A nasal spray that can prevent COVID-19 for up to two days has been developed by researchers in the UK – and it may be available over the counter by the summer, according to a report in The New York Post.
The spray — developed by scientists at the University of Birmingham — prevents infection by capturing the bug in the nose and covering it in a coating from which it cannot escape.
As a result, it would be safe for someone to exhale near another person because the virus would be inactive and harmless.
The researchers announced in November that lab experiments showed the spray prevented an infection from spreading for up to 48 hours.
The scientists believe using it four times a day would be enough for general protection, although it is safe enough to be used every 20 minutes in a high-risk environment such as crowded schools.