Spray that costs pennies and kills viruses instantly could be a simple solution to Covid nightmare

Whether they’re in China, Hong Kong or Japan, they’ve become a familiar sight: men with giant cylinders on their backs spraying everything around them. Lampposts, train carriages, classrooms, railings, restaurants, bars, shops, airports, entrances to hospitals, schools, government buildings – they are all targets. And it seems to have paid off in the fight to … Read more