In a recent article published by the Canadian Agency for Drugs and Technologies in Health, compressed sodium chloride touch surfaces and their effectiveness against COVID-19 was discussed in detail.
Salt has been used for many years in food preservation, pharmaceuticals and home remedies. Salt kills pathogens by the principle of recrystallization, which physically tears apart the bacteria or viruses. This method has been tested against influenza viruses and bacteria and has been proven to be effective. This same principle would work to protect against the coronavirus.
Compressed sodium chloride touch surfaces, manufactured by Outbreaker Solutions, is being investigated as an antimicrobial for use on high-touch surfaces — such as door push plates, bed rails, and taps.
A 2016 pilot study found that a compressed sodium chloride surface reduced contamination with the methicillin-resistant Staphylococcus aureus (MRSA) bacteria by 94 per cent within the first 60 seconds compared with 71 to 73 per cent for copper surfaces.
Outbreaker Solutions is currently investigating whether these salt-coated surfaces will have a similar impact against SARS-CoV-2.