials.gov/ct2/show/NCT04306393
Studies supporting the inhibition of viral replication of SARS with nitric oxide.
https://www.ncbi.nlm.nih.gov/pubmed/15234326
https://jvi.asm.org/content/79/3/1966
Studies detailing the anti-viral properties of nitric oxide.
https://www.sciencedirect.com/science/article/pii/S1074761300800035
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3283670/
*The Food and Drug Administration has not evaluated these statements. These products are not intended to diagnose, treat, cure, or prevent any disease.