Vaccinations aren’t the only way scientists hope to stop the spread of Covid-19 – they’re also working on a nasal spray to help in the battle against the disease.
Researchers have tested a nasal spray being developed in Australia and Britain on ferrets (a type of weasel).
The idea behind the spray is that it contains a type of molecule that combines with cells in the nose to form a kind of shield – and so the medicine “triggers” the body’s natural immune system.
